tm 55-1520-210-pmd.pdf

TM 55--1520--210--PMD

UH--1H/V and EH--1H/X AircraftPreventive Maintenance

Daily Inspection Checklist

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited

HEADQUARTERSDEPARTMENT OF THE ARMY

11 January 1983

C 11

TM 55--1520--210--PMD

URGENT

CHANGE HEADQUARTERSDEPARTMENT OF THE ARMY

NO. 11 WASHINGTON, D.C., 1111 April 2003



TM 55--1520--210--PMD, 11 January 1983, is changed as follows:

1. Remove and insert pages as indicated below. New or changed text material is indicated by a vertical bar in the margin.An illustration change is indicated by a miniature pointing hand.

Remove pages Insert pages

A and B A and B

19 and 20 19 and 20

2. Retain this sheet in front of manual for reference purposes.


___ Cover

11 and 12 11 and 12

C 11TM 55--1520--210--PMD

By Order of the Secretary of the Army:

DISTRIBUTION:To be distributed in accordance with Initial Distribution Number 311431, requirements for

TM 55--1520--210--PMD.

ERIC K. SHINSEKIGeneral, United States Army

Chief of Staff

OFFICIAL:

JOEL B. HUDSONAdministrative Assistant to the

Secretary of the Army

LesleyFE

0309203

C 10

TM 55--1520--210--PMD

URGENT

CHANGE HEADQUARTERSDEPARTMENT OF THE ARMY

NO. 10 WASHINGTON, D.C., 27 April 2001



TM 55--1520--210--PMD, 11 January 1983, is changed as follows:

1. Remove and insert pages as indicated below. New or changed text material is indicated by a vertical bar in the margin.An illustration change is indicated by a miniature pointing hand.

Remove pages Insert pages---------------- A and B3 and 4 3 and 49 through 14 9 through 1419 through 27/(28 blank) 19 through 23/(24 blank)



C 10TM 55--1520--210--PMD


DISTRIBUTION:To be distributed in accordance with Initial Distribution Number 1431, requirements for

TM 55--1520--210--PMD.

ERIC K. SHINSEKIGeneral, United States Army

Chief of Staff

OFFICIAL:

JOEL B. HUDSONAdministrative Assistant to the

Secretary of the Army

0110705

URGENTCHANGE

NO. 9

TM 55-1520-210-PMDC9


WASHINGTON, D. C., 23 February 1996

UH-lH/V and EH-1H/X AircraftPreventive Maintenance


TM 55-1520-210-PMD, 11 January 1983, is changed as follows:

1. Remove and insert pages as indicated below. New or changed text material is indicated by a vertical barin the margin. An illustration change is indicated by a miniature pointing hand.

Remove pages

1 and 29 through 1219 and 2023 and 24


DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

Insert pages

1 and 29 through 1219 and 20-------------

URGENTTM 55-1520-210-PMD

C 9


DENNIS J. REIMERGeneral, United States Army

Chief of StaffOfficial:

YVONNE M. HARRISONAdministrative Assistant to the

Secretary of the Army01311

DISTRIBUTION:To be distributed in accordance with DA Form 12-3 l-E, block no. 1431, requirements for TM

55-1520-210-PMD.

CHANGE

NO. 8 }URGENT

TM 55-1520-210-PMDC 8


WASHINGTON, D. C., 11 September 1992

UH-1H/V and EH-1H/X Aircraft

Preventive MaintenanceDaily Inspection Checklist


1. Remove and insert pages as indicated below. New or changed text material isindicated by a vertical bar in the margin. An illustration change is indicated by aminiature pointing hand.

Remove pages Insert pages

1 through 4 1 through 4

7 and 8 7 and 8

11 and 12 11 and 12

23 and 24 23 and 24


DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

URGENT

TM 55-1520-210-PMDC 8


Official:

GORDON R. SULLIVANGeneral, United States Army

Chief of Staff

MILTON H. HAMILTONAdministrative Assistant to the

Secretary of the Army02248

DISTRIBUTION:To be distr ibuted in accordance with DA Form 12-31-E, block no. 1431, requirements

for TM 55-1520-210-PMD.

URGENTCHANGE

N O . 7

TM 55-1520-210-PMDC 7


WASHINGTON, D.C., 14 AUGUST 1990


P r e v e n t i v e M a i n t e n a n c eD a i l y I n s p e c t i o n C h e c k l i s t


1. Remove and i n se r t pages a s i nd i ca t ed be low. N e w o r c h a n g e d t e x t m a t e r i a li s i n d i c a t e d b y a v e r t i c a l b a r i n t h e m a r g i n . A n i l l u s t r a t i o n c h a n g e i s i n d i c a t e db y a m i n i a t u r e p o i n t i n g h a n d .

Remove pages I n s e r t p a g e s

17 and 18 17 and 18- - - - 1 8 . 1 / 1 8 . 2

2 . R e t a i n t h i s s h e e t i n f r o n t o f m a n u a l f o r r e f e r e n c e p u r p o s e s .

TM 55-1520-210-PMDC 7


Official:

CARL E. VUONOGeneral, United States Army

Chief of Staff

THOMAS F. SIKORABrigadier General, United States Army

The Adjutant General

DISTRIBUTION:T o b e d i s t r i b u t e d i n a c c o r d a n c e w i t h D A F o r m 1 2 - 3 1 , PM requirements for UH-1H/

U H - 1 V H e l i c o p t e r , U t i l i t y ; E H - 1 H H e l i c o p t e r , E l e c t r o n i c C o u n t e r m e a s u r e ; E H - 1 XH e l i c o p t e r , E l e c t r o n i c C o u n t e r m e a s u r e a n d I n t e r c e p t .

URGENT

URGENT

CHANGE

NO. 6

TM 55-1520-210-PMDC 6


WASHINGTON, D.C., 29 January 1990


P reven t ive Ma in t enanceD a i l y I n s p e c t i o n C h e c k l i s t


1. Remove and i n se r t pages a s i nd i ca t ed be low. N e w o r c h a n g e d t e x t m a t e r i a l i s i n d i c a t e db y a v e r t i c a l b a r i n t h e m a r g i n . A n i l l u s t r a t i o n c h a n g e i s i n d i c a t e d b y a m i n i a t u r e p o i n t i n ghand.


3 and 4 3 and 417 and 18 17 and 1821 and 22 21 and 2223 through 26 2 5 b l a n k / 2 6

URGENT

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2. R e t a i n t h i s s h e e t i n f r o n t o f m a n u a l f o r r e f e r e n c e p u r p o s e s .


Official:

CARL E.VUONOGeneral United States Army

Chief of Staff

WILLIAM J. MEEHAN IIBrigadier General, United States Army


DISTRIBUTION:To be distributed in accordance with DA Form 12-31, PM requirements for UH-1H/UH-1V

Helicopter, Utility; EH-1H Helicopter, Electronic Countermeasure; EH-1X Helicopter,E l e c t r o n i c C o u n t e r m e a s u r e a n d I n t e r c e p t .

