10-30-00 Pageblock 201

AIRCRAFT PRESERVATION - MAINTENANCE PRACTICES

Effective on: AAL ALL

"USE MCM CARD 05-92-69, 05-91-73, as required by GPM 03-07"

1. General

A. This section shows those items required for aircraft storage. All items relating to the airframe are

applicable to both short-term and long-term storage. The chart shows the intervals at which each

item must be repeated in order to maintain the aircraft in a serviceable condition.

B. Engine and APU preservation procedures are identified by length of storage.

C. The specific storage procedures can be found in the following aircraft preservation procedures tables

Paragraph 5. .

(1) Aircraft exterior Paragraph 5.A.

(2) Aircraft engines - general preservation procedures Paragraph 5.B.

(3) Engine storage less than 7 days Paragraph 5.C.

(4) Engine storage 7 to 28 days Paragraph 5.D.

(5) Engine storage 28 to 90 days Paragraph 5.E.

(6) Engine storage more than 90 days Paragraph 5.F.

(7) APU storage up to 180 days Paragraph 5.G. . For normal preservation see GENERAL -

SERVICING, PAGEBLOCK 49-00-00/301 Config 1 or GENERAL - SERVICING,

PAGEBLOCK 49-00-00/301 Config 2 .

(8) APU storage 180 to 365 days Paragraph 5.H. . For normal preservation see GENERAL -

SERVICING, PAGEBLOCK 49-00-00/301 Config 1 or GENERAL - SERVICING,

PAGEBLOCK 49-00-00/301 Config 2 .

(9) Aircraft interior Paragraph 5.I.

(10) Final operations Paragraph 5.J.

(11) Inspections and procedures Paragraph 5.K.

2. Equipment and Materials

NOTE: It is possible that some materials in the Equipment and Materials List cannot be used for some or all of

their necessary applications. Before you use the materials, make sure the types, quantities, and

applications of the materials necessary are legally permitted in your location. All persons must obey all

applicable federal, state, local, and provincial laws and regulations when it is necessary to work with these

materials.

NOTE: Equivalent substitutes may be used in place of the following items:

Table 201.

Name and Number Manufacturer

Lockpin, main landing gear (2),

2916700-1

Douglas Aircraft Co.

Lockpin, nose landing gear (1), Douglas Aircraft Co.

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Table 201.

Name and Number Manufacturer

2916700-501

Static grounding cable terminals,

TGR or SDP

Appleton Elect. Co.

Wheel chocks Locally manufactured

Cover, APU cooling air exit,

5100172

Texstar Plastics

Cover, engine inlet,

510-1235

Texstar Plastics

Cover, engine exhaust,

510-1236

Texstar Plastics

Cover, dorsal ram air and inlet,

5100163

Texstar Plastics

Cover, air conditioning exhaust (left),

5100164

Texstar Plastics

Cover, air conditioning exhaust (right),

5100174

Texstar Plastics

Cover, pitot tube, nose,

2916748

Douglas Aircraft Co.

Cover, tail section louver (left),

5100197

Texstar Plastics

Cover, tail section louver (right),

5100196

Texstar Plastics

Cover, pitot tube stabilizer,

4916783

Douglas Aircraft Co.

Film, polyethylene

DPM 661

Film, masking

DPM 5517

Tape, plastic coated, waterproof

DPM 2344

Tape, adhesive

DPM 871

Foam, polyethylene

DPM 3098

Material, cushioning

DPM 3196-1

1,1,1 trichloroethane

DPM 5792

Masks, aluminized mylar

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Table 201.

Name and Number Manufacturer

DPM 5942

Paper, abrasion resistant

DPM 5783

Foil, aluminum

DPM 659

Tape, adhesive, cloth-backed

DPM 871

Protective coating, solvent removable

DPM 5404-3635

Grease, lubricant

DPM 5348

Solvent, cutback, corrosion preventive

DPM 665

Fluid, hydraulic

DPM 392 or DPM 366

Fluid, hydraulic (Skydrol)

DMS 2014, Type 2 or Type 4

Paper, grease proof, waterproof

DPM 634

Barrier material, water vaporproof, flexible

DPM 632

Humidity Indicator Plug

DPM 2651-1

Humidity Indicator Card

DPM 3468

Solvent, P-D-680

DPM 518

Corrosion preventive, fingerprint remover

DPM 673

Desiccant, activated, bagged

DPM 5265

Inconel Lockwire 0.032 in,

NASM20995N32, DPM 684

Corrosion Resistant Steel Lockwire 0.032 in

NASM20995C32, DPM 5865

Container, 6-gallon

Lubricating oil, jet engine

DPM 339

Lubricant, oil

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Table 201.

Name and Number Manufacturer

DPM 5109

Adapter,

PWA-12386

Pratt & Whitney Aircraft

Plastic bags

3. Parking Aircraft for Storage

A. Prior to storage the aircraft must be positioned in the storage area. The following procedures

supplement those procedures found in PAGEBLOCK 10-10-00/201 .

