palo verde nuclear generating station (pvngs) units 1, 2 ... · 10 cfr 50.59 report...

A16i: r-S 10 CFR 50.59

Craig K. Seaman \1l ,

102-04538-CKS/SAB/CJJ February 27, 2001

U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-37 Washington, DC 20555

Dear Sirs:

Subject: Palo Verde Nuclear Generating Station (PVNGS) Units 1, 2, & 3 Docket Nos. STN 50-5281529/530 10 CFR 50.59 Report (January-December 1999)

Pursuant to 10 CFR 50.59(b)(2), Arizona Public Service Company is submitting the enclosed report. This report is a compilation of the changes completed during January-December 1999 at PVNGS Units 1, 2, & 3. The enclosed report contains a brief description of the changes and a brief summary of the safety evaluation for each change.

No commitments are being made to the NRC by this letter. Should you have any questions, please contact Scott A. Bauer at (623) 393-5978.

Sincerely,

CKS/SAB/CJJ/kg

Enclosure

cc E. W. Merschoff J. N. Donohew J. M. Moorman

ENCLOSURE

PALO VERDE NUCLEAR GENERATING STATION

ACRONYM/ABBREVIATION DEFINITION SHEET

AND

10 CFR 50.59 REPORT

JANUARY - DECEMBER 1999

Acronym/Abbreviation Definition Sheet

ACU

ADV

AF

AFAS

AFU

ALARA

ANI

ASI

ASL

AVL

BAC

BAM P

BDS

BFT

BWNS

CALC

CD

CEA

CEDM

CEOG

CH

CIAS

COLR

COLSS

CPC

CREFS

CRDR

CSAS

CS

CST

CT

CVCS

CW

DAWPS

DBA

DBE

DBM

DCF

DCP

DF

DFWO

DG

DS

Essential Air Cooling Units

Atmospheric Dump Valve

Auxiliary Feedwater

Auxiliary Feedwater Actuation System

Air Filtration Unit

As Low As Reasonably Achievable

American Nuclear Insurers

Axial Shape Index

Approved Suppliers List

Approved Vendors List

Boric Acid Concentrator

Boric Acid Makeup Pump

Blowdown Stack

Blowdown Flash Tank

Babcock & Wilcox Nuclear Services

Calculation

Condensate System

Control Element Assembly

Control Element Drive Mechanism

Combustion Engineering Owners Group

Charging System

Containment Isolation Actuation Signal

Core Operating Limits Report

Core Operating Limit Supervisory System

Core Protection Calculator

Control Room Essential Filtration System

Condition Reporting Disposition Request

Containment Spray Actuation System

Containment Spray

Condensate Storage Tank

Condensate Transfer System

Chemical Volume Control System

Circulating Water System

Dry Active Waste Processing Storage Facility

Design Basis Accident

Design Basis Event

Design Basis Manual

Dose Conversion Factor

Design Change Package

Diesel Fuel Oil and Transfer System

Deficiency Work Order

Diesel Generator

Domestic Water System

DVM Digital Voltmeter

DW Deminerlizer Water

EAL Emergency Action Levels

EC Essential Cooling

ECCS Emergency Core Cooling System

ECE Equipment Change Evaluation

ECT Eddy Current Testing

ED Feedwater Heater Extraction

EDG Emergency Diesel Generator

EER Engineering Evaluation Request

EOF Emergency Operating Facility

EOP Emergency Operating Procedures

EQ Equipment Qualification

ERFDADS Emergency Response Facilities Data Acquisition Display System

ES Safety Equipment Status

ESF Emergency Safety Features

ESFAS Engineered Safety Feature Actuation System

ESPS Essential Spray Pond System

EQID Equipment Identification Numbers

EW Essential Cooling Water System

FBEV Fuel Building Essential Ventilation

FBVAS Fuel Building Ventilation Actuation System

FME Foreign Matenal Exclusion

FP Fire Protection

FW Feedwater

FWCS Feedwater Control System

FWLB Feedwater Line Break

GTG Gas Turbine Generator

HELB High Energy Line Break

HJTC Heated Junction Thermocouple

HPSI High Pressure Safety Injection

HVAC Heating, Ventilation, Air Conditioning

IA Instrument Air

ILRT Integrated Leak Rate Test

IPE Individual Plant Examination

ITS Improved Technical Specifications

LBV Licensing Basis Validation

LFB Large Feedwater Break

LHR Linear Heat Rate

LOCA Loss of Coolant Accident

LOCV Lower Condenser Vacuum

LOP Loss of Offsite Power

LPMS

LPSI

LRS

LSRO

MEE

MSIV

MSLB

NC

NES

NPSH

NQR

NSS

OBE

ODCM

ODCR

PASS

PC

PM

PMS

PPS

PRA

PRM

PSV

PUMS

PW

QSPDS

RCA

RCP

RCS

RMS

RMWPs

RPS

RTD

RTP

RVLMS

RWLMS

RWT

SARCN

SBCV

SC

SCAT

SCC

SDC

SDCHX

SDR

Loose Parts Monitoring System

Low Pressure Safety Injection

Liquid Radwaste System

Licensed Senior Reactor Operator

Material Evaluation Report

Main Steam Isolation Valve

Main Steam Line Break

Nuclear Cooling

Nuclear Engineering Services

Net Positive Suction Head

Non-Quality Related

Nuclear Sampling System

Operational Basis Earthquake

Offsite Dose Calculation Manual

Outgoing Document Change Request

Post Accident Sampling System

Fuel Pool Cooling

Periodic Maintenance

Plant Computer

Plant Protection System

Probabilistic Risk Assessment

Process Radiation Monitor

Pressurizer Safety Valve

Plant Multiplexer System

Pressurized Water

Qualified Safety Parameter Display System

Reactor Coolant Accident

Reactor Coolant Pump

Reactor Coolant System

Radiation Monitoring System

Reactor Makeup Water Pumps

Reactor Protection System

Resistance Thermal Detector

Rated Thermal Power

Reactor Vessel Monitoring System

Reactor Water Level Monitoring System

Reactor Water Tank

Safety Analysis Report Change Notice

Steam Bypass Control Valve

Secondary Chemical Control

Spray Chemical Addition Tank

Stress Corrosion Cracking

Shutdown Cooling

Shutdown Cooling Heat Exchanger

Supplier Document Register

SESS

SFP

SG

SGTR

SIAS

SIS

SMOD

SOV

SP

SPCR

SRT

SS

SSC

SSE

STE

TC

TI

TMOD

TRM

TSC

TSP

UHS

UT

UV

VCT

VDP

WC

WO

Safety Equipment Status System

Spent Fuel Pool

Steam Generator

Steam Generator Tube Rupture

Safety Injection Actuation Signal

Safety Injection System

Site Modification

Solenoid Operated Valve

Spray Pond

Setpoint Change Request

Surge Rinse Tank

Sampling System

System, Structure and Component

Safe Shutdown Earthquake

Special Test Equipment

Turbine Cooling Water

Temperature Indicator

Temporary Modification

Technical Requirements Manual

Technical Support Center

Temporary Shielding Protection

Ultimate Heat Sink

Ultrasonic Testing

Ultraviolet

Volume Control Tank

Vendor Document Procedure

Chilled Water

Work Order

January 1999 - December 1999 - PVNGS 50.59 Report

Doe Type Doc Number Log Description Summary Number

CALC 01-MA-SI-991 99-00116 Calculation 01 -MA-SI-991 was pcrformed to This does not introduce an unreviewcd safety question. No changes to provide limitations and constraints for reduced the TSs are required. The probability/consequences of accidents inventory evaluations, previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to safety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safcty as defined inl the basis of thc TSs has not been reduced.