CHANGE

NO. 5

TM 55-1520-210-PMDC 5


WASHINGTON, D.C., 16 October 1989

UH-1H/V and EH-1X AIRCRAFT


T M 5 5 - 1 5 2 0 - 2 1 0 - P M D , 1 1 J a n u a r y 1 9 8 3 , i s c h a n g e d a s f o l l o w s :

1. Remove and inser t pages as indicated below. N e w o r c h a n g e d t e x t m a t e r i a l i si n d i c a t e d b y a v e r t i c a l b a r i n t h e m a r g i n . A n i l l u s t r a t i o n c h a n g e i s i n d i c a t e d b y am i n i a t u r e p o i n t i n g h a n d .


17 and 18 17 and 1821 and 22 21 and 222 7 / 2 8 2 7 / 2 8

2 . R e t a i n t h i s s h e e t i n f r o n t o f m a n u a l f o r r e f e r e n c e p u r p o s e s .

TM 55-1520-210-PMDC 5


Official:


Chief of Staff

WILLIAM J. MEEHAN IIBrigadier General, United States Army


DISTRIBUTION :To be distributed in accordance with DA Form 12-31, PM Maintenance requirements for

UH-1H/V Helicopter, Utility; EH-1H Helicopter, Electronic Countermeasure; EH-1H Helicopter,Electronic Countermeasure & Intercept.

CHANGE

NO. 4

URGENT

TM 55-1520-210-PMDC 4


WASHINGTON, D.C., 17 August 1988

UH-1H/V AND EH-1H/X AIRCRAFT

Preven t ive Ma in t enanceD a i l y I n s p e c t i o n C h e c k l i s t

TM 55-1520-210-PMD, 11 January 1983, i s changed as fol lows:

1. R e m o v e a n d i n s e r t p a g e s a s i n d i c a t e d b e l o w . N e w o r c h a n g e d t e x t t m a t e r i a l i s i n d i c a t e db y a v e r t i c a l b a r i n t h e m a r g i n . A n i l l u s t r a t i o n c h a n g e i s i n d i c a t e d b y a m i n i a t u r e p o i n t i n g h a n d .


13 and 14 13 and 1417 and 18 17 and 18

2 . R e t a i n t h e s e s h e e t s i n f r o n t o f m a n u a l f o r r e f e r e n c e p u r p o s e s .

T h i s i s a r e p r i n t o f c h a n g e 4 .

URGENT

TM 55-1520-210-PMDC 4


Official:

CARL E. VUONO,General, United States Army

Chief of Staff

R.L. DILWORTHBrigadier General, United States Army


DISTRIBUTION :To be dis t r ibuted in accordance with DA Form 12-31, P M r e q u i r e m e n t s f o r U H - 1 H / U H - 1 V H e l i c o p e r

Ut i l i t y ; EH-1H He l i cop te r , E l ec t ron i c Coun te rmeasu re ; EH-1X He l i cop te r , E l ec t ron i c Coun te rmeasu rea n d I n t e r c e p t .

CHANGE

No. 3

TM 55-1520-210-PMDC 3


WASHINGTON, D.C., 3 JUNE 1988

UH-1H/V and EH-1H/X AIRCRAFT


T M 5 5 - 1 5 2 0 - 2 1 0 - P M D , 1 1 J a n u a r y 1 9 8 3 , i s c h a n g e d a s f o l l o w s :

1. R e m o v e a n d i n s e r t p a g e s a s i n d i c a t e d b e l o w . N e w o r c h a n g e d t e x t m a t e r i a l i si n d i c a t e d b y a v e r t i c a l b a r i n t h e m a r g i n . A n i l l u s t r a t i o n c h a n g e i s i n d i c a t e d b y am i n i a t u r e p o i n t i n g h a n d .

Remove pages I n s e r t p a g e s9 and 10 9 and 1015 and 16 15 and 1619 and 20 19 and 20

2. R e t a i n t h e s e s h e e t s i n f r o n t o f m a n u a l f o r r e f e r e n c e p u r p o s e s .

TM 55-1520-210-PMDC 3


Official:


Chief of Staff



DISTRIBUTION:To be dis t r ibuted in accordance wih DA Form 12-31, PM Requirements for UH-1D/H/V/EH-1H

a i r c r a f t .

CHANGE

NO. 2

URGENT

TM 55-1520-210-PMDC 2


WASHINGTON, D.C. , 25 SEPTEMBER 1986


Preventive MaintenanceD a i l y I n s p e c t i o n C h e c k l i s t


1 . Remove and insert pages as indicated below. New or changed t e x t m a t e r i a l i s i n d i c a t e d b ya v e r t i c a l b a r i n t h e m a r g i n . An i l l u s t r a t i on change i s i nd i ca t ed by a min i a tu r e po in t i ng hand .


15 through 18 15 through 18

2 . Re t a in t he se shee t s i n f ron t o f manua l f o r r e f e r ence pu rpose s .

URGENT

TM 55-1520-210-PMDC 2


Official:

JOHN A. WICKHAM, JR.General, United States Army

Chief of Staff



DISTRIBUTION :T o b e d i s t r i b u t e d i n a c c o r d a n c e w i t h D A F o r m 1 2 - 3 1 , P M r e q u i r e m e n t s f o r U H - 1 H / V H e l i c o p t e r

Ut i l i t y ; EH-1H He l i cop te r , E l ec t ron i c Coun te rmeasu re ; EH-1X He l i cop te r , E l ec t ron i c Coun te rmeasu re &Intercept .

URGENT

CHANGE

NO. 1

TM 55-1520-210-PMDC 1


WASHINGTON, D. C., 19 March 1985


Preven t ive Ma in t enanceDa i ly In spec t ion Check l i s t


1 . Remove and in se r t pages a s i nd i ca t ed be low. New o r changed t ex t ma te r i a l i s i nd i ca t edb y a v e r t i c a l b a r i n t h e m a r g i n . A n i l l u s t r a t i o n c h a n g e i s i n d i c a t e d b y a m i n i a t u r e p o i n t i n ghand.


7 through 10 7 through 1015 through 22 15 through 22

2 . Re t a in t he se shee t s i n f ron t o f manua l f o r r e f e r ence pu rpose s .

URGENT

TM 55-1520-210-PMDC 1


Official:

JOHN A. WICKHAM, JR.General, United States Army

Chief of Staff

DONALD J. DELANDROBrigadier General, United States Army


DISTRIBUTION:To be distributed in accordance with DA Form 12-31, PM Requirements for UH-1D/H/V/EH-1H aircraft.

TM 55--1520--210--PMD

Change 11 A*Zero in this column indicates an original page.

LIST OF EFFECTIVE PAGES

Insert latest changed pages; dispose of superseded pages in accordance with regulations.

N0TE: On a changed page, the portion of the text affected by the latest change is indicated by a vertical line, or other change symbol,in the outer margin of the page. Changes to illustrations are indicated by miniature pointing hands. Changes to wiring diagrams areindicated by shaded areas.