WARNING: IF WIND GUSTS ARE EXPECTED TO EXCEED 69 MPH (60 KNOTS), AIRCRAFT

SHOULD BE HEADED INTO WIND TO PREVENT STRUCTURAL DAMAGE TO

PRIMARY CONTROL SURFACES.

CAUTION: IF THERE IS ANY POSSIBILITY THAT AIRCRAFT HAS BEEN SUBJECTED TO

WINDS IN EXCESS OF 75 MPH (65 KNOTS), AND AIRCRAFT HAS NOT BEEN

HEADED INTO WIND OR WIND DIRECTION CHANGED DURING PARKING,

PERFORM VISUAL AND PHYSICAL INSPECTIONS (MOVING THE SURFACES BY

HAND) OF ALL FLIGHT CONTROLS AND AN OPERATIONAL CHECK OF THESE

SYSTEMS.

(1) Position aircraft on a level surface.

(2) If possible, aircraft should be spaced a sufficient distance apart to provide adequate

clearance for maintenance, servicing, and fire lanes.

(3) If possible, maintain fire lanes between each double row and block of aircraft, a width

slightly greater than the wing span of the parked aircraft.

(4) The direction in which aircraft are to be parked will be determined by ease of

maintenance and servicing, and not by the direction of the prevailing wind.

(5) Center nosewheel.

(6) Chock main landing gear wheels.

(7) Connect aircraft static grounding cables.

(8) Install landing gear safety lockpins in main and nose landing gears.

(9) Moor aircraft, if necessary. ( PAGEBLOCK 10-20-00/201 )

B. If the aircraft is parked in an area of ice, or frozen snow, do one of the following steps to prevent the

tires from freezing to the ground during a freeze condition.

(1) Put a mat under the tires.

(2) Put a layer of coarse sand under the tires.

(3) Put some other applicable material under the tires.

4. Storage Material Replacement

A. Some materials used in aircraft storage procedures require periodic inspection and replacement.

Table 202. Storage Material Replacement

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MATERIAL REPLACEMENT FREQUENCY

Paper, abrasion-resistant

(DPM 5783)

Replace every 4 weeks

Adhesive Tape (DPM 871) Replace every 2 months

Aluminized Mylar (DPM 5942) Replace every year

"USE MCM CARD 05-92-60,05-92-61,05-92-62,05-92-70,05-92-71,05-92-72,05-92-75,05-92-77, as required by GPM

03-07"

5. Aircraft Preservation Procedures

A. Aircraft Exterior

Table 203.

STEP ITEM WHEN

PERFORMED

1. Protect pitot tubes, temperature probes, static ports, and static plates. Use

designated covers or polyethylene film secured with masking film to insure

water cannot become entrapped.

Initial

Storage

CAUTION: DO NOT SEAL DRAIN OPENINGS.

2. Cover openings, air scoops, exhausts, etc., in fuselage. Use polyethylene film

secured with masking film. For Pitot/Static openings, ( PAGEBLOCK 10-10-

00/201 ).

Initial

Storage

3. Protect exterior portions of windshields, windows, lights, and all other exposed

glass or acrylic. Use the following materials as practical:

Initial

Storage

A. Aluminized mylar masks. Preferable for windows and windshields.

B. Abrasion-resistant paper.

C. Aluminum foil attached with cloth-backed adhesive tape.

D. Polyethylene sheet attached with cloth-backed adhesive tape.

4. Check aircraft exterior fuselage, wings, and empennage for signs of corrosion,

unprotected aluminum, scratches, unprotected rivets and fasteners.

Initial

Storage

A. Protect areas as required. Apply solvent removable protective coating. Strip and

replace

coating every

6 months

5. Lubricate aircraft completely. ( PAGEBLOCK 12-21-01/301 ) ( PAGEBLOCK 12-

21-02/301 ) ( PAGEBLOCK 12-21-03/301 ) ( LANDING GEAR - LUBRICATION,

PAGEBLOCK 12-21-04/301 ) ( PAGEBLOCK 12-21-05/301 )

Initial

Storage

(Repeat

annually)

A. Lubricate jack pads. Use grease lubricant.

WARNING: CORROSION PREVENTATIVE IS AN AGENT THAT IS FLAMMABLE, POISONOUS, AND

AN IRRITANT. MAKE SURE ALL PERSONS OBEY ALL OF THE PRECAUTIONS WHEN

CORROSION PREVENTATIVE IS USED.

• DO NOT USE IN AREAS WHERE THERE IS HIGH HEAT, SPARKS, OR

FLAMES.

• USE IN AN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET CORROSION PREVENTATIVE IN THE EYES, ON THE SKIN,

OR ON YOUR CLOTHES.

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Table 203.

STEP ITEM WHEN

PERFORMED

• DO NOT BREATHE THE GAS.

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

6. Protect landing gear and shock struts. Use corrosion preventive solvent

cutback.

Initial

Storage

(Repeat each

90 days)

WARNING: PETROLEUM-BASE HYDRAULIC FLUID IS AN AGENT THAT IS FLAMMABLE AND AN

IRRITANT. MAKE SURE ALL PERSONS OBEY ALL OF THE PRECAUTIONS WHEN

PETROLEUM-BASE HYDRAULIC FLUID IS USED.