CALC 13-MC-CH-201 .R6 99-00084 This calculation has been revised to This does not introduce an unreviewed safety question. No changes to incorporate a new process limit for the RAS the TSs are required. The probability/consequences of accidents set-point in determination of the ESF reserve previously evaluated have not been increased. The piobability/ volume, consequences of a malfunction to equipment important to satLty have not

been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

CRDR 2-9-0023 99-00026 This CRDR evaluated the introduction of This does not introduce an unreviewed safety question. No changes to transient materials inside the containment the TSs are required. The probability/consequences of accidents building during mode I to facilitate previously evaluated have not been increased. The probability/ maintenance related activities. consequences of a malfunction to equipment important to safety have not


CRDR 2-9-0160 99-00067 This CRDR evsalated the intirodIictioii of This does not introduce an unreviewed safcty question. No changes to transient materials (scaffold) inside the the TSs are required. The probability/consequences of accidents containment building du ring mode 1 2, and 3 previously evaluated have not been increased. The probability/ to facilitate the repair of pressurizer heaters. consequences of a malfunction to equipment important to safcty have not


CRDR 93504 98-00085 This CRDR evaluated the introduction of This does not introduce an unreviewed safety question. No hainges to transient materials inside the containment TSs arc required. The probability/consequences of accidents pIreviously building during mode I to facilitate evaluated have not been increased. The probability/conseqn clces of a maintenance related activities. malfunction of equipment important to safety have not been incircased.

The possibility of an accidenitiiialf'unction of a different type fias not been introduced. The margin of safety Lis defined in the basis ofhc th Ss has not been reduced

Page Iof 23

January 1999 - December 1999 - PVNGS 50.59 Report Doc Type Doc Number Log Description Summary

Number CRDR 9-9-0236 99-00028 This CRDR evaluated the introduction of This does not introduce an unreviewed safety question. No changes to

transient materials inside the containment the TSs are required. The probability/consequences of accidents building during plant modes 3 and 4 during previously evaluated have not been increased. The probability/ shutdown to facilitate refueling outage related consequences of a malfunction to equipment important to salety have not activities, been increased. The possibility of a different type of accident or

malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

CRDR 9-9-0542 99-00072 This CRDR evaluated the introduction of This does not introduce an unreviewed safety question. No changes to transient materials (scaffold) inside the the TSs are required. The probability/consequences of accidents containment building during mode 1, 2, and 3 previously evaluated have not been increased. The probability/ to facilitate the repair of pressurizer heaters. consequences of a malfunction to equipment important to safety have not


DFWO 845318 99-00049 This DFWO separated the grounding from the This does not introduce an unreviewed safety question. No changes to lightning protection connections - Unit 2 the TSs are required. The probability/consequences of accidents Cooling Tower. previously evaluated have not been increased. The probability!

consequences of a malfunction to equipment important to safety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

DFWO 865161 98-00215 This DFWO allowed the use of alternative This does not introduce an unreviewed safecty question. No changes to materials for components in or connected to the TSs are required. The probability/consequences of accidents the Chemical Waste Neutralizer Tanks. previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment irnportant to safety have not been increased. The possibility of a different type of accident or imalfunction has not been created. The inargin of safety as defined in the basis of the TSs has not been reduced.

DFWO 870094 99-00101 This DFWO installed a new configuration for This does not introduce an unreviewed safety' question. No .hanges to the lighting protection system flor Unit 2 the TSs are required. The probability/consequences of accidents cooling tower. previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to salety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as deftined in the basis of the TSs has not been reduced.

Page 2 of 23

January 1999 - December 1999 - PVNGS 50.59 Report Doc Type Doe Number Log Description Summary

Number DFWO 874896 99-00040 This DFWO allowed Engineering to evaluate This does not introduce an unreviewed safety question. No changes to

corrosion wastage to RCP2A clamp ring and the TSs are required. The probability/consequences of accidents closure nuts. previously evaluated have not been increased. The probability/


DFWO 886028 99-00088 This DFWO restored lines IPDGNLI73 and This does not introduce an unreviewed safety question. No changes to IPDGNL 174 to the design configuration in the TSs are required. The probability/consequences of accidents accordance with 01 -P-DGF-701 and 01-P- previously evaluated have not been increased. The probability/ DGP-00 1. consequences of a malfunction to equipment important to safety have not

been increased. The possibility of a different type of accident oi malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

DFWO 894943 99-00106 This DFWO allowed the installation of a This does not introduce an unreviewed safety question. No changes to soft/rubber patch to the condenser water box the TSs are required. The probability/consequences of accidents vent nozzle which had developed a pin hole previously evaluated have not been increased. The probability/ size leak Final repair will be completed during consequences of a malfunction to equipment important to salety have not the refueling outage. been increased. The possibility of a different type of accident or


DFWO 899856 99-00144 This DFWO repaired the Unit I "A" and "B" This does not introduce an unieviewed safety question. No changes to FW pump suction strainers. The repair of the the TSs are required. The probability/consequences of accidents suction strainers included removal of the miesh previously evaluated have not been increased. The probability/ and reinforcing braces from the 3/8" base consequences of a malfunction to equipment important to salcty have not support. been increased. The possibility of a different type of accident or


DFWO 902195 99-00149 This DFWO repaired damaged thermocouple This does not introduce an unreviewed safety question. No changes to wires and termination boards on the Unit I B the TSs are required. The probability/consequences of accidents EDG. previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to satfety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

Page 3 of 23


Number DFWWO 903448 99-00155 This DFWO allowed the plant to resume This does not introduce an unreviewed safety question. No changes to

operation with SGN-PV 1128 in its current the TSs arc required. The probahility/consequences of accidents position of not closed. Field troubleshooting previously evaluated have not been increased. The probability/ demonstrated ihat the valve is pennitting consequences of a malfunction to equipment important to safety have not delivery of N2 at a substantial flow rate. This been increased. The possibility of a different type of accident or was a temporary condition scheduled to be malfunction has not been created. The margin of safety as del.fined in the reworked during U I R9. basis of the TSs has not been reduced.