Dates of issue for original and changed pages are:

Original 11 January 1983Change 1 19 March 1985Change 2 25 September 1986Change 3 3 June 1988Change 4 17 August 1988Change 5 16 October 1989

Change 6 29 January 1990

Change 7 14 August 1990

Change 8 11 September 1992

Change 9 23 February 1996

Change 10 27 April 2001

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LIST OF EFFECTIVE PAGES (CON'T)

1. Inspection Requirements. This manual contains completerequirements for daily inspection for UH-1H/V aircraft. It does notcontain instructions for repair, adjustment, or other means ofrectifying conditions, nor does it contain instructions fortroubleshooting to find causes for malfunctioning. Specifictolerances, limits, etc., can be found in the applicable maintenancemanuals. Use of the alphabetical index in the applicable manual willfacilitate locating the required information.

2. Maintenance Activities. The inspections prescribed by thismanual will be performed at specific periods by Aviation UnitMaintenance (AVUM) activities with assistance of AviationIntermediate Maintenance (AVIM) and Depot Maintenance activitieswhen required.

3. General Information.

a. The inspection requirements contained herein are stated insuch a manner as to establish what conditions are desired/undesired.Compliance with the provisions outlined herein is required in orderto assure that proper servicing has been accomplished and latentdefects are discovered and corrected before malfunctioning orserious trouble results. Inspection requirements are arranged, asnearly as possible, according to the manner in which they will beperformed. The requirements are divided into groups under areaheadings.

b. The inspection intervals designated herein will not beexceeded except in actual operational emergencies as explainedherein. It is the commander’s responsibility to determine (on

TM 55-1520-210-PMD

C9an individual aircraft basis) when inspection intervals may beexceeded. For this purpose, operational emergencies are conditionsof combat, or conditions of disaster which necessitate flight toevacuate aircraft or personnel. When aircraft are operated beyond thenormal inspection due-time because of such emergency situations,a Circled Red “X” status symbol, system, date, and fault/remarksmust be entered in Part I - Fault Information of DA Form 2408-13-1/2408-13-1-E (Aircraft Inspection and Maintenance Record) untilsuch time as the inspection is complete. Since safety may bejeopardized when inspections are delayed to meet emergencyrequirements, commanders will assure that the aircraft status symbolreverts to a Red “X” and that delayed inspections are accomplishedimmediately upon termination of the actual emergency. Whenunusual local conditions of environment, utilization, mission,experience of flight crew and maintenance personnel, periods ofinactivity etc., are encountered, the maintenance officer will, at hisdiscretion, increase the scope and/or frequency of maintenance orinspection as necessary to insure safe flight.

c. This manual may contain inspection requirements applicableto specific equipment not installed on your aircraft. Thoserequirements should be disregarded.

d. DA Form 2408-13-1/2408-13-1-E will be used to record alldeficiencies or shortcomings discovered during the inspection.

e. A 1-1/2 inch space between each area of inspection is beingprovided to allow insertion of additional inspection items as requiredby local command inspection procedures.

2

C 10

TM 55--1520--210--PMD 3

4. Special Instructions. A Preventive Maintenance Daily in-spection is accomplished after the last flight of the mission day,or prior to the first flight of the next mission day on which theaircraft is flown. The inspection consists of visual examinationand operational checks to determine that the aircraft cansafelyand efficiently perform the assigned mission.

5. Reporting Errors and Recommending ImprovementsYou can help improve this manual. If you find any mistakes orif you know of a way to improve the procedures, please let us

know. Mail your letter, DA Form 2028 (RecommendedChanges to Publications and Blank Forms), or DA Form2028--2 located in the back of the applicable aircraft mainte-nance manual (when using the 2028--2 from the maintenancemanual, insure the publication number and title refer to thisPMD) directly to Commander, U. S. Army Aviation and MissileCommand, ATTN: AMSAM--MMC--MA--NP, Redstone Arse-nal, AL 35898--5230. A reply will be furnished to you.

6. Inspection Areas Inspection areas are shown in Figure 1.

Figure 1. Inspection areas

4TM 55-1520-210-PMD

Area No. 1

Area No. 2

Area No. 3

Area No. 4

Area No. 5

Area No. 6

Nose Area

Cabin Exterior and LandingGear Left Side

Engine Area Left Side

Tailboom Area

Engine Area Right Side

Cabin Exterior and Land ingGear Right Side

All surfaces, components, and equipment in nosecompartment and on exterior ahead of crew doors.

All surfaces, components, and equipment on cabinexterior and underside between forward sides ofcrew doors and aft cabin walls. Includes land inggear, and forward fuel cell sump on cabin under-side. Includes compartment in pylon island belowmain transmission.

All surfaces, components, and equipmentassociated with engine installation, located aboveengine work deck and within engine cowling,tailpipe fairing and intake fairing.

All surfaces, components and equipment locatedin or on the tailboom and vertical fin. Including ac-cess compartments below engine work deck and aftof cabin walls.

All su r f ace s , components, and equipmentassociated with engine installation, located aboveengine work deck and with in engine cowling,tailpipe fairing and intake fairing.

All surfaces, components, and equipment on cabinexterior and underside between forward sides ofcrew doors and aft cabin wal1s. Includes landinggear, and forward fuel cell sumps on cabin under-side. Includes compartment in pylon island belowmain transmission.

TM 55-1520-210-PMD 5

Area No. 7 Upper Pylon Area

Area No. 8 Lower Pylon Area(via Cabin Interior]and Interior Area

TM 55-1520-210-PMD

All surfaces, components, and equipment of themain rotor pylon group, from top of mast to thebottom of the transmission mounts. Includes mainrotor, mast and rotating controls, transmissionwith accessories and mounts, and main (input)drive shaft. Includes top of cabin surface and com-ponents.

All surfaces, components, and equipment inside ofcabin area, between forward sides of crew doorsand aft cabin walls and pylon is and structure.Including all instruments, equipment, seats, andaccessories. Lower pylon area including bottom oftransmission, electrical and hydraulic com-ponents.

6

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PREVENTIVE MAINTENANCE DAILY CHECKLIST TM 55-1520-210-PMD

The Preventive Maintenance Daily Checklist will be accomplished following the last flight of the day or prior to thefirst flight on the next day on which the aircraft is flown. The inspection consists of visual examination and operationalchecks to determine that the aircraft can safely and efficiently perform its assigned mission.

DAILY INSPECTION TOTAL WORK TIME:

Seq. Seq.No. No.

1.1

1.2

1.3

1.4

1.5

Item and Procedure

NOSE AREA

Inspect aircraft forms and records for recorded discrepan-cies (DA PAM 738-751).

Nose section exterior for visible damage.

Nose compartment interior for cleanliness, equipment forvisible damage and loose connections.

Battery and connections for security, leakage and cleanli-ness. Vent lines for obstructions, kinking and security.Nose compartment door for secure latching.

Pilot’s and copilot’s chin bubbles for condition and clean-liness.

