forwards preservice insp relief request 14 for exemption from … · 2017. 9. 18. · curtis,n,n,...

REGULATOR'i NFORMATION DISTRIBUTION. S l'EM (RIDS)

AOCE'SSlON NBR:8208200195 DOC+DATE: 82/08/17 NOTARIZED: NO

FACIL:50-387 Susquehanna Steam Electric Station~ Unit 1i Pennsyl vaAUTH,NAME AUTHOR AFFILIATION

CURTIS,N,N, Pennsylvania Power 8 Light Co+RECIP ~ NAME RECIPIENT AFFILIATION

SCHNENCERgA, Licensing Branch 2

SUBJECT: Forwards Preser vice Insp Relief Request 10 for exemptionfrom ASME code requirement for volumetric exam of 100X ofcircumferential weld prior to initial startup.List of weldsto be scanned encl.

DISTRIBUTION CODE! B001S COPIES RECEIVED:LTR . ENCL SIZE ~

TITLE: PSAR/FSAR AMDTS and Related Correspondence

NOTES'OCKET05000387

REC IP IFNTID CODE/NAME

A/D LICENSNGLIC BR 02 LA

INTERNAL! El D/HOSEIE/DEP EPOS 35NRR/DE/CEB 11NRR/DE/GB 28NRR/DE/MEB 18NRR/DE/QAB 21NRR/DE/SEB 25NRR/DHFS/LQB 32NRR/DHFS/PTRB20NRR/DSI/ASB 27NRR/DS I/CSB 09NRR/DSI/ICSB 16NRR/DSI/RAB 22NRR/DST/LGB 33RGN1

EXTERNAL: ACRS 41DMB/DSS (AMDTS)LPDR 03NSIC 05

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RECIPIENTID CODE/NAME

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0~ ~: Pennsylvania Power 8 Light Company

Two North Ninth Street ~ Allentown, PA 18101 ~ 215 l 770-5151

Norman W. CurtisVice President-Engineering tt Construction-Nuclear215 I 770-5381

AUG 17 198Z

III

Mr. A. Schwencer, ChiefLicensing Branch No. 2U.S. Nuclear Regulatory CommissionWashington, D.C. 20555 .

SUSQUEHANNA STEAM ELECTRIC STATIONUNIT 81 PRESERVICE INSPECTION RELIEF REQUEST NO. 14ER 100450 FILE,899 j 899-M-191PLA-1239 Docket No. 50-387

Dear Mr. Schwencer:

Attr: 8208200195 820817 reservice Inspection Relief Request No. 14.Ace/ PDR ADOCK 05000387,, '. close an open Inspection and Enforcement6 PDR

'icensecvnuxl"IUn~ JnJ~lxl cave cvlluition must be closed prior to initialcriticality.If you have any questions, please call.

Very truly yours,

N. W. CurtisVice President-Engineering & Construction-Nuclear

CTC/mks

Attachment

cc: R. Perch — NRC

4~ 1

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PRESERVICE INSPECTIONRELIEF REQUEST f/14

I. IDENTIFICATION OF COMPONENTS:

Recirculation system Class I CorrosionResistant Clad (CRC) pipe welds.

Category BJ — Table IWB-2600, Item Number B4.5 - of the ASME Code,1974 Edition to Summer 1975 Addenda requires volumetric examination of100% of circumferential welds be performed completely as a preserviceexamination requirement prior to initial plant start-up.

ASME Appendix III, Winter 1975 Addenda, requires an angle beamexamination of the weld and required volume (the lesser of 4 t or 1")be performed scanning both normal and parallel to the

weld.'II.

BASIS FOR RELIEF:

Partial relief is required from the ASME Section XI examinationrequirements on the basis that an acceptable examination cannot beperformed in areas of the examination volume due to metallurgial andgeometric restraints using state of the art ultrasonic techniques.

IV. JUSTIFICATION:

1. The preservice integrity of the subject welds and corrosionresistant clad area has been established via extensive in-processNDE and satisfaction of ASME Section III requirements.

2. The obstructed areas are on the recirculation riser pipe sides ofthe joint where the corrosion resistant cladding (CRC), conformingto NUREG 0313, is the accepted method utilized to minimizesusceptibility to IGSCC.

3. 1he heat affected zone (HAZ) on the sweepolet/reducer side of thejoint does not conform to NUREG 0313 and requires future augmentedinservice inspections. This area is able to be examined from thefitting side of the joint and is, therefore, not obstructed bymetallurgical or geometric restraints. A preservice examinationhas been completed in this area.

4. A complete examination of the weld and required volume on theriser side of the joint has been performed scanning

45'ircumferentially(i.e. parallel with the weld).