• DO NOT USE IN AREAS WHERE THERE IS HIGH HEAT, SPARKS, OR

FLAMES.

• USE IN AN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET PETROLEUM-BASE HYDRAULIC FLUID IN THE EYES, ON

THE SKIN, OR ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS OR MIST.

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

A. Protect shock strut pistons by coating exposed portions with hydraulic fluid.

B. Wipe exposed actuating rods and pistons using Skydrol hydraulic fluid.

C. Wrap exposed portions of pistons and struts with greaseproof, waterproof

paper, or polyethylene film. Secure with masking film.

NOTE: If aircraft is to be moved to a permanent place of storage, this item may be deferred

until final parking.

7. Move the flaps and slats to the up position, ailerons, and spoilers to the faired

position. Secure the elevators and rudder in the neutral position.

Initial

Storage

WARNING: PETROLEUM-BASE HYDRAULIC FLUID IS AN AGENT THAT IS FLAMMABLE AND AN

IRRITANT. MAKE SURE ALL PERSONS OBEY ALL OF THE PRECAUTIONS WHEN

PETROLEUM-BASE HYDRAULIC FLUID IS USED.

• DO NOT USE IN AREAS WHERE THERE IS HIGH HEAT, SPARKS, OR

FLAMES.

• USE IN AN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET PETROLEUM-BASE HYDRAULIC FLUID IN THE EYES, ON

THE SKIN, OR ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS OR MIST.

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Table 203.

STEP ITEM WHEN

PERFORMED

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

A. Coat exposed surfaces of actuating rods and cylinders with Skydrol hydraulic

fluid and wrap with greaseproof, waterproof paper. Secure with masking

film.

B. Use masking film to seal minor control surface gaps. Use polyethylene film

secured with masking film for larger openings.

8. Close all control surface access doors and covers. Initial

Storage

A. L.H. Wing Leading Edge ( WING ZONES AND ACCESS DOORS -

DESCRIPTION AND OPERATION, PAGEBLOCK 06-21-00/001 Config 1 or

WING ZONES AND ACCESS DOORS - DESCRIPTION AND OPERATION,

PAGEBLOCK 06-21-00/001 Config 2 )

B. L.H. Wing Trailing Edge ( WING ZONES AND ACCESS DOORS -

DESCRIPTION AND OPERATION, PAGEBLOCK 06-21-00/001 Config 1 or

WING ZONES AND ACCESS DOORS - DESCRIPTION AND OPERATION,

PAGEBLOCK 06-21-00/001 Config 2 )

C. R.H. Wing Leading Edge ( WING ZONES AND ACCESS DOORS -

DESCRIPTION AND OPERATION, PAGEBLOCK 06-21-00/001 Config 1 or

WING ZONES AND ACCESS DOORS - DESCRIPTION AND OPERATION,

PAGEBLOCK 06-21-00/001 Config 2 )

D. R.H. Wing Trailing Edge ( WING ZONES AND ACCESS DOORS -

DESCRIPTION AND OPERATION, PAGEBLOCK 06-21-00/001 Config 1 or

WING ZONES AND ACCESS DOORS - DESCRIPTION AND OPERATION,

PAGEBLOCK 06-21-00/001 Config 2 )

E. Vertical Stabilizer ( PAGEBLOCK 06-23-00/001 )

F. Horizontal Stabilizer ( PAGEBLOCK 06-23-00/001 )

NOTE: Make sure all bushings, bearings, and control cables are properly protected.

B. Aircraft Engines - General Preservation Procedures

Table 204.

STEP ITEM WHEN

PERFORMED

1. Preserve aircraft engines Initial

Storage

NOTE: The following procedures apply to short term and long term aircraft storage.

NOTE: Bagged desiccant may be placed in plastic tubes.

NOTE: Do not allow desiccant bags to come in contact with engine, APU, or surrounding

structure. Place desiccant bags on racks, polyethylene film, waterproof, or vaporproof

barrier material.

A. Attach humidity indicators so they are visible from outside, but are covered

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Table 204.

STEP ITEM WHEN

PERFORMED

to prevent fading by sunlight.

WARNING: DRY CLEANING SOLVENT IS AN AGENT THAT IS FLAMMABLE, POISONOUS, AND AN

IRRITANT. MAKE SURE ALL PERSONS OBEY ALL OF THE PRECAUTIONS WHEN DRY

CLEANING SOLVENT IS USED.

• GAS/AIR MIXTURES MORE THAN THE LOWER EXPLOSIVE LIMIT (LEL)

CAN CAUSE AN EXPLOSION IF HIGH HEAT, SPARKS, OR FLAMES

SUPPLY IGNITION.

• USE IN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET DRY CLEANING SOLVENT IN THE EYES, ON THE SKIN, OR

ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

B. Clean areas of tape installation using P-D-680 solvent. Be careful not to

remove protective coating.