DMWO 702183 95-00126 This DMWO replaced the Meteorological This does not introduce an unreviewed safety question. No changes to tower data transmission digital processor sub- TSs are required. The probability/consequences of an accident previoLIsly system with a Campbell Scientific CR- 10 evaluated have not been increased. The probability/consequences of a Datalogger system. malfunction of equipment important to safety have not been increased.

The possibility of an accident/malfunction of a different type has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced.

DMWO 712500 97-00202 This DMWO replaced the ABB High Speed This does not introduce an unreviewed safety question. No Changes to AR relays (SSOX-A&B) in the TSs are required. The probability/consequences of an accident previously Subsynchronous Oscillation (SSO) protection evaluated have not been increased. The probability/consequences of a circuit in the MA system with redundant malfunction of equipment important to safety have not been increased. Lockout Relays. The possibility of an accident/malfunction of a different type has not been

introduced. The margin of safety as defined in the basis of the TSs has not been reduced.

DMWO 725497 96-00054 This DMWO provided setpoints for the SI This does not introduce an unreviewed safCty question. No Changes to system valves installed under DCP 1,2,3-XJ- TSs are required. The probability/consequences of an aCcidetit pieoUSiusly SI- 192. evaluated have not been increased. The probability/consequenccs of a

inalfunction of equipment important to safety have not been increased. The possibility of an accident/malfunction of a different type has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced.

DMWO 736618 96-00004 This DMWO allowd the use of a This does not introduce an unrevxiewed safety question. No changes to polypropylene- lined valve in place of Kynar- TSs are required. The probability/consequences of an accident previously lined valve in the caustic isolation valves to the evaluated have not been increased. The probability/consequetices of a chemical waste neutralization tanks. malfunction of equipment important to safety have not been increased.

The possibility of an accident/malfunction of a different type has not been introduced. The margin of safety its defined in the basis of the TSs has not been reduced.

Page 4 of 23

January 1999 - December 1999 - PVNGS 50.59 ReportDoc Type Doc Number Log Description Summary

Number DMWO 749681 96-00150 This DMWO installed wiring changes in This does not introduce an unrevicwcd safety question. No changes to

accordance with DM disposition. Site Mod. the TSs arc required. The probability/consequences of'accidents 1,2,3-SM-HD-001 was issued to install an previously evaluated have not been increased. The probability/ Agastat Relay Model E7012PC-002 in consequences of a malfunction to equipment important to safety have not EPGAL3ICI & EPGBL32CI to initiate a time been increased. The possibility of a different type of accident or delay in the alarm contact. The DMWO malfunction has not been created. The margin of safety as defined in the recommended a 3 second time delay, however, basis of the TSs has not been reduced. the pre-trip alarm reset time has been determined to be approximately 3 seconds. To prevent the problem of resetting, tile time delay will be set for 5 seconds.

DMWO 758708 96-00135 This DMWO installed a new RFM Mast This does not introduce an unreviewed safety question. No changes to Camera which will be a stationary, non-tilting the TSs are required. The probability/consequences of accidents camera. The existing camera can only be previously evaluated have not been increased. The probability/ positioned by tiling the camera 60 degrees, consequences of a malfunction to equipment important to safety have not severely limiting the viewing options the RFM been increased. The possibility of a different type of accident or operator has available to him. Also, the malfunction has not been created. The margin of safety as defined in the present design has no pan (side to side) basis of the TSs has not been reduced. viewing capabilities.

DMWO 762028 97-00040 This DMWO added new anode beds/rectifiers This does not introduce an unreviewed safety question. No changes to in Gas Turbine Generator and Units I & 2 DG the TSs arc required. The probability/consequences of accidents fuel tank line areas and replenished/replaced previously evaluated have not been increased. The probability/ anode beds in other Unit 1, 2 & 3 areas, consequences of a malfunction to equipment important to sadcty have not


DMWO 782774 98-00147 This DMWO added a high point vent line on This does not introduce an unreviewed safety question. No changes to the charging pump suction line, downstream of the TSs are required. The probability/consequences of accidents check valve 2PCIIAVI 18. previously evaluated have not been increased. The probability/


98-00190 This DMWO will provide alarm indication to the Control Room Operators that the ESFAS function of Dampers M-HJB-MOI/M55, M02 and M03 have been challenged whenever the remote shutdown handswitch (CS-2) and the control board handswitch (CS- 1) are maintained in the operable position simuIultaneously.

This does not introduce an unrevicwcd safety question. No changes to tile TSs are required. The probability/consequences of accidents previously evaluated have not been increased. The probability/ consequences of a malfunction to equipment iiiiportant to salcty hasec not been increased. The possibility of a different type of accidet or malfunction has not been created. The margin of safety as delincd in the basis of the TSs has not been reduced.

Pagc 5 of 23

DMWO 793823


Number DMWO 800082 98-00106 This DMWO installed permanent flow This does not introduce an unreviewed safety question. No changes to

instrumentation at the discharec of the spent TSs are required. The probahility/consequences of an accident previously fuel pool cooling pumps to support pump and evaluated have not been increased. The probability/consequences of a system testing and accurate flow rate malfunction of equipment important to safety have not been increased. determination. The possibility of an accident/malfunction ol'a different type has not been

introduced. The margin of safety as defined in the basis of the TSs has not been reduced

DMWO 801398 98-00166 This DMWO replaced the existing hardware This does not introduce an unreviewed safety question. No changes to and software of the Plant Multiplexer System the TSs are required. The probability/consequences of accidents (PMUS) with new equipment in order to previously evaluated have not been increased. The probability/ improve system reliability and availability. consequences of a malfunction to equipment important to safety have not


DMWO 805020 97-00167 This DMWO modified the UV protection in This does not introduce an unreviewed safety question. No changes to switchgears ENANSO 1, ENANS02, ENBNSO I TSs are required. The probability/consequences of an accident previously and ENBNS02. evaluated have not been increased. The probability/consequences of a

malfunction of equipment important to safety have not been increased. The possibility of an accident/malfunction of a different type has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced

DMWO 805371 97-00250 This DMWO revised the scipoint for RCP This does not introduce an unreviewed safety quIestion. No langes to thrust bearing oil level alarrm. TSs are required. The probability/consequenccs of an accident piesviousiy

evaluated have not been increased. The probability/consequences of a malfunction of equipment important to safety have not been incieased. The possibility of an accident/malfunction of a different type has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced

DMWO 810357 97-00242 This DMWO separated a common condensate This does not introduce an unreviewed safety question. No changes to discharge line on the Diesel Generator Starting TSs are required. The probability/consequences of an accidelnt previously Air Dryer. evaluated have not been increased. The probability/consequences of a

malfunction of equipment important to safety have not been incireased. The possibility of an accident/iial function of a different type has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced

Page 6 of 23


Number DMWO 812700 97-00249 This DMWO installed Bailey AV-2 positioners This does not introduce an unreviewed safety question. No clianges to

on the steam bypass control valves. TSs are required. The probability/consequences of an accident previously evaluated have not been increased. The probability/conscquences of a malfunction of equipment important to safety have not been increased. The possibility of an accident/malfunction of a different type has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced

DMWO 820829 98-00185 This DMWO replaced a carbon steel elbow This does not introduce an unreviewed safety question. No changes to with a stainless steel elbow due to the TSs are required. The probability/consequences of accidents errosion/corrosion considerations, previously evaluated have not been increased. The probability/


DMWO 822501 97-00263 This DMWO installed a live load packing This does not introduce an unreviewed safety question. No changes to system on valves 13JEDNLVO501 and 502. TSs are required. The probability/consequences of an accident previously

evaluated have not been increased. The probability/consequences of a malfunction of equipment important to safety have not been increased. The possibility of an accident/malfunction of a different type has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced

DMWO 835394 98-00170 This DMWO modified the temperature and This does not introduce an unreviewed safety question. No changes to pressure alarm set points associated wvith the the TSs are required. The probability/consequences of accidents Sulzer Bingham seals, previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to saleti have not been increased. The possibility of a different type of accident or malfunction has not been created. The niargin of safety as defined in the basis of the TSs has not been reduced.

DMWO 836726 99-00036 This DMWO installed target nests for RCS This does not introduce an unreviewed safety question. No changes to templating in support of steam generator the TSs are required. Tl'he probability/consequences of accidents replacement in Unit 2. previously evaluated have not been increased. The probability/


Page 7 of 23


Number DMWO 837246 98-00100 This DMWOL added replacement anode beds This docs not introduce an unreviewed safety question. No changes to

throughout Units 1, 2 and 3 as required. TSs arc required. The probability/consequences of an accidcnt previously evaluated have not been increased. The probability/conscquncCCs of a malfunction of equipmcnt important to safety have not been increased. The possibility of an accident/malfunction of a different type has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced

DMWO 839733 98-00150 This DMWO installed essential and emergency This does not introduce an unreviewed safety question. No changes to fighting to support required Appendix R the TSs are required. The probability/consequences of accidents manual operations within the 'B' train previously evaluated have not been increased. The probability/

emergency diesel generator cabinet, consequences of a malfunction to equipment important to safety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

DMWO 841605 98-00091 This DMWO added a means of disconnecting This does not introduce an unreviewed safety question. No changes to the 480 VAC power to crane MZANG20 from TSs are required. The probability/consequences of an accident previously its pendant per OSHA regulations. The evaluated have not been increased. The probability/consequences of a modification installed a 3-phase mainline malfunction of equipment important to safety have not been increased. contactor with pushbutton control to the The possibility of an accident/malfunction of a different type has not been existing control panel and pendant. introduced. The margin of safety as defined in the basis of the I'Ss has not

been reduced DMWO 849153 98-00130 This DMWO upgraded pipe supports This does not introduce an unreviewed safety question. No Changes to

23CH037HO0A and -HO0B and a short section the TSs are required. The probability/conscquences of accidCnts of pipe to enhance the design to support higher previously evaluated have not been increased. The probability/ operating loads. consequences of a malfunction to equipment important to satcty have not

been increased. The possibility of a different type of accidcnt or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

DMWO 852608 98-00141 This DMWO modified blowdown This does not introduce an unreviewed safety question. No changes to demineralizcr water piping and air piping to the TSs are required. The probability/consequences of accidents remo ve a rupture disk and installed a thermal previously evaluated have not been increased. The probability/ relief valve. consequences of a malflunction to equipmnent important to safety have not

been increased. The possibility of a different type of accident 01r malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

Page 8 of 23


Number DMWO 854094 98-0199 This DMWO changed the gas turbine This does not introduce an unreviewed safety question. No changes to

generators PLC Ladder Logic. the TSs are required. The probability/consequences of accidcnts previously evaluated have not been increased. The probability/ consequences of a malfunction to equipment important to sal ety have not been increased. The possibility of a different type of accident or malfunction has not been created. The mar-in of safety as deflied in the basis of the TSs has not been reduced.

DMWO 860319 99-00015 This DMWO replaced the existing Gas This does not introduce an unreviewcd safety question. No changes to Turbine Generator (GTG) Displays with the TSs are required. The probability/consequences of accidcnts upgraded displays, previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to salety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

DMWO 869763 99-00030 This DMWO installed a sacrificial anode This does not introduce an unreviewed safety question. No changes to system for the flume beam on the cooling the TSs are required. The probability/consequences of accidents towers in Units 1, 2 and 3. previously evaluated have not been increased. The probability/


DMWO 870365 99-00041 This DMWO reduced the existing CSS header This does not introduce an unreviewed safety question. No changes to low water level alarm selpoint from the the TSs are required. The probability/conseqtiences of accidents existing value of 1 15'-6" to 144' to align the previously evaluated have not been increased. The probability/ alarm setpoint with the TS requirement of 1 13'. consequences of a malfunction to equipment important to satfety have not


DMWO 871872 99-00029 This DMWO replaced carbon steel piping This does not introduce an unreviewed safety question. No changes to components with stainless steel clue to the TSs are required. The probability/consequences of accidents erosion/corrosion considerations. previously evaluated have not been increased. The probability/


Page 9 of 23


Number DMWO 884728 99-00086 This DMWO installed a new sample valve on This does not introduce an unieviewed safety question. No changes to

existing Secondary system saiiiple lines (used the TSs are required. The probability/conscqucnces of accidcnts to sample Feedwater). previously evaluated have not been increased. The probability/


EDC 99-00031 99-00006 This Paper Change Only EDC allowed the use This does not introduce an unreviewed safely question. No changes to of alternative iiaterials for components in or the TSs are required. The probability/consequences of accidents connected to the Bulk Acid and Acid Day previously evaluated have not been increased. The probability/ tanks. consequences of a malfunction to equipment imnportant to safety have not

been increased. The possibility of a different type of accident or inalfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

EDC 99-00094 99-00035 This EDC revised inaterial class sheets DADA, This does not introduce an unreviewed safety question. No Changcs to GADA, and added HADB to allow substitution the TSs are required. The probability/consequences of accidents of chrome-inoly pipe for carbon steel pipe in previously evaluated have not been increased. The probability/ applications where erosion/corrosion is consequences of a inalfunction to equipment important to safety have not occurring, been increased. The possibility of a different type of accident or

malfunction has not been created. The mnargin of safety as defined in the basis of the TSs has not been reduced.

EDC 99-00373 99-00059 This Paper Only EDC added a note to pipe This does not introduce an unreviewed safety question. No changes to whip drawings 02-C-ZCS-806 and 02-C-ZCS- the TSs are required. The probability/consequences of accidents 809 that indicated the u-bolts which are show, n previously evaluated have not been increased. The probability/ on the drawing are not required to be installed, consequences of a mallfunction to equipiient iitiportant to safety have not

been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined In the basis of the TSs has not been reduced.