5. Visual examination of the weld during system pressure testingwill be performed to detect for evidence of leakage.

6. The SSES leak detection system design conforms to NUREG — 0313.

Rev. 0 8/9/82

7. A complete preservice examination has been performed on weldVRR-B31-2-FNB13. %his weld may be routinely inspected todetermine inservice integrity.

ALTERNATE PROVZSIONS:

1. No alternate NDE methods are currently available to perform theseinspections.

2. PP&L will continue to monitor state of the art techniques fortheir applicability to this inspection.

3. For inservice inspection purposes, automated ultrasonic"surveillance" of the points is being pursued. That is, a trackmechanism with ultrasonic scanning capability will be mounted onthe pipe for the riser side axial inspection. The ultrasonic CRTscreen presentation will be continuously recorded via videotape orother permanent method. Subsequent scans will be compared againstthe original scan to determine the relative change in status ofthe welds.

Accessible welds will be scanned by this method usingnon-Susquehanna specific equipment prior to initial criticality.Final equipment design for greater accessibility is expectedcomplete January, 1983.

Rev. 0 8/9/82

WELD

IDENTIFICATION. ~.: NUMBER .:=

CONFIGURATION SCANOBSTRUCTED

NATURE.-OF-

OBSTRUCTION

% OF~ SCAN

OBSTRUCTED

VRR-B31-1-FWA10 Riser tosweepolet

0', 70 scanfrom thesweepolet.

side

Fittingconfiguration

45'xialscan fromriser side

Metallurgicaland geometricconditions

100%1

0'canfrom theriser side

Pitting topipe

transition


0', 70'canfrom the-..sweepoletside

Pittingconfiguration

45'xialscan fromthe riserside


100%


Fittingto pipe

transition

8%


0'0'canfrom thesweepoletside




100%

Rev. 0 '8/9/82

WELD

IDENTIFICATION. i-: NUMBER


NATURE~ -OF ~

OBSTRUCTION

4 OF~ ~ SCAN

OBSTRUCTED

0~ scanfrom theriser side

Fitting topipe

transition


0'0 scanfrom thesweepoletside

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side

.Fittingconfiguration


100962


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transition

VRR-B31-1-FWB10 Riser tosweepolet

0', 70'canfrom thesweepoletside


45~ axialscan fromthe riserside


100%3


Fitting topipe

transition

VRR-B31-1-FWB11 Riser tosweepolet

0', 70'canfrom thesweepoletside


Rev. 0 8/9/82

WELDIDENTIFICATION

NUMBER,:CONFIGURATION SCAN

OBSTRUCTED

NATURE- ~ OF ~

OBSTRUCTION

4 OF- -SCAN

OBSTRUCTED



100%


Fittingto pipe

transition

VRR-B31-1-.H&14 Riser tosweepolet

0'~ 70'canfrom thesweepoletside

Fitting-configuration

VRR-B31-1-PNA1 2 Riser toreducer

45'xialscan from

. the riserside *

0-'. scanfrom 'theriser

side'5'xial

" scan fromthe riserside

Metallurgicaland geometricconditions.

Fitting to. pipe-transition


50a4

eoa5


Fitting topipe

transition

VRR-B13-2-FWB1 2 Riser toreducer

45O axialscan fromthe riserside

Metallurgicaland geometricconditio'ns

60~5


Fitting topipe

transition

Rev. 0 -8/9/82,

'I ' 'I

V

WELDIDENTIFICATION

NUt93ER, '.


NATURE. ~ OF.

OBSTRUCTION

4 OF~ ~ SCAN

OBSTRUCTED

VRR-B31-1-FNA1 5

VRR-B31-1-FWA1 6

VRR-B31-1-FWAl7

VRR-B31-1-FWA1 8

VRR-B31-1-PWA19

VRR-B31-2-FWB 1 5

VRR-B31-2-PWB 1 6

VRR-B31-2-PWB 1 7

VRR-B31-2-F>NB 1 8

VRR-B31-2-FWB19

Riser tonozzle safe

ends


Side


side

O. D. Contour

I. D. Geometry Footnote 7

1. Examination completed. Numerous indications evaluated and attributed to i.d. geometry. One (1) indication unresolved.

2. O.D. contour conditions caused transducer contact difficulties making indications unresolvable.

3. Examination completed, however, numerous indications required extensive evaluation time.

4. Examination unresolvable scanning toward the weld. Examination completed scanning away from the weld.

5. Indications too extensive to evaluate for an area three (3) inches back from the fitting to pipe transition by 360'.

6. O.D. contour conditions cause a loss of transducer contact for 0.5 inches by 360'.

7. Examination completed. Numerous indications evaluated and attributed to i.d. geometry.

Rev. 0 '= 8/9/82

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INFORMATION COMPILED FROM CORRESPON-

DENCE AND FIELD MEASUREMENTS.

forwards preservice insp relief request 14 for exemption from … · 2017. 9. 18. · curtis,n,n,...

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