1.6

1.7

1.8

1.9

1.10

“FOD REMINDER”

Item and Procedure

Pilot’s and copilot’s tail rotor controls for visiIble damageand security.

Pilot’s and copilot’s windshields for condition and clean-liness.

Pilots and copilot’s windshield wiper blades fordeterioration and serviceability.

Pitot tube for obstructions, cleanliness (Nose mount).

Static ports for obstructions, cleanliness (Nose mount).

Check work are for tools and parts after completion of maintenance and inspection.TM 55-1520-210-PMD 7

C 1Seq.No.

2.1

2.2

2.3

2.4

2.5

Item and Procedure

CABIN EXTERIOR AND LANDING GEAR(LEFT SIDE)

Cabin exterior for obvious damage. Stencils anddecals for legibility.

Crew door for positive latching, seals fordeterioration, windows for cleanliness andcondition, security of hinges and properoperation. Check emergency jettison handlesfor condition. Copper safety wire for condi-tion and security.

Hinged cabin door for damage and positive lat-ching. Windows for cracks, crazing andcleanliness.

Deleted.

Cargo doors for positive latching. Windows forcleanliness. Door retainers, rollers and

Seq.No.

2.6

2.7

2.8

2.9

“FOD REMINDER”

Item and Procedure

sliders for damage, security, and properoperation. Check window emergency jettisonhandles for condition. Copper wire for condi-tion and security.

Landing gear for damage and security, crosstube bolts missing, broken, ground handlingeyebolt loose. Cross tubes for visual indica-tions of excess spread.

Inspect bottom of cabin for cracks, buckles,wrinkles. and loose or missing rivets, par-ticularly in cross tube attaching areas.

Landing and search lights for security and con-dition.

Cargo suspension assembly for security,cleanliness and freedom of operation of safetylatch. Check manual release and inspect cablefor wear. On nonswiveling type, manually testhook for rotational play indicating brokenshear pin.

TM 55-1520-210-PMD Check work area for tools and parts after completion of maintenance and inspection. 8

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9TM 55-1520--210--PMD

“FOD REMINDER”CHECK WORK AREA FOR TOOLS AND PARTS AFTER COMPLETION OF MAINTENANCE AND INSPECTION.

SEQNO. Item and Procedure

MANDATORY SAFETYOF FLIGHT

INSPECTION ITEM

2.10 Control linkage, irreversible valves andhydraulic cylinders in fuselage below pylonfor evidence of leaks from cylinders andconnecting lines, damage and security.Cyclic and collective cylinder caps (P/N100621 or P/N 100621--1) for security by a feeltest. Tab washer tangs must be bent and incontact with flats on the retainers.


INSPECTION ITEM

2.11 Check that all four bolts/screws through theservo lever assembly have a self--lockingcastellated nut safetied with cotter pin. Checkthat nuts and bolts/screws as an assemblycan be turned by hand.

2.11.1 For servos P/N 205--076--056 check that controltube servo bolt can be turned by hand.

2.12 External stores installation for condition andsecurity.

2.13 M130 chaff bracket for damage and security.


2.14 Position lights for condition, security and crackedlens. Night Fix -- Phase I (NVG) position lightcovers for condition.

ENGINE AREA (LEFT SIDE)

3.1 Engine cowling and fairing for security and dam-age, and loose or missing fasteners.

3.2 Engine air inlet, engine accessories andconnections for damage and security. Check forfuel and oil leaks.

3.3 Electrical cables, ignition coil and lead; FireDetector Assembly for chafing, cracks andsecurity. Check exciter box for condition andsecurity.

3.3.1 (Aircraft equipped with ODDS) check engineexternal oil filter bypass buttons for extendedindication.

3.3.2 Chip Detectors for physical security and damage(i.e., broken wires).

Seq.No.

3.4

3.5

3.6

3.7

3.8

3.9

3.10

3.11

3.12

Item and Procedure

Main and starting fuel manifolds for leaks and security.

Flow divider assembly inspect for leaks, damage andsecurity.

Engine compressor housing visually for cracks,scratches, corrosion and security.

Fuel control power lever for freedom of movementthrough full range to each stop.

Engine mounts visually for cracks, damage andsecurity.

Engine combustion chamber housing, exhaust diffuser,support cone, fireshield, firewall gaskets and seals,and tailpipe for cracks, dents, and burned orbuckled areas.

Bleed air tubing for chafing and security.

Second stage turbine blades; inspect through tailpipeand through exhaust diffuser for cracks, burns,dents or missing blades.

Anti-collision light for condition, security, and cracked

C1 Seq.No.

3.13

4.1

4.2

4.3lens.

“FOD REMINDER”

Item and Procedure

M52 smoke generator nozzle for condition andsecurity. Oil lines for condition, security andleakage.

TAILBOOM AREA (LEFT SIDE)

Electrical compartments access doors for conditionand security: Electrical equipment for conditionand security. Loose or missing rivets (interior).NOTE: Nothing is to be stored in either of thesethree electrical compartments.

AC power receptacle, access door and caution lightswitch for security and condition,

DC power receptacle, access door and caution lightI switch for security and condition.


C 11

11TM 55-1520--210--PMD



4.4 Check oil cooler vanes for obstructions, security,and damage. Oil cooler shield assembly forsecurity, cracks, loose or missing rivets andcorrosion.

4.5 Check hanger assembly, driveshaft clamps, tailpipe drain line, heat shield and electrical wiring forcondition and security.


INSPECTION ITEM

4.6

4.7

Tail rotor driveshaft installation for damage,foreign materials and security of hangers,coupling clamps and covers. Inspect all tailrotor driveshaft couplings for grease leakage.Bearing for indication of overheating.

Tail rotor driveshafts for corrosion, visible damageand missing weights.

4.8 Inspect tailboom, synchronized elevator andvertical fin exterior skin for evidence of damage,cracks, loose or missing rivets, and corrosion.

4.9 Check for radial play condition and security ofsynchronized elevator.



INSPECTION ITEM

4.10 Inspect vertical fin spar and vertical findriveshaft cover attachment channel forcracks. Cleanliness of chain, and condition ofaft cables and grommets. Inspectchain/sprocket access cover attachmentrivets for looseness and condition. Inspectfor loose or missing rivets attaching the 90degree gearbox attachment fitting.


INSPECTION ITEM

4.11 Tail Rotor (90 degree) gearbox for security, oillevel and leaks. Tail rotor control installationfor condition and security.

4.11.1 Chip detectors for physical security and damage(i.e. broken wires).


INSPECTION ITEM

4.12 Tail rotor hub, tail rotor retention nut, split cones

and blade assembly for security and visible damage.

JENKINS-BL

JENKINS-BL

JENKINS-BL

JENKINS-BL

JENKINS-BL

JENKINS-BL

JENKINS-BL

JENKINS-BL

JENKINS-BL

Seq.No.

4.13

4.14

4.15

4.16

Item and Procedure


INSPECTION ITEM

Visually inspect tail rotor crosshead to sliderretaining bolts and nuts for security.