E-PLAN Rev. 20 98-00087 This E-Plan revision made changes to This does not introduce an unreviewed safety question. No changes to accurately reflect the minimnumn RP E-Plan TSs are required. The probability/consequences of an accident preVIOUsly staffing requireinents as set forth in NUREG- evaluated have not been increased. The probability/consequences of a 0654/FEMA-REPI-1, Rev. 1. malfunction of equipment important to safety have not beeni incicased.

The possibility of an accident/mal function of a diffeient type has not bcen introduced. The margin of safety as defined in the basis of the TSs has not been reduced

Pae 10 oif 23


Number MEE 02460 99-00124 This Material Engineering Evaluation (MEE) This does not introduce an unrevicwed safety question. No changes to

replaced carbon steel piping components with the TSs are required. The probability/consequences of accidents stainless steel due to errosion/corrosion previously evaluated have not been increased. The probability/ considerations. consequences of a malfunction to equipment important to safety have not


MEE 02480 99-00161 This MEE documented an "Accept As Is" This does not introduce an unreviewed safety question. No changes to disposition for several cable runs of installed the TSs are required. The probability/consequences of accidents wire that did not meet the flammability previously evaluated have not been increased. The probability/ requirements of IEEE-383. consequences of a malfunction to equipment important to safety have not


PROC 30DP-OWMI2.R02 98-00127 This Procedure revision removed the This does not introduce an unreviewed safety question. No changes to requirement for personnel logging from Zone TSs are required. The probability/consequences of an accident previously Ill areas. evaluated have not been increased. The probability/consequences of a

malfunction of equipment important to safety have not been increased. The possibility of an accidentlnalfunction ofa different type has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced

PROC 40OP-9CPO1 99-00087 This Procedure revision changed the normal This does not introduce an unreviewed safety question. No changes to valve position for CPN-V023 and CPN-V024 the TSs are required. The probability/consequences of accidents to align Radiation Effluent Monitor SQB-RU- previously evaluated have not been increased. The probability/ 34 to sample the Power Access Purge exhaust consequences of a malfunction to equipment important to safety have not line. been increased. The possibility of a different type of accident or

malfunction has not been created. The margin of safety as delined in the basis of the TSs has not been reduced.

PROC 40oP-9EDO 1 99-00013 This procedure revision allowed an alternate This does not introduce an unreviewed safety question. No changes to method for maintaining level in the Unit 3 El) the TSs arc required. The probability/consequences of accidents system Blowdown Stack (BDS). The BDS had previously evaluated have not been increased. The probability/ an obstruction in the normal drain line consequences of a malfunction to equipment important to salety have ntot preventing normal level control. been increased. The possibility of a different type of accident or

malfunction has not been created. The margin of safety as delfiiied in the basis of the TSs has not been reduced.

Pace II of 23

January 1999 - December 1999 - PVNGS 50.59 Report Doe Type Doc Number Log Description Summary

Number PROC 40OP-9S102 99-00069 This procedure revision allowed for This does not introduce an unreviewed safety question. No changes to

pressurization of HPSI hot legs for the TSs are required. The probability/consequences of accidents pressurization walkdown. previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to safely have not been increased. The possibility of a different type of accident or nialfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

PROC 40oP-9ZZI2 99-00057 This Procedure change allowed the batching of This does not introduce an unreviewed safety question. No changes to boric acid solution to the RWT using the the TSs are required. The probability/consequences of accidents RMWPs during refueling, previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to salety hav e not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

PROC 4xAL-xRK5A 99-00078 This Procedure revision allowed the use of a This does not introduce an unreviewed safety question. No changes to redundant FBEV train to reduce airborne the TSs are required. The probability/consequences of accidents radioactivity levels in the Fuel Building previously evaluated have not been increased. The probability/ following a design basis LOCA. consequences of a malfunction to equipment important to safety have not


PROC 73TI-3EDOI 99-00076 This new Procedure raised the level in the LIP This does not introduce an unreviewed safety question. No changes to fccdwatcr heater 6A while nionitoring tile TSs are required. The probability/consequences of accidents perf'orlmance parameCters. previously evaluated have not been increased. The probability/

consequences of at malfunction to equipilcnt imp portant to satety have not been increased. The possibility of a different type of accident or malfunction has not been created. The inargin of safety as defined in the basis of the TSs has not been reduced.

PROC 73T1-9MB01 99-00115 This is a new Procedure, "Main This does not introduce an unreviewed safety question. No changes to Generator/Exciter Model Verification Test the TSs are required. The probability/consequences of accidents Procedure." The purpose of the tests to be previously evaluated have not been increased. The probability/ performed validate the Main Generator and consequences of a malfunction to equipment important to salcty have not Exciter model parameters. been increased. The possibility of a different type of accident or


Page 12 of"23


Number PROC 74OP-9SP0 I.R5 99-00140 This Procedure revision added two 1/2' hoses This does not introduce an unreviewed safety question. No changes to

to feed each spray pond with chemicals, the TSs are required. The probability/consequences of accidents previously evaluated have not been increased. The probability! consequences of a nialfunction to equipment important to safety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

PROC 74TI-9FW02 99-00095 This Procedure allowed for the placement of a This does not introduce an unreviewed safety question. No changes to portable corrosion product monitor into close the TSs are required. The probability/consequences of accidents proximity to the feedwatcr lines in order to previously evaluated have not been increased. Tile probability/ determnine if improved sampling for iron consequences of a malfunction to equipment important to safety hasve not transport in the feedwater could be achieved. been increased. The possibility of a different type of accident or


PROC 791S-9SMOI .R9 98-00196 This Procedure was revised to account for a This does not introduce an unreviewed safety question. No changes to non-functioning playback unit (SMR-102). the TSs are required. The probability/consequences of accidents

previously evaluated have not been increased. The probability/ consequences of a malfunction to equipment important to safety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in tile basis of the TSs has not been reduced.

SARCN 98-F070 98-00109 This niodification replaced the CS and IPS I This does not introduce an unreviewked safety question. No changes to miini-flow valv e ritotor operators. TSs are required. The probability/consequences of an accidentt previously

evaluated have not been increased. The piobability/consequCnces of a malfunction of equipment important to safety have not been incircased. The possibility of an accident/malfunction of a different type has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced

SARCN 98-F087 98-00162 This SARCN was the result of the Licensing This does not introduce an unreviewed safety question. No changes to Basis Validation (LBV) Project. This SARCN the TSs are required. The probability/consequences of accidents updated Chapter 6 and Chapter 15, to correct previously evaluated have not been increased. The probability/ errors of fact and descriptive material related consequences of a malfunction to equipment i mportant to s'fety have not to the previously postulated single failure of been increased. The possibility ofa different type of accident oi one breaker to achieve a fast transfer to a malfunction has not been created. The margin of safety as defined it the backup upower supply. It also included new basis of the TSs has not been reduced. LOCV and FWLB analyses.