WARNING: CORROSION PREVENTIVE (FINGERPRINT REMOVER) IS AN AGENT THAT IS

FLAMMABLE, POISONOUS AND AN IRRITANT. MAKE SURE ALL PERSONS OBEY ALL

OF THE PRECAUTIONS WHEN CORROSION PREVENTIVE (FINGERPRINT REMOVER)

IS USED.

• DO NOT USE IN AREAS WHERE THERE IS HIGH HEAT, SPARKS, OR

FLAMES.

• USE IN AN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET CORROSION PREVENTIVE (FINGERPRINT REMOVER) IN

THE EYES, ON THE SKIN, OR ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

(1) Remove fingerprint residue using fingerprint remover.

NOTE: Do not use chlorinated solvents.

WARNING: USE THE HAZARDOUS MATERIAL WARNINGS GIVEN BELOW FOR THE STEPS THAT

FOLLOW.

THE HAZARDOUS MATERIAL WARNINGS ARE LISTED AFTER THE INTRODUCTION

SECTION IN THE FRONT OF THE AMM.

HAZARDOUS MATERIAL WARNINGS

HAZMAT 1403, DESSICANT/ACTIVATED/BAGGED (DPM 5265)

HAZMAT 1000, REFER TO MSDS

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Table 204.

STEP ITEM WHEN

PERFORMED

(2) After preservation and installation of desiccant, seal all engine and APU

compartment openings with designated closures, polyethylene film

and/or tape.

(3) Tag cockpit controls with date and method of aircraft preservation.

C. Engine Storage Less Than 7 Days

Table 205.

STEP ITEM WHEN

PERFORMED

1. Engines may be left in an inactive status with no preservation protective

requirements provided:

Initial Storage

A. Engine inlet and exhaust covers are installed.

B. Humidity is not excessively high.

C. Engines are not subjected to extreme temperature changes which would

produce condensation.

D. Engine Storage 7 to 28 Days

Table 206.

STEP ITEM WHEN PERFORMED

WARNING: USE THE HAZARDOUS MATERIAL WARNINGS GIVEN BELOW FOR THE STEPS THAT

FOLLOW.

THE HAZARDOUS MATERIAL WARNINGS ARE LISTED AFTER THE INTRODUCTION

SECTION IN THE FRONT OF THE AMM.

HAZARDOUS MATERIAL WARNINGS

HAZMAT 1403, DESSICANT/ACTIVATED/BAGGED (DPM 5265)

HAZMAT 1000, REFER TO MSDS

1. Place approximately 26 pounds (11.79 kg) of desiccant in engine

inlet and exhaust.

Initial Storage

NOTE: Desiccant may be placed in plastic tubes.

NOTE: Do not allow desiccant bags to come in contact with engine or surrounding structure.

Place bags on racks, polyethylene film, barrier material or equivalent.

2. Install a humidity indicator plug in engine intake and exhaust

covers. Install indicator card into indicator plug. Humidity

indicators are to be visible from outside, but covered to prevent

fading by sunlight.

Initial Storage

WARNING: DRY CLEANING SOLVENT IS AN AGENT THAT IS FLAMMABLE, POISONOUS, AND AN

IRRITANT. MAKE SURE ALL PERSONS OBEY ALL OF THE PRECAUTIONS WHEN DRY

CLEANING SOLVENT IS USED.

• GAS/AIR MIXTURES MORE THAN THE LOWER EXPLOSIVE LIMIT (LEL)

CAN CAUSE AN EXPLOSION IF HIGH HEAT, SPARKS, OR FLAMES

SUPPLY IGNITION.

• USE IN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET DRY CLEANING SOLVENT IN THE EYES, ON THE SKIN, OR

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Table 206.

STEP ITEM WHEN PERFORMED

ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

3. Install engine intake and exhaust covers. Cap, or plug all engine

openings. ( PARKING - MAINTENANCE PRACTICES,

PAGEBLOCK 10-10-00/201 )

Initial Storage

NOTE: Clean areas of tape installation using P-D-680 solvent, being careful not to remove

protective coating and remove any fingerprint residue using finger- print remover.

NOTE: Do not use chlorinated solvents.

4. Tag power control levers (throttle levers) and oil filler caps. Note

date and preservation method used.

Initial Storage

5. Check the preserved engine. Every 14 days if aircraft is

stored outside. Every 30

days if aircraft is stored

inside.

NOTE: If the relative humidity, as indicated by the humidity indicators, is 40% or less, no

further action is necessary. If the relative humidity exceeds 40%, the engine including

fuel and oil systems, should be depreserved and represerved.

NOTE: The only required depreservation for engines in this category is removal of all engine

closures, plugs or caps, and desiccant bags from the engine prior to starting.

E. Engine Storage 28 to 90 Days

Table 207.

STEP ITEM WHEN

PERFORMED

NOTE: Engine oil system does not require preservation when storage is for a period of 90 days,

or less.

1. Engine fuel system preservation. Initial

Storage

WARNING: JET FUELS A AND A-1 (JP-5 FUEL) ARE AGENTS THAT ARE, FLAMMABLE,

EXPLOSIVE, POISONOUS AND IRRITANTS. MAKE SURE ALL PERSONS OBEY THE

PRECAUTIONS WHEN JET FUELS A AND A-1 (JP-5 FUEL) ARE USED.