INSPECTION ITEM

Visually inspect pitch change link attachment boltsand nuts for security.


INSPECTION ITEM

Using a clean soft cloth, wipe blade surface.Visually inspect for cracks, skin separation andother damage, with special attention to the areaon both sides of blade between the bladedoublers and four (4) to six (6) inches (10 to 15cm) outboard of the doublers. Internal rattlingsound head when hub and blade assembly isrotated is caused by internal debris and is notcause for rejection.

Check tail skid for condition and security.

“FOD REMINDER”TM 55-1520-210-PMD Check work area for tools and parts after completion of maintenance and inspection.

C9 Seq.No.

4.17

4.18

4.19

4.19.1

4.20

Item and Procedure

Tailboom vent for condition and security.

Check position light for condition, security, andcracked lens.

TAILBOOM AREA (RIGHT SIDE)


INSPECTION ITEM

Intermediate (42 degree) gearbox for security,oil level, and leaks.

Chip detectors for physical security and damage(i.e. broken wires).

Inspect tailboom, synchronized elevator andvertical fin exterior skin for evidence ofdamage, cracks, loose or missing rivets, andcorrosion.

12

Seq.No.

4.21

4.22

4.23

4.24

4.25

Item and Procedure

Check for radial play, condition and security ofsynchronized elevator.

Oil cooling compartment door for security andcondition. NOTE: Nothing is to be stored inthis compartment.

Battery and connections, for cleanliness andsecurity. Vent lines for obstructions, kinkingand security. Battery shelf for security of at-taching points and supporting structure fordamage and cracks.

Check tail rotor control servo for leakage, condi-tion and security. Hydraulic piston wipedclean.


INSPECTION ITEM

Oil cooler turbine blower fan blades for freemovement. Screen for obstruction, securityand condition. Supporting structure andbleed air line visually for condition andsecurity. Connecting link (rigid structuraltube), for installation.

C 4Seq.No.

4.26

4.27

4.28

4.29

4.30

4.31

"FOD REMINDER"

Item and Procedure


INSPECTION ITEM

Tailboom attach bolts visually for security andslippage marks. Fittings for cracks. Inspectlongerons up to 12 inches from the fittings forcracks.


INSPECTION ITEM

Tail rotor control quadrant for proper installa-tion and condition of cables.

Heater mixing valve and air duct for conditionand security.

Check muff heater system and hoses for condi-tion and security.

Heater compartment doors for condition andsecurity. Heater compartment for condition.NOTE: Nothing is to be stored in this com-partment.

Visually inspect fuel level. Check fuel cap andclosed circuit refueling hardware for condi-tion, operation and security.

TM 55-152 0-210-PMD Check work area for tools and parts after completion of maintenance and inspection. 13

C 10

14TM 55-1520--210--PMD



ENGINE AREA (RIGHT SIDE)

5.1 Engine cowling and fairing for security, damageand loossse or missing fasteners.

5.1.1 Main and Start fuel manifolds for leaks andsecurity.

5.2 Engine inlet housing, accessories andconnections for damage and security. Check forfuel and oil leaks.

5.3 Starter--generator intake and outlet ducts fordeterioration and security.

5.4 Engine compressor housing visually for cracks,scratches, corrosion and security.

5.5 Engine combustion chamber housing, exhaustdiffuser, support cone, firreshield, firewall gasketsand seals, and tailpipe for cracks, dents, andburned or buckled areas.

5.6 Engine mounts visually for cracks, damage andsecurity.



INSPECTION ITEM

5.7 Engine oil tank for security and oil level, linesfor leaks or damage. Sight gages for damagedor stained glasses.

5.8 Exhaust thermocouple assembly for chafing,cracks and security.

5.9 Electrical cable assembly, ignition coil lead andfire detector assebly for chafing, cracks, andsecurity.

CABIN EXTERIOR AND LANDING GEAR(RIGHT SIDE)

6.1 Cabin exterior for obvious damage. Stencils anddecals for legibility.

C 1

Item and Procedure

Crew door for positive latching, seals f o rdeterioration, windows for cleanliness andcondition, security of hinges and properoperation. Check emergency jettison handlesfor condition Copper safety wire for condi-tion and security.

Hinged cabin door for damage and positive lat-ching. Windows for cracks, crazing andcleanliness.

Handholds and steps for cracks. corrosion andloose hardware. Step hinges for proper opera-tion and security.

Cargo door for positive latching. Windows forcleanliness. Door retainers , rol lers andsliders for damage, security and properoperation. Check window emergency jettisonhandles for condition. Copper wire for condi-tion and security.

Landing gear for damage and security, crosstu be bolts missing. broken ground handlingeyebol t loose Cross tubes for visual indica-tions of excess spread.

SeqNo.

6.7

6.8

6.9

6.10

7.1

Item and Procedure

Inspect bottom of cabin for cracks, buckles,wrinkles, and loose or missing rivets, par-ticulary in cross tube areas.

External stores installation for condition a n dsecurity.

M 130 chaff /flare bracket for damage and secur-ity.

Check position lights for condition, security andcracked lens. Night Fix — Phase I (NVG) posi-tion light covers for condition.

UPPER PYLON AREA AND CABIN TOP

Pitot tube and static ports for obstruction andcleanliness (Roof Mount).

"FOD REM IN DER"

TM 55-1520-210-PMD Check work area for tools and parts after completion of maintenance and inspection.15

C 3

7.2

7.3

7.4

7.5

7.6

7.7

7.8

7.8.1

Item and Procedure

Cabin roof windows for cracks, crazing a n dcleanliness.

Cabin roof for damage. skin cracks, tears, andloose or missing rivets. Skin for buckledareas. Paint for chipped or peeling condition.

Transmission cowling for damage and security.EH-1 H/X Inspect alternator wires for chaffing,

Alternator air intake for damage and security.

Hydraulic reservoir for fluid level.


INSPECTION ITEM

Main (input) drive shaft couplings for evidenceof grease leakage, clamps for security.

Deleted

Inspect all lines, fittings and accessories

Seq.No.

7.9

7.10

on top half of transmission for security,condition and leaks.

"FOD REMINDER"

Item and Procedure


INSPECTION ITEM

Exterior of FOD screen for foreign materia l(grass or vegetation).


INSPECTION ITEM

Non self-purging separator; intake screen andfilter for damage, obstructions and loose ormissing fasteners. Check gaps between screensections, not to exceed screen mesh width.Remove airframe (OD) screen, clean sand anddust separator; foam and metal filters, in-spect for damage.


SeqNo

7.11

7.11.1

Item and Procedure


INSPECTION ITEM

Self-purging separator: intake screen fordamage, obstructions and loose or missingfasteners. Check flex hose for wear, dis-charge tube connections for security, andairframe (FOD) screen for damage. If da-maged, remove airframe (FOD) screen andtop half of airframe screen and the upper airfilter assembly. I N S P E C T E N G I N E I N -LET FOR FOD. Remove accumulated resi-due from the overboard discharge tubeassembly.