Page 13 of2 3


Number SARCN 98-F092 98-00191 This SARCN added an exception statement to This does not introduce an unreviewed safety question. No changes to

section 1.8, response to Reg. Guide 1.12. the TSs are required. The probability/consequences of accidents previously evaluated have not been increased. The probability/ consequences of a malfunction to equipment important to safety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

SARCN 98-F098 & 98-F103 98-00138 These SARCN revisions were a result of This does not introduce an unreviewed safety question. No changes to CRDR 1-8-0368. The revision included two the TSs are required. The probability/consequences of accidents major elements. First, section 15.6.2 table and previously evaluated have not been increased. The probability/ text was revised to omit any reference to the consequences of a malfunction to equipment important to salety have not low letdown flow, Auxiliary Building high been increased. The possibility of a different type of accident or humidity, and VCT low level alarms, malfunction has not been created. The margin of safety as defined in the Secondly, the CVCS FEMA Table 9.3-7 Item basis of the TSs has not been reduced. 14b was revised to say that a low flow indication on FI-202 may be used to detect the malfunction.

SARCN 98-F104 98-00152 This SARCN was a result of DMWO 847105, This does not introduce an unreviewed safety question. No changes to which replaced existing Target Rock the TSs are required. The probability/consequences of accidents Corporation Dual Pilot Assisted Solenoid previously evaluated have not been increased. The probability/ Operated Valves (seal wvehcdd or bolted consequences of a malfunction to equipment important to safety have not bonnet) on an as needed basis with Target been increased. The possibility of a different type of accident or Rock Corporation Single Pilot Assisted Bolted malfunction has not been created. The mai-gin of safety as defined in the Bonnet Solenoid Operated Valves. The basis of the TSs has not been reduced. UFSAR was updated to reflect the new specification and code year for the procurement of the single pilot SOV from Target Rock Corporation.

SARCN 98-F109 99-00065 This SARCN made the licensing bases This does not introduce an unreviewed safety question. No changes to consistent with the design bases of the plant. the TSs are required. The probability/consequences of accidents Calculations 13-NC-ZY-241 and 13-NC-ZY- previously evaluated have not been increased. The probability/ 235 have been revised to reflect as built HVAC consequences of a malfunction to equipment important to safety have not flow condition of these facilities, been increased. The possibility of a different type of accident or


Page 14 of 23


Number SARCN 98-Fl 11 98-00169 This SARCN was a result of EDC 98-00762. This does not introduce an unreviewed safety question. No changes to

As part of the Design Basis Manual validation the TSs are required. The probability/consequences of accidents effort, a discrepancy was identified for the previously evaluated have not been increased. The probability/ indicator scale range for components consequences of a malfunction to equipment important to safety have not I/2/3JHFAPDI0070. been increased. The possibility of a different type of accident or


SARCN 98-Fl 12 97-00137 This SARCN was incorporated as a result of This does not introduce an unreviewed safety question. No changes to DMWO 695386 which installed a second TSs are required. The probability/consequences of an accident previously channel (RE- 141 B) of radiation detection for evaluated have not been increased. The probability/consequences of a the condenser air removal system. malfunction of equipment important to safety has not been icrieased. Tlie

possibility of an accident of a different type or the possibility of a different type of malfunction has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced

SARCN 98-Fl 14 98-00211 This SARCN was a result of DMWO 789942 This does not introduce an unreviewed safety question. No changes to which deleted instruments JCHNFI0206 (H2) the TSs are required. The probability/consequences of accidents and JCHNFI0215 (N2). previously evaluated have not been increased. The probability/


SARCN 98-t:119 99-00068 This SARCN corrected and clarified This does not introduce an unreviewed safety question. No Cihanges to information contained in section 9.5.7, DG the TSs are required. The probability/consequences of accidents Lubrication System. previously evaluated have not been increased. The probability/


98-Ff31 98-00198 This SARCN was incorporated as a result of the revision to Calculation 13-JC-SI-202. Table 8.3-1 was revised to reflect larger low pressure safety injection pump loads.

This does not introduce an unreviewed safety question. No changes to the TSs are required. The probability/consequences of accidents previously evaluated have not been increased. The probability/ consequences of a malfunction to equipment important to safcty have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as dclfmed in the basis of the TSs has not been reduced.

Pace 15 of 23

SARCN


Number SARCN 98-Fl32 98-00204 This SARCN revised tables 9.2-4 and 9.2-9 to This does not introduce an unreviewed safety question. No changes to

reflect as-built design information for the tile TSs are required. The probability/consequences of accidcnts chemical addition tanks in the EW and NC previously evaluated have not been increased. The probability/ systems. consequences of a inalfunction to equipment important to salety have not

been increased. The possibility of a different type of accident oi malfunction has not been created. The margin of safety as dcfied in the basis of the TSs has not been reduced.

SARCN 98-1`133 99-00055 This SARCN changed the PSV Blowdown This does not introduce an unreviewed safety question. No changes to Pressure and Blowdown Rate described in the the TSs are required. The probability/consequences of accidents UFSAR. previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to safety have not been increased. The possibility of a different type of accident oi inalfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

SARCN 98-Fl34 98-00205 This SARCN revised paranieters of the This does not introduce an unreviewed safety question. No changes to original design operating configuration of the the TSs are required. The probability/consequences of accidents DW System. previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to safety have not been increased. The possibility of a different type of accidett or imalfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

SARCN 98-F136 98-00210 This SARCN was a result of new revisions 03, This does not introduce an unreviewed safety question. No changes to 05, 04 to Calculation 01, 02, 03-EC-MA-22 1. the TSs are required. The probability/consequences of accidents The revision to the calculations affected previously evaluated have not been increased. The probability/ UF-SAR table 8.3-3. consequences of a malfunction to equipment important to surety have not

been increased. The possibility of a different type of accidett or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

SARCN 98-Fl137 98-00209 This SARCN made the following revisions to This does not introduce an unreviewed safely question. No changes to the UFSAR: 1) Revised Table 6.2.4-2 to the TSs are required. The probability/consequences of accidents increase stroke time for RDA-UV23 from 30 previously evaluated have not been increased. The probability/ seconds to 47.5 seconds, and: 2) Revised table consequences of a malfunction to equipmnent imnportant to stIlety have not 7.3-1 B to annotate greater than/less than 59 been increased. The possibility of a different type of accident or second response time for RDA-UV23 on malfunction has not been created. The marigin of safety as defined in the CIAS. basis of the TSs has not been reduced.