• GAS/AIR MIXTURES MORE THAN THE LOWER EXPLOSIVE LIMIT (LEL)

CAN CAUSE AN EXPLOSION IF HIGH HEAT, SPARKS, OR FLAMES

SUPPLY IGNITION.

• USE IN AN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET JET FUELS A AND A-1 (JP-5 FUEL)IN THE EYES, ON THE

SKIN, OR ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

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Table 207.

STEP ITEM WHEN

PERFORMED

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

A. Disconnect fuel-in supply at inlet pad of fuel pump and connect a supply of

filtered (10 micron filter is recommended) jet engine oil (MIL-L-6081, Grade

1010, or equivalent) at an inlet pressure of 5 to 25 psi and a minimum

temperature of 60°F to the fuel pump.

NOTE: Extreme care should be taken to prevent foreign material from entering the engine oil

system.

B. Remove fuel pressurizing and dump valve strainer and cover at rear of

pressurizing and dump valve. ( FUEL PRESSURIZING AND DUMP VALVE -

MAINTENANCE PRACTICES, PAGEBLOCK 73-13-05/201 )

C. Install PWA 12386 adapter on pressurizing and dump valve in place of the

cover.

D. Attach a standard hose from the adapter to a suitable container having a

minimum capacity of six gallons.

E. Open ignition circuit breaker to de-energize the engine ignition system.

F. With the ignition switch "OFF" and the fuel shut-off valves "OPEN", move

the fuel control lever (throttle lever) to the full "OPEN" position.

G. Motor the engine with the starter at a minimum N2 speed of 1600 rpm until

at least two gallons of oil are discharged from the pressurizing and dump

valve strainer cavity. During the motoring period, move the throttle lever

from "OPEN" to "CLOSED" to "OPEN" to purge the bypass system. (

GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501 Config 6 or

GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501 Config 9 )

2. Sundstrand Constant Speed Drive preservation Initial

Storage

A. Remove the magnetic drain plug and the reservoir drain plug located on the

bottom of the CSD. ( CONSTANT SPEED DRIVE (CSD) TRANSMISSION -

SERVICING, PAGEBLOCK 12-12-02/301 )

B. Check magnetic drain plug for contamination.

WARNING: DRY CLEANING SOLVENT IS AN AGENT THAT IS FLAMMABLE, POISONOUS, AND AN

IRRITANT. MAKE SURE ALL PERSONS OBEY ALL OF THE PRECAUTIONS WHEN DRY

CLEANING SOLVENT IS USED.

• GAS/AIR MIXTURES MORE THAN THE LOWER EXPLOSIVE LIMIT (LEL)

CAN CAUSE AN EXPLOSION IF HIGH HEAT, SPARKS, OR FLAMES

SUPPLY IGNITION.

• USE IN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET DRY CLEANING SOLVENT IN THE EYES, ON THE SKIN, OR

ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

American Airlines

Printed: 8/31/2015; 1:31pm.

Rel. 36.0 - 08/20/15

LAA_MD80

AIRCRAFT MAINTENANCE MANUAL

PGBLK EFFECTIVITY: AAL ALL 10-30-00-201

02/01/2015

BOEING PROPRIETARY - Copyright © Unpublished Work Page 11 of 26   

For Reference Only 
Table 207.

STEP ITEM WHEN

PERFORMED

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

C. Remove filters, check filter condition, clean with P-D-680 solvent, and

reinstall filters.

NOTE: Do not use chlorinated solvents.

D. With the drain plug removed, pour new oil into the constant speed drive

until the oil pours out of the drain.

E. Close and safety with lockwire the magnetic drain plug and the reservoir

drain plug. ( CONSTANT SPEED DRIVE (CSD) TRANSMISSION -

SERVICING, PAGEBLOCK 12-12-02/301 ) ( LOCKWIRE SAFETYING -

MAINTENANCE PRACTICES, PAGEBLOCK 20-10-18/201 )

F. Fill the constant speed drive with oil. ( CONSTANT SPEED DRIVE (CSD)

TRANSMISSION - SERVICING, PAGEBLOCK 12-12-02/301 )

3. Pneumatic starter preservation. Initial

Storage

A. Remove the drain plug and allow oil to drain. ( ENGINE PNEUMATIC

STARTER - SERVICING, PAGEBLOCK 12-12-05/301 )

B. When the oil has drained, reinstall the plug.

C. Remove oil filler cap from starter.

D. Pour 100 cc (3.4 fluid ounces) of MIL-L-7808 or MIL-L-23699 oil into

starter.

E. Install oil filler cap.

F. Motor engine to lubricate internal components of constant speed drive and

engine starter. ( GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501

 Config 6 or GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501

 Config 9 )

G. Remove oil drain plug from starter.

H. Drain oil from starter.

I. When the oil has drained reinstall the drain plug and safety with lockwire. (

LOCKWIRE SAFETYING - MAINTENANCE PRACTICES, PAGEBLOCK 20-10-

18/201 )

J. Wipe external surface of starter.

K. Attach warning tag to starter to indicate starter oil has been drained.

4. Tag the cockpit throttle levers and the engine oil filler caps noting the date and

preservation method used.