INSPECTION ITEM

Improved Particle Separator: Check missing,damaged, or obstructed vortex tubes, loose ormissing fasteners, and evidence of parts enter-ing the engine inlet. If external inspection in-dicates parts may have entered engine inlet,remove Separator and INSPECT ENGINEINLET FOR FOD. Remove any impacted sandor dirt from exterior of Separator and

C 6

I Item and Procedure


INSPECTION ITEM

Sealant betwee n rigid connecting Iink and clevisrod end. If adhesive bond is broken, removetube assembly, inspect for corrosion andthread damage.


INSPECTION ITEM

Collective levers for cracks, corrosion, securityand visible damage.Bearings and bushingsfor excessive play.


INSPECTION ITEM

Swashplate, scissors and sleeve, drive links andconnecting linkage and rod end bearings for cor-rosion, security and visible damage. Visuallyinspect control lugs (3 each) on swashplateinner rings for cracks. Inspect trunnion bearingsfor radial and axial play and visually inspecttrunnion bearing ball for cracks.

Separator air oultlets. “ FOD REMINDER ”

TM 55-520-210-PMD Check work area for tools and parts after completion of maintenance and inspection 17

C 7

7.15

7.15.1

7. 16

7.17

7 .18

Item and Procedure


INSPECTION ITEM

Mast and boots for visible damage, corrosionand security

Hub spring assembly, for security, condition,deformation and cracks in rubber bumper.

Stablizer dampers for full fluid level, leakageand security of attachment.


INSPECTION ITEM

Stabilizer bar assembly for visible damage, corrosionand security. All pivot bolts and nuts and mount-ing bolts visually for cracks and security.

Stabilizer bar connecting linkage for visibledamage, security of attachment and corro-sion Pitch links and rod end bearings forplay and security

SeqNo

7 19

7.20

7.20.1

Item and Procedure

Main rotor pil low block and grip reservoirs foroil level leakage and security. hub assembly.blade grips, pitch horns and drag braces forvisible damage and security

NOTE

Direct particular attention to the Blade Gripsin the area Drag Brace attachment lugs forcracks.


INSPECTION ITEM

Gain access LO blades. Wipe blades upper andlower surfaces with a clean soft cloth and in-spect both surfaces and blade tip for damage,cracks and visible indications of voids andbond separation Inspect for nicks and dentsin trailing edge and scarf joints for erosionand corrosion.

Visually inspect composite main rotor blade fordamage and security

‘‘FOD REMINDER"

TM 55-1520-210-PMD Check work area for tools and parts after completion of maintenance and inspection.18

C 7

7.21

7.22

Item and Procedure

Cabin roof vents for

Check position lightscracked lens.

TM 55-1520-210-PMD

obstructions and condition.

for condition, security and

Seq.No.

Item and Procedure

18.1/(18.2 blank)

Seq.No.

8.1

8.2

8.3

8.4

Item and Procedure

LOWER PYLON AREA (VIA CABININTERIOR) AND INTERIOR AREA


INSPECTION ITEM

Transmission for security, corrosion, damage,chafing oil lines and oil leaks. Check sump forwater contamination and for oil level. External oilfilter for by-pass indication. Sight gages fordamage and staining. Lift link and both attaching

with ODDS, check physical security of debrismonitor electrical connector and condition of wires.


INSPECTION ITEM

Hydraulic servo cylinder mount nuts (4 eachcylinder), check slippage marks.

Deleted

C 11 Seq.No.

8.5

8.6

8.7

8.8

8.9

8.10Deleted

“FOD REMINDER”

Item and Procedure

Tachometer generator for damage and security.

Hydraulic system components and lines forsecurity, damage and evidence of leaks. Wipeclean all exposed hydraulic pistons. Hydraulicfilter for appearance of red indicator button.

NOTE

If red indicator button on hydraulic module popsbefore 450 hours is reached, replace filter. Iftemperature is below 20°F (-6.7°C), allow fluid towarm up and reset button. If button pops again,replace filter.

Output drive shaft coupling for grease leakage andsecurity.

Cabin interior clean and clear of loose objects ort o o l s .

First aid kits for designated location, presence ofinspection data tag, broken or missing seal andsecurity.

Troop seats, seat belts and mission equipmentsecurity installed or stowed.


clevis lugs on transmission for wear, cracks andproper installation of hardware. Aircraft equipped

Seq.No.

8.11

8,12

8.13

8.14

8.15

8.16

Item and Procedure

Sound absorbing blankets securely installed with allbulkhead tiedown fittings, straps and rings outside ofblankets.

Cargo tiedowns for corrosion and security.

Reinforced mounting plates (Avionics) for damage andsecurity.

M52 smoke generator oil tank, oil pump and lines forvisible damage and security.

Crew member/mission operator seats for damage,security, and positive movement and locking in allpositions. Safety belts and shoulder harness fordamage, corrosion, cuts, fraying and security.Inertia reels for damage, security, and positivelocking and unlocking. Check quick emergencyrelease handles for security and conditions, Coppersafety wire for condition and security.

Crew member/mission operator seat cushions and backcoverstains,

for general condition, cuts, tears, burns,fading, broken stitches and sagging.

“FOD REMINDER”TM 55-1520-210-PMD Check work area for tools and parts after completion of maintennce and inspection.

Seq.No.

8.17

8.18

8.19

8.20

8.21

8.22

8.23

8.24

8.25

Item and Procedure

Fire extinguishers for proper location and sealintact. Presence of inspection data tag(DD Form 1574).

Fire extinguishers and brackets for damage andsecurity of installation.

Rifle rack bracket for damage and security.

All instruments for cleanliness, visible damage andproper range markings.

On Night Fix - Phase 1 (NVG) modified aircraft:Check lighting for corrosion and cracked orcrazed lenses. Glareshield extension forsecurity.

Compass Correction card for availability andlegibility.

Pedals checked.

Windshield wiper motor cover guards for cracksand damage.

Check circuit breakers and switches set as required.

20

C 10

19 and 20

8.26

AllA r e a

I t e m a n d P r o c e d u r e

Deleted.

MAN DATORY SAFETYOF FLIGHT

INSPECTION ITEM

LUBRICATION

Lubricate in accordance with lubrication chartcontained in Chapter 1, of TM 55-1520-210-23,applicable to the daily requirements.

C 6S e q

No.

1.11

1.12

2.15

2.16

2.17

3. 1 4

6.11

7.23

8.27


POWER ON

Battery on, check for 24 volts.

Pitot heater for operation (Nose Mount).

Exterior 1ights (navigation, anticollision, lan-ding. and search 1ights) for proper operation.

Cargo hook electrical release for operation.

Windshield wiper motor pi lot /co-pilot foroperation.

Fuel tank sump drains for water or other con-tamination. (Use sample jar.) (Use boostpumps off.) Main fuel filter for visual indica-tion of clogged element condition, evidence ofwater in filter drain sample leakage fromlines. (Fuel boost pumps on. )

Exterior lights (navigation, anticollision, lan-ding, and search 1ights) for proper operation.