Page 16 1t)23


Number SARCN 99-F002 99-00027 This SARCN updated the COLSS process This does not introduce an unreviewed safety qucstion. No changes to

testing description to reflect the current the TSs are required. The probability/consequences of accidents process. previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to safety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of salety as defined In the basis of the TSs has not been reduced.

SARCN 99-F003 99-00017 This SARCN revised the UFSAR to reflect the This does not introduce an unreviewed safety question. No changes to

Radiation Protection department's new the TSs are required. The probability/consequences of accidents organizational structure. previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to safety haxe not been increased. The possibility of a difterent type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

SARCN 99-F020 99-00052 This SARCN revised the UFSAR to be This does not introduce an unreviewed safety question. No changes to consistent with changes made to the the TSs are required. The probability/consequences of accidents Equipment Qualification Program Manual previously evaluated have not been increased. The probability/ (EQPM). consequences of a malfunction to equipment important to safety have not


SARCN 99-F021 99-00064 This SARCN corrected contradicting This does not introduce an unreviewed safety question. No changes to statements in the UFSAR regarding the the TSs are required. The probability/consequences ot accidents limiting event for maximum pressurizer level previously evaluated have not been increased. The probability/ and updates the information of the PSV consequences of a malfunction to equipment important to safety have not operability, been increased. The possibility of a different type of accident or


SARCN 99-F029 99-00073 This SARCN revised UFSAR section 8.3.1.4.3 This does not introduce an unreviewed safety question. No changes to to include the design engineering evaluations the TSs are required. The probability/consequcnces of accidents in case of control and/or instrumentation cable previously evaluated have not been increased. The probability/ trays and conduit overfill, consequences of a malfunction to equipment important to salety ha [l not


Page 17 of 23


Number SARCN 99-F049 99-00098 This SARCN revised the UFSAR to reflect the This does not introduce an unreviewed safety question. No changes to

latest "Load on Bus (Amperes)" values, based the TSs are required. The probability/consequences of accidents on the revised calculation. previously evaluated have not been increased. The probability/


SARCN 99-F050 99-00139 This SARCN clarified sections that describe This does not introduce an unreviewed safety question. No changes to the control system response following a load the TSs arc required. The probability/consequences of accidcnts rejection, previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to safety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as deIined iii the basis of the TSs has not been reduced.

SARCN 99-F051 99-00138 This SARCN revised the definitions of the This does not introduce an unreviewed safety question. No changes to Refueling Water Tank (RWT) low and low- the TSs are required. The probability/consequences of accidents low level alarm functions, previously evaluated have not been increased. The probability/

consequences of a mnalfunction to equipment important to safety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

Security Rev. 23 99-00107 This Security Plan revision was issued to This does not introduce an unreviewed safety question. No changes to Plan reflect the removal of security detection the TSs are required. The probability/consequences of accidents

equipment mounted on the TSC building. previously evaluated have not been increased. The probability/ consequences of a malfunction to equipment itiportant to saicty have not been increased. The possibility of a different type of accident or nial function has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

13-PN-294 99-00081 This Technical Specification created a design specification to provide approved leak seal methodology.

This does not introduce an unreviewed safety question. No changcs to the TSs are required. The probability/consequences of accidents previously evaluated have not been increased. The probability/ consequences of a malfunction to equipment important to saicty have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as dict'mned iii the basis of the TSs has not been reduced.

Pace 18 of23

SPEC


Number TECH 95-010 98-00132 This Technical Specification revision involved This does not introduce an unreviewed safety question. This change to SPEC the volume equivalents corresponding to SIT tile Technical Specifications has been approved by tile NRC. The

wide range level currently listed in section probability/consequences of accidents previously evaluated liave not been 3.5.2. increased. The probability/consequences of a malfunction to cquipnient

important to safety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

TMOD 01-99-SA-004 99-00016 This TMOD installed improved BOP ESFAS This does not introduce an unreviewed safety question. No changes to grounding scheme and electronic noise the TSs are required. The probability/consequences of accidents suppression components, previously evaluated have not been increased. The probability/


TMOD 01-CH-1999-015 & 99-00058 These TMODs installed a hose in parallel with This does not introduce an unreviewed safety question. No changes to 2-99-CH-009 CII-2 OX to increase the dilute flow available the TSs are required. The probability/consequences of accide,.nts

for the batching of boric acid solution to the previously evaluated have not been increased. The probability/ RWM . consequences of a malfunction to equipment important to safety have not


TMOD 01 -CL- 1999-014 99-00130 This TMOD installed connections to the This does not introduce an unreviewed safety question. No changes to outside containment flanges of the following tile TSs are required. The probability/consequences of accidents penetrations in order to pressurize, measure previously evaluated have not been increased. The probability/ and depressurize the containment structure to consequences of a malfunction to equipmilent imlpoitant to safety havc not accomplish the Integrated Leak Rate Test been increased. The possibility of a different type of accident or (ILRT). malfunction has not been created. The margin of safety as defitned in the

basis of the TSs has not been reduced.

TMOD 01-RC-1999-010 99-00108 This TMOD installed a PC based data This does not introduce an unreviewed safety question. No changes to acquisition system in the Control Room to the TSs are required. The probability/consequences of accidents record and analyze the following refueling previously evaluated have not been increased. The probability/ water level monitoring systemn signals, during consequences of a malfunction to equipment important to salety have not the U I outage: two narrow range level signals, been increased. Tile possibility of a different type of accident or two wide range level signals, and the two tral function has not been created. The margin of safety as defined in the shutdown cooling flow signals. basis of the TSs has not been reduced.

Page 19 o(f23


Number TMOD 2-99-PW-001 99-00024 This TMOD installed portable cooling towers This does not introduce an unrcviewcd safety question. No changes to

to provide cooling to one of the NC beat the TSs are required. The probability/consequences of an a:ccident

exchangers during PW system outage. previously evaluated has not been increased. The probability/ consequences of a malfunction to equipment important to saf ety has not been increased. The possibility of a different type of accident/malfunction has not been introduced. The margin of safety as defined in the basis of

the TSs has not been reduced.

TMOD 2-99-RC-007 99-00037 This TMOD installed a PC based data This does not introduce an unreviewed safety question. No changes to

acquisition system in the control room to the TSs are required. The probability/consequences of accidents

record and analyze the following refueling previously evaluated have not been increased. The probability/

water level monitoring system signals, during consequences of a malfunction to equipment important to satety liave not the U2 outage: two narrow range level signals, been increased. The possibility of a different type of accident or two wide range level signals, and the two malfunction has not been created. The margin of safety as defined in the

shutdown cooling flow signals. basis of the TSs has not been reduced.