Initial

Storage

5. Attach a humidity indicator plug and indicator card to the engine intake and

exhaust covers.

Initial

Storage

NOTE: Attach humidity indicators as to be visible from the outside, but covered to prevent

fading by sunlight.

WARNING: USE THE HAZARDOUS MATERIAL WARNINGS GIVEN BELOW FOR THE STEPS THAT

FOLLOW.

American Airlines

Printed: 8/31/2015; 1:31pm.

Rel. 36.0 - 08/20/15

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AIRCRAFT MAINTENANCE MANUAL

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For Reference Only 
Table 207.

STEP ITEM WHEN

PERFORMED

THE HAZARDOUS MATERIAL WARNINGS ARE LISTED AFTER THE INTRODUCTION

SECTION IN THE FRONT OF THE AMM.

HAZARDOUS MATERIAL WARNINGS

HAZMAT 1403, DESSICANT/ACTIVATED/BAGGED (DPM 5265)

HAZMAT 1000, REFER TO MSDS

6. Place approximately 26 pounds (11.79 kg) of desiccant in engine inlet and

exhaust.

Initial

Storage

7. Install engine intake and exhaust covers. ( PAGEBLOCK 10-10-00/001 ) Initial

Storage

NOTE: If engine intake and exhaust covers contain pneumatic tubes, inflate tubes to 2 psi with

compressed air.

8. Check the preserved engines. Every 14

days if

aircraft is

stored

outside.

Every 30

days if

aircraft is

stored inside.

NOTE: If the relative humidity, as indicated by the humidity indicators, is 40% or less, no

further action is necessary. If the relative humidity exceeds 40%, the engine, including

fuel and oil systems should be depreserved and represerved.

F. Engine Storage More Than 90 Days

Table 208.

STEP ITEM WHEN

PERFORMED

1. Start and operate engine for five minutes at 75 percent maximum continuous

operation. ( GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501

 Config 6 or GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501

 Config 9 )

Initial

Storage

2. Shutdown engine. ( GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501

 Config 6 or GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501

 Config 9 )

Initial

Storage

3. Engine Fuel System preservation Initial

Storage

WARNING: JET FUELS A AND A-1 (JP-5 FUEL) ARE AGENTS THAT ARE, FLAMMABLE,

EXPLOSIVE, POISONOUS AND IRRITANTS. MAKE SURE ALL PERSONS OBEY THE

PRECAUTIONS WHEN JET FUELS A AND A-1 (JP-5 FUEL) ARE USED.

• GAS/AIR MIXTURES MORE THAN THE LOWER EXPLOSIVE LIMIT (LEL)

CAN CAUSE AN EXPLOSION IF HIGH HEAT, SPARKS, OR FLAMES

SUPPLY IGNITION.

• USE IN AN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET JET FUELS A AND A-1 (JP-5 FUEL)IN THE EYES, ON THE

SKIN, OR ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

American Airlines

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Rel. 36.0 - 08/20/15

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For Reference Only 
Table 208.

STEP ITEM WHEN

PERFORMED

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

CAUTION: EXTREME CARE SHOULD BE TAKEN TO PREVENT FOREIGN MATERIAL FROM BEING

DRAWN INTO THE ENGINE FUEL SYSTEM.

A. Disconnect fuel-in supply at inlet pad of fuel pump and connect a supply of

filtered flushing oil at an inlet pressure of 5 to 25 psi and a minimum

temperature of 60°F.

NOTE: Equipment should be provided with suitable filters or strainers of no coarser mesh than

used in the engine. A 10 micron filter is recommended for this purpose.

NOTE: Filtered flushing oil should be a light mineral based oil equivalent to MIL-L-6081, Grade

1010 which is mixable with fuel and test fluids and compatible with fuel system

materials.

B. Remove pressurizing and dump valve strainer and cover at rear of

pressurizing and dump valve. ( FUEL PRESSURIZING AND DUMP VALVE -

MAINTENANCE PRACTICES, PAGEBLOCK 73-13-05/201 )

C. Install PWA-12386 adapter on pressurizing and dump valve in place of the

cover.

D. Attach a standard hose from the adapter to a suitable container having a

minimum capacity of six gallons.

E. Open ignition circuit breaker to de-energize the engine ignition system.

F. With the ignition switch OFF and the fuel shutoff valves OPEN, move the

fuel control lever to the full OPEN position.

WARNING: JET ENGINE OIL LUBRICANT (GRADE 1010) IS AN AGENT THAT IS POISONOUS AND

AN IRRITANT. MAKE SURE ALL PERSONS OBEY THE PRECAUTIONS WHEN JET

ENGINE OIL LUBRICANT IS USED.

• DO NOT USE IN AREAS WHERE THERE IS HIGH HEAT, SPARKS, OR

FLAMES.