Pitot heater for operation (Roof Mount).

Caution panel lights for illumination on test

I switch position

"FOD REMINDER"21

TM 55-1520-210-PMD Check work area for tools and parls after completion of maintenance and inspection

C 10


TM 55-1520--210--PMD 22


8.28 Press to test caution/warning lights.

8.29 Interior lights (dome, cockpit, instrument, con-sole, and pedestal lights) for proper operation.

NOTE

The following check requires main or spare in-verter power. The copilot attitude indicator mustbe caged and held momentarily when inverterpower is applied.

8.30 Fuel quantity indicator checked with test switch.

8.31 Engine controls for free action through full rangeand idle stop release.

8.32 Deleted.

8.33 High performance hoist (if installed). Performhoist inspections, checks and test as requirredin applicable hoist publications.

a. Cable Cutter Connection Check.

(1) Cable cutter cartridge electrical connectionfor security and damage.

(2) Electrical connection cable for damage andfraying.

(3) Hoist hour meter for reading of a multiple of2 hours (2, 4, 6, 8, 10, etc.)


NOTE

If meter indicates a multiple of 2 hours, dis-connect cable cutter electrical harness con-nector. Check inteernal condition of connec-tor and cable cutter electrical receptacle (es-pecially pins) for corrosion and damage. Re--connect cable cutter electrical harness con-nector after inspection.

NOTE

If hoist is to be removed fromaircraft installaluminum shorting strip across pins in cablecutter electrical receptacle on hoist boom andinstall protective cap.

b. Cable Cut Switch.

(1) Cable cut switch on control panel for securi-ty and condition of rubber cover.

NOTE

Do not lift up cable cut switch guard to checkswitchunless inspection indicates that furtherexamination is needed.

(2) Control panel and pilot’s cable cut switchquards are down and lockwired.

c. Hook and Boom Assembly Check.

(1) Hook assembly for 360° freedom of move-ment about cable.

C 10

TM 55-1520--210--PMD


23/(24 blank)


(2) Carrier assembly retainer spring clip forproper installation.

(3) Hook quick release pin for operation andsecurity.

(4) Oil level should be even with mark on sightglass (2).

(5) Boom attachment bolts for security.

(6) Swivel of boomhead (30° each side of verti-cal).

d. Winch Check.

(1) Oil level in sight glass.

(2) Gear case for leakage and visible damage.

(3) High temperature sensor and sensor cablefor installation and fraying.

(4) Cable drum opening for FOD and uniformwinding of cable.

(5) Cam drive -- chain guard for security anddamage. If guard is broken, make sure thatchain is not damaged.

(6) Limit switch drive assembly box for securityand damage.

e. Winch Motor Check.

(1) Motor for security and visible damage.


(2) V--band clamp for installation and security.

(3) Power cable for sealant at connector andfraying.

f. Control Panel Check.

(1) Exterior for visible damage and mount boltsfor security.

(2) Aircraft position awitch for security and prop-er setting.

AVIONICSPerform avionics system inspection, checks andtest as required in applicable avionics publica-tions.

ARMAMENTPerform armament system inspections, checksand test as required in applicable Armamentpublications.

FORMS AND RECORDSCOMPLETION

Asceertain that all entries on forms, records andwork sheets have been completed or updatedand new forms initiated as required DA PAM738--751.

S e q

N o

TM 55


C 6Seq

N oI t e m a n d P r o c e d u r e

AVIONICS

Perform avionics system inspection, checks andt e s tpub

as r e q u i r e d in a p p l i c a b l e a v i o n i c sl ica t ions .

ARMAMENT

Perform armament system inspections, checksand test as required in applicable Armamentpublications.

‘‘ FOD REM INL)ER‘‘

-1520-210-PMD Check work area for tools and parts after completion of maintenance and inspection.25 blank/26

SeqNo.

TM 55-


FORMS AND RECORDSCOMPLET ION

Ascertain that al l entr ies on forms, recordsand work sheets have been completed or up-dated and new forms initiate’d as requiredDA PAM 738-751.

C 5Seq

No. I t e m a n d P r o c e d u r e

"FOD REMINDER"

1520-210-PMD Check work area for tools and parts after completion of maintenance and inspection. 27/(28 blank)


Official:

Major

E. C. MEYERGeneral, United States Army

Chief of Staff

ROBERT M. JOYCEGeneral, United States ArmyThe Adjutant General

DISTRIBUTION:To be distributed in accordance with DA Form 12-31, PM Maintenance Requirements for UH-1D/H and

EH-1H aircraft.

* U.S. GOVERNMENT PRINTING OFFICE : 1991 0 - 281-523/45036

TM 55-1520-210-PMD

These are the instructions for sending an electronic 2028The following format must be used if submitting an electronic 2028. The subject line must beexactly the same and all fields must be included; however only the following fields aremandatory: 1, 3, 4, 5, 6, 7, 8, 9, 10, 13, 15, 16, 17, and 27.

From: “Whomever” <[email protected]>To: [email protected]

Subject: DA Form 20281. From: Joe Smith2. Unit: home3. Address: 4300 Park4. City: Hometown5. St: MO6. Zip: 777777. Date Sent: 19--OCT--938. Pub no: 55--2840--229--239. Pub Title: TM10. Publication Date: 04--JUL--8511. Change Number: 712. Submitter Rank: MSG13. Submitter FName: Joe14. Submitter MName: T15. Submitter LName: Smith16. Submitter Phone: 123--123--123417. Problem: 118. Page: 219. Paragraph: 320. Line: 421. NSN: 522. Reference: 623. Figure: 724. Table: 825. Item: 926. Total: 12327. Text:This is the text for the problem below line 27.

RECOMMENDED CHANGES TO PUBLICATIONS AND

BLANK FORMSFor use of this form, see AR 25--30; the proponent agency is ODISC4.

Use Part II (reverse) for Repair Parts and Spe-cial Tool Lists (RPSTL) and Supply Catalogs/Supply Manuals (SC/SM)

DATE

8/30/02

TO: (Forward to proponent of publication or form)(Include ZIP Code)

Commander, U.S. Army Aviation and Missile Command

ATTN: AMSAM--MMC--MA--NP

R eds t one A r s enal, AL 35898

FROM: (Activity and location)(Include ZIP Code)

MSG, Jane Q. Doe

1234 Any Street

Nowhere Town, AL 34565

PART 1 -- ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS

PUBLICATION/FORM NUMBER

TM 9--1005--433--24DATE

16 Sep 2002TITLE Organizational, Direct Support, And GeneralSupport Maintenance Manual for Machine Gun, .50Caliber M3P and M3P Machine Gun Electrical Test SetUsed On Avenger Air Defense Weapon System

ITEM

NO.

PAGE

NO.

PARA--

GRAPH

LINE

NO. *

FIGURE

NO.