TMOD 3-98-SH-015 98-00208 This TMOD disabled the number one (1) This does not introduce an unreviewed safety question. No Thanges to sensor heater and installed a load resistor to the TSs are required. The probability/consequences of accidents simulate the heater circuit allowing the number previously evaluated have not been increased. The probability/

five (5) sensor in the 'B' Train HSTC to remain consequences of a malfunction to equipment important to safety have not operational. been increased. The possibility of a different type of accident or


'IMOD A-99-GT-00 1 99-00011 This TMOD replaced the existing gas turbine This does not introduce an unreviewed safety question. No changes to generator (GTG) #2 display (model #T-36) the TSs are required. The probability/consequences of accidents

with an upgraded display (Model #T-37). previously evaluated have not been increased. The probability/ consequences of a malfunction to equipment important to salety have not been increased. The possibility of a different type of accident or


98- R012 99-00008 This TRM change clarified that the FBEVAS cross-train trips can be credited to maintain two trains of FBEVS operable.

This does not introduce an unreviewed safety question. No changes to the TSs are required. The probability/consequences of accidents previously evaluated have not been increased. The probability/ consequences of a malfunction to equipment important to salety have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

Paee 20 of 23

TRM


Number TRM 99-R002 99-00010 This TRM revision changed the allowable This does not introduce an unrcviewed safety question. No changes to

leakage for ECCS piping outside of the TSs are required. The probability/consequences of accidents containment from I ,pin to 3(XX) mil/hr. previously evaluated have not been increased. The probability/

consequences of a malfunction to equipment important to safetyv have not been increased. The possibility of a different type of accident or malfunction has not been created. The margin of safety as defined in the basis of the TSs has not been reduced.

TRM 99-R007 99-00083 This TRM revision is based on a revision to This does not introduce an unreviewed safety question. No changes to

Calculation 13-MC-SI-215.R3. The changes the TSs are required. The probability/consequences of accidents reflect the revision to HPSI system and pump previously evaluated have not been increased. The probability/ surveillance criteria, consequences of a malfunction to equipment important to safety have not


TS Bases 98-B025 98-00195 This TS Bases change revised section 3.7.10, This does not introduce an unreviewed safety question. No changes to Essential Chilled Water System, to remove a the TSs are required. The probability/consequences of accidents reference under the section for Action B. I and previously evaluated have not been increased. The probability/ B.2 for two EC trains Inoperable. The consequences of a malfunction to equipment important to safety have not reference could cause confusion regarding the been increased. The possibility of a different type of accident or appropriate actions to enter for the condition in malfunction has not been created. The margin of safety as defined in the which two EC traims are inoperable, basis of the TSs has not been reduced.

TS Bases 98-BO26 99-00020 This TS Bases change modified L(CO 3.7.5 to This does not introduce an unreviewed safety question. No changes to clarify PVNGS' position relative to which the TSs arc required. The probability/consequences of accidents condition to enter for a hypothetical condition previously evaluated hase not been increased. The probability/ involving and INOPERABLE steam supply to consequences of a malfunction to equilp)nernt important to S',lfcty a\se not AFA-P01 and another INOPERABLE fan. been increased. The possibility of a different type of accident or


TS Bases 98-B027 99-00007 This TS Bases chance revised the bases for This does not introduce an unreviewed safety question. No changes to LCO 3.3.9 to specifically state that both trains the TSs are required. The probability/consequences of accidents of the Control Room Essential Filtration previously evaluated have not been increased. The probability/ System (CREFS) receive an actuation signal consequences of a malfunction to equipment important to safety have not for a single, operable Control Room Essential been increased. The possibility of a different type of accident or Filtration Actuation Signal (CREFAS). malfunction has not been created. The margin of safety as defined iii the Theref'ore, both CREFS trains remain basis of the TSs has not been reduced. OPERABLE with one OPERABLE radiation monitor (either RU-29 or RU-30) and no BOPESFAS jumpers installed.

Page 21 of 23

January 1999 - December 1999 - PVNGS 50.59 Report Doe Type Doe Number Log Description Summary

Number TS Bases 98-B029 98-00203 This TS Bases revision incorporated guidance This does not introduce an unreviewed safety question. No changcs to

on what administrative controls would be the TSs are required. The probability/consequences of accidents established to ensure compliance with the previously evaluated have not been increased. The probability/ Actions ofl.CO 3.6.3. consequences of a malfunction to equipment important to saflcty have not

been increased. The possibility of a different type of accident oF malfunction has not been created. The margin of safety as deLfined in the basis of the TSs has not been reduced.

TS Bases 98-B029 98-00202 This TS Bases revision incorporated guidance This does not introduce an unreviewed safety question. No changes to on administratively controlling vents, drains, the TSs are required. The probability/consequences of accidents and test connections within containment previously evaluated have not been increased. The probability/ penetrations. consequences of a malfunction to equipment important to safety have not


TS Bases 98-B031 98-00015 This TS Bases revision changed the largest This does not introduce an unreviewed safety question. No changes to KW value for the DIG load rejection from 904 TSs are required. The probability/consequences of an accident previously KW to 936 KW. evaluated have not been increased. The probability/consequences of a

malfunction of equipment important to safety have not been increased. The possibility of an accident/malfunction of a different type has not been introduced. The margin of safety as defined in the basis of the TSs has not been reduced

TS Bases 98-B033 99-00002 The TS Bases for several surveillance This does not introduce an unreviewed safety question. No changes to requirements incorrectly stated that shutdown the TSs are required. The probability/cotisequCiecs of accidents conditions were required to allow performance previously evaluated have not been increased. The probability/ of the surveillance test. The change clarified consequences of a malfunction to equipment important to salety hase not the conditions required to perforti the testing. been increased. The possibility of a different type of accident or


TS Bases 99-BO03/99-FOO5 99-00018 This 50.59 is in support of TS Bases 99-B003 This does not introduce an unreviewed safety question. No changes to & SARCN and SARCN 99-F005. The TS Bases change the TSs are required. The probability/consequences of accidents

revised section B3.6.4 to clarify the previously evaluated have not been increased. The probability/ corresponding LCO values for containment consequences of a malfunction to equipment inmportant to salety hase not pressure. The SARCN change also clarified been increased. The possibility of a different type of accident or discussions of the containment low pressure tialfunction has not been created. The margin of safety as defined in the value given in section 6.2.1.1.3.6. basis of the TSs has not been reduced.

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Number TS Bases/ 98-B032/98-F082 98-00125 This 50.59 is in support of TS Bases 99-B032 This does not introduce an unreviewed safety question. No changes to SARCN and SARCN 98-F082. The revisions were the TSs are required. The probability/consequences of an accident previously

result of a revision to calculation I 3-NC-ZC- evaluated have not been increased. The probahility/consequences of a 233, Main Steam Line Break Inside malfunction of equipment important to safety have not been increased. Containment Pressure and Temperature The possibility of an accident/malfunction of a different typc has not been Analysis for Structure Integrity and Equipment introduced. The margin of safety as defined in the basis of the TSs has not Qualification. been reduced

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palo verde nuclear generating station (pvngs) units 1, 2 ... · 10 cfr 50.59 report...

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