• USE IN AN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET JET ENGINE OIL LUBRICANT IN THE EYES, ON SKIN, OR

ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

G. Motor the engine with the starter at a minimum N2 speed of 1600 rpm until

at least two gallons of oil are discharged from the pressurizing and dump

valve filter cavity. During the motoring period, the power control lever

should be moved from OPEN to CLOSED to OPEN to purge the bypass

American Airlines

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Rel. 36.0 - 08/20/15

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AIRCRAFT MAINTENANCE MANUAL

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For Reference Only 
Table 208.

STEP ITEM WHEN

PERFORMED

system. ( GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501

 Config 6 or GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501

 Config 9 )

H. Replace the pressurizing and dump valve filter cover using new O-rings and

connect the fuel supply line. ( FUEL PRESSURIZING AND DUMP VALVE -

MAINTENANCE PRACTICES, PAGEBLOCK 73-13-05/201 )

I. The power control lever should be tagged as to the preservative method

used and date of preservation.

4. Drain engine oil system. Initial

Storage

A. Open the drain on the bottom of the oil tank and remove the drain plug

from the bottom of the main accessory gearbox. Drain oil into suitable

containers. ( ENGINE OIL SYSTEM - SERVICING, PAGEBLOCK 12-12-04/301

)

NOTE: Plug and connector may be removed from standpipe outlet to facilitate draining, and to

drain CSD cavity.

B. With the drains open, motor the engine with the starter to 1600 minimum

rpm. This allows the scavenge pumps to clear the engine. ( GENERAL -

ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501 Config 6 or GENERAL -

ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501 Config 9 )

Initial

Storage

NOTE: Engine clearing is indicated by cessation of steady stream of oil from drains. Engine will

have only limited lubrication. Engine motoring time should be restricted to the minimum

necessary to accomplish draining.

WARNING: DRY CLEANING SOLVENT IS AN AGENT THAT IS FLAMMABLE, POISONOUS, AND AN

IRRITANT. MAKE SURE ALL PERSONS OBEY ALL OF THE PRECAUTIONS WHEN DRY

CLEANING SOLVENT IS USED.

• GAS/AIR MIXTURES MORE THAN THE LOWER EXPLOSIVE LIMIT (LEL)

CAN CAUSE AN EXPLOSION IF HIGH HEAT, SPARKS, OR FLAMES

SUPPLY IGNITION.

• USE IN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET DRY CLEANING SOLVENT IN THE EYES, ON THE SKIN, OR

ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

5. Remove the oil filter element. Rinse the filter element in P-D-680 solvent. (

ENGINE MAIN OIL FILTER- MAINTENANCE PRACTICES, PAGEBLOCK 79-20-

06/201 Config 2 )

Initial

Storage

6. Allow the engine oil to drain to a slow drip for approximately one-half hour. Initial

Storage

7. Install the oil filter and close the previously opened engine oil drains. ( ENGINE

MAIN OIL FILTER- MAINTENANCE PRACTICES, PAGEBLOCK 79-20-06/201

 Config 2 )

Initial

Storage

8. Fill the engine oil tank to the operating level with engine oil. ( ENGINE OIL

SYSTEM - SERVICING, PAGEBLOCK 12-12-04/301 )

Initial

Storage

9. Motor the engine with the starter. After oil pressure, N1 rpm, and N2 rpm are

indicated, discontinue motoring operation. ( GENERAL - ADJUSTMENT/TEST,

PAGEBLOCK 71-00-00/501 Config 6 or GENERAL - ADJUSTMENT/TEST,

PAGEBLOCK 71-00-00/501 Config 9 )

Initial

Storage

American Airlines

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Rel. 36.0 - 08/20/15

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For Reference Only 
Table 208.

STEP ITEM WHEN

PERFORMED

10. Open the drain on the bottom of the oil tank and remove the drain plug from

the bottom of the main accessory gearbox. Drain oil in suitable containers. (

ENGINE OIL SYSTEM - SERVICING, PAGEBLOCK 12-12-04/301 )

Initial

Storage

NOTE: Plug and connector may be removed from standpipe outlet to facilitate draining and to

drain CSD cavity.

11. Close oil tank drain. Coat main gearbox drain plugs with new engine oil and

reinstall connector with packing and drain plugs. Lockwire plugs. ( LOCKWIRE

SAFETYING - MAINTENANCE PRACTICES, PAGEBLOCK 20-10-18/201 )

Initial

Storage

12. Remove cover plates from the pads of accessory drives upon which accessories

are not installed and spray exposed surfaces with new engine oil. Reinstall

cover plates.