TABLE

NO.RECOMMENDED CHANGES AND REASON

1 WP0005

PG 3

2 Test or Corrective Action column should identify a different WP number.

* Reference to line numbers within the paragraph or subparagraph.

TYPED NAME, GRADE OR TITLE

MSG, Jane Q. Doe, SFC

TELEPHONE EXCHANGE/AUTOVON, PLUS EXTEN-SION

788--1234

SIGNATURE

DA FORM 2028, FEB 74 REPLACES DA FORM 2028, 1 DEC 68, WHICH WILL BE USED. USAPA V3.01

TO: (Forward direct to addressee listed in publication)

Commander, U.S. Army Aviation and Missile Command

ATTN: AMSAM--MMC--MA--NP

R eds t one A r s enal, AL 35898

FROM: (Activity and location) (Include ZIP Code)

MSG, Jane Q. Doe

1234 Any Street

Nowhere Town, AL 34565

DATE

8/30/02

PART II -- REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS

PUBLICATION NUMBER DATE TITLE

PAGE

NO.

COLM

NO.

LINE

NO.

NATIONAL STOCK

NUMBER

REFERENCE

NO.

FIGURE

NO.

ITEM

NO.

TOTAL NO.OF MAJOR

ITEMSSUPPORTED

RECOMMENDED ACTION

PART III -- REMARKS (Any general remarks or recommendations, or suggestions for improvement of publications and

blank forms. Additional blank sheets may be used if more space is needed.)

TYPED NAME, GRADE OR TITLE

MSG, Jane Q. Doe, SFC

TELEPHONE EXCHANGE/AUTOVON,PLUS EXTENSION

788--1234

SIGNATURE

USAPA V3.01

RECOMMENDED CHANGES TO PUBLICATIONS AND

BLANK FORMSFor use of this form, see AR 25--30; the proponent agency is ODISC4.

Use Part II (reverse) for Repair Parts and Spe-cial Tool Lists (RPSTL) and Supply Catalogs/Supply Manuals (SC/SM)

DATE

TO: (Forward to proponent of publication or form)(Include ZIP Code) FROM: (Activity and location)(Include ZIP Code)

PART 1 -- ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS

PUBLICATION/FORM NUMBER DATE T I T LE

ITEM

NO.

PAGE

NO.

PARA--

GRAPH

LINE

NO. *

FIGURE

NO.

TABLE

NO.RECOMMENDED CHANGES AND REASON

* Reference to line numbers within the paragraph or subparagraph.

TYPED NAME, GRADE OR TITLE TELEPHONE EXCHANGE/AUTOVON, PLUS EXTEN-SION

SIGNATURE

DA FORM 2028, FEB 74 REPLACES DA FORM 2028, 1 DEC 68, WHICH WILL BE USED. USAPA V3.01

Commander, U.S. Army Aviation and Missile CommandATTN: AMSAM-MMC-MA-NPRedstone Arsenal, AL 35898

TO: (Forward direct to addressee listed in publication) FROM: (Activity and location) (Include ZIP Code) DATE

PART II -- REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS

PUBLICATION NUMBER DATE TITLE

PAGE

NO.

COLM

NO.

LINE

NO.

NATIONAL STOCK

NUMBER

REFERENCE

NO.

FIGURE

NO.

ITEM

NO.

TOTAL NO.OF MAJOR

ITEMSSUPPORTED

RECOMMENDED ACTION

PART III -- REMARKS (Any general remarks or recommendations, or suggestions for improvement of publications and

blank forms. Additional blank sheets may be used if more space is needed.)

TYPED NAME, GRADE OR TITLE TELEPHONE EXCHANGE/AUTOVON,PLUS EXTENSION

SIGNATURE

USAPA V3.01

Commander, U.S. Army Aviation and Missile CommandATTN: AMSAM-MMC-MA-NPRedstone Arsenal, AL 35898

The Metric System and Equivalents

Linear Measure Liquid Measure

1 centiliter = 10 milliters = .34 fl. ounce1 centimeter = 10 millimeters = .39 inch 1 deciliter = 10 centiliters = 3.38 fl. ounces1 decimeter = 10 centimeters = 3.94 inches 1 liter = 10 deciliters = 33.81 fl. ounces1 meter = 10 decimeters = 39.37 inches 1 dekaliter = 10 liters = 2.64 gallons1 dekameter = 10 meters = 32.8 feet 1 hectoliter = 10 dekaliters = 26.42 gallons1 hectometer = 10 dekameters = 328.08 feet 1 kiloliter = 10 hectoliters = 264.18 gallons1 kilometer = 10 hectometers = 3,280.8 feet

Square MeasureWeights

1 sq. centimeter = 100 sq. millimeters = .155 sq. inch1 centigram = 10 milligrams = .15 grain 1 sq. decimeter = 100 sq. centimeters = 15.5 sq. inches1 decigram = 10 centigrams = 1.54 grains 1 sq. meter (centare) = 100 sq. decimeters = 10.76 sq. feet1 gram = 10 decigram = .035 ounce 1 sq. dekameter (are) = 100 sq. meters = 1,076.4 sq. feet1 decagram = 10 grams = .35 ounce 1 sq. hectometer (hectare) = 100 sq. dekameters = 2.47 acres1 hectogram = 10 decagrams = 3.52 ounces 1 sq. kilometer = 100 sq. hectometers = .386 sq. mile1 kilogram = 10 hectograms = 2.2 pounds1 quintal = 100 kilograms = 220.46 pounds Cubic Measure1 metric ton = 10 quintals = 1.1 short tons

1 cu. centimeter = 1000 cu. millimeters = .06 cu. inch1 cu. decimeter = 1000 cu. centimeters = 61.02 cu. inches1 cu. meter = 1000 cu. decimeters = 35.31 cu. feet

Approximate Conversion Factors

To change To Multiply by To change To Multiply by

inches centimeters 2.540 ounce-inches Newton-meters .007062feet meters .305 centimeters inches .394yards meters .914 meters feet 3.280miles kilometers 1.609 meters yards 1.094square inches square centimeters 6.451 kilometers miles .621square feet square meters .093 square centimeters square inches .155square yards square meters .836 square meters square feet 10.764square miles square kilometers 2.590 square meters square yards 1.196acres square hectometers .405 square kilometers square miles .386cubic feet cubic meters .028 square hectometers acres 2.471cubic yards cubic meters .765 cubic meters cubic feet 35.315fluid ounces milliliters 29,573 cubic meters cubic yards 1.308pints liters .473 milliliters fluid ounces .034quarts liters .946 liters pints 2.113gallons liters 3.785 liters quarts 1.057ounces grams 28.349 liters gallons .264pounds kilograms .454 grams ounces .035short tons metric tons .907 kilograms pounds 2.205pound-feet Newton-meters 1.356 metric tons short tons 1.102pound-inches Newton-meters .11296

Temperature (Exact)

°F Fahrenheit 5/9 (after Celsius °Ctemperature subtracting 32) temperature

PIN: 016803-000

tm 55-1520-210-pmd.pdf

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