Initial

Storage

13. Tag oil filler caps, indicating date of oil system preservation. Initial

Storage

14. Pneumatic starter preservation Initial

Storage

A. Remove the drain plug. When the oil has drained, reinstall the drain plug. (

ENGINE PNEUMATIC STARTER - SERVICING, PAGEBLOCK 12-12-05/301 )

B. Open the starter oil fill plug. ( ENGINE PNEUMATIC STARTER - SERVICING,

PAGEBLOCK 12-12-05/301 )

C. Pour 100 cc (approximately 3.4 fluid ounces) of MIL-L-7808 or MIL-L-23699

oil into starter. ( ENGINE PNEUMATIC STARTER - SERVICING,

PAGEBLOCK 12-12-05/301 )

D. Close the starter oil fill plug. ( ENGINE PNEUMATIC STARTER - SERVICING,

PAGEBLOCK 12-12-05/301 )

E. Motor the engine to lubricate internal components of the starter. ( GENERAL

- ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501 Config 6 or GENERAL -

ADJUSTMENT/TEST, PAGEBLOCK 71-00-00/501 Config 9 )

F. Remove the drain plug. When the oil has drained, reinstall the drain plug.

G. Wipe clean external surface of the starter.

H. Attach a warning tag to the starter to indicate it has been drained of oil.

15. Sundstrand Constant Speed Drive preservation. Initial

Storage

A. Remove the magnetic drain plug and the reservoir drain plug located on the

bottom of the CSD. When the oil has drained, close the open drains. (

CONSTANT SPEED DRIVE (CSD) TRANSMISSION - SERVICING,

PAGEBLOCK 12-12-02/301 )

WARNING: DRY CLEANING SOLVENT IS AN AGENT THAT IS FLAMMABLE, POISONOUS, AND AN

IRRITANT. MAKE SURE ALL PERSONS OBEY ALL OF THE PRECAUTIONS WHEN DRY

CLEANING SOLVENT IS USED.

• GAS/AIR MIXTURES MORE THAN THE LOWER EXPLOSIVE LIMIT (LEL)

CAN CAUSE AN EXPLOSION IF HIGH HEAT, SPARKS, OR FLAMES

SUPPLY IGNITION.

• USE IN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET DRY CLEANING SOLVENT IN THE EYES, ON THE SKIN, OR

ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

American Airlines

Printed: 8/31/2015; 1:31pm.

Rel. 36.0 - 08/20/15

LAA_MD80

AIRCRAFT MAINTENANCE MANUAL

PGBLK EFFECTIVITY: AAL ALL 10-30-00-201

02/01/2015

BOEING PROPRIETARY - Copyright © Unpublished Work Page 16 of 26   

For Reference Only 
Table 208.

STEP ITEM WHEN

PERFORMED

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

B. Remove filters, inspect, clean with P-D-680 solvent, and reinstall. (

PAGEBLOCK 24-10-02/201 )

Do not use

chlorinated

solvents

C. Fill the unit with the specified engine lubricating oil. ( CONSTANT SPEED

DRIVE (CSD) TRANSMISSION - SERVICING, PAGEBLOCK 12-12-02/301 )

WARNING: USE THE HAZARDOUS MATERIAL WARNINGS GIVEN BELOW FOR THE STEPS THAT

FOLLOW.

THE HAZARDOUS MATERIAL WARNINGS ARE LISTED AFTER THE INTRODUCTION

SECTION IN THE FRONT OF THE AMM.

HAZARDOUS MATERIAL WARNINGS

HAZMAT 1403, DESSICANT/ACTIVATED/BAGGED (DPM 5265)

HAZMAT 1000, REFER TO MSDS

16. Install 26 pounds (11.79 kg) of desiccant in the engine compartment. Initial

Storage

17. Install 13 pounds (5.90 kg) of desiccant in the engine inlet. Initial

Storage

18. Install 13 pounds (5.90 kg) of desiccant in the engine exhaust. Initial

Storage

19. Plugs, caps, covers, or screens should be installed over all openings to prohibit

entrance of foreign material and accumulation of moisture.

Initial

Storage

20. Using an airtight moisture barrier or other suitable covers, cover the air inlet

and exhaust end of the engine compartment.

Initial

Storage

21. Install a humidity indicator in the engine inlet and exhaust. Inspection

windows at each end should be provided through which the indicators will be

visible.

Initial

Storage

22. Check the preserved engine. Every 14

days if

aircraft is

stored

outside.

Every 30

days if

aircraft is

stored inside.

NOTE: If the relative humidity, as indicated on the humidity cards is 40% or less, no further

action is required. If humidity indicator on desiccant bags indicates 40%, or higher,

entire engine system, including fuel and oil systems should be depreserved and

represerved.

G. APU Storage Up to 180 Days

Table 209.

American Airlines

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Rel. 36.0 - 08/20/15

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For Reference Only 
STEP ITEM WHEN

PERFORMED

NOTE: The following procedures apply to both the GTCP85 and GTCP36-280 series APUs unless

otherwise noted.

1. Operate the APU at no-load, governed speed for at least 5 minutes. Initial

Storage

2. Shut down APU, and complete preservation procedures while APU is hot. Initial

Storage

WARNING: USE THE HAZARDOUS MATERIAL WARNINGS GIVEN BELOW FOR THE STEPS THAT

FOLLOW.

THE HAZARDOUS MATERIAL WARNINGS ARE LISTED AFTER THE INTRODUCTION

SECTION IN THE FRONT OF THE AMM.

HAZARDOUS MATERIAL WARNINGS

HAZMAT 1403, DESSICANT/ACTIVATED/BAGGED (DPM 5265)

HAZMAT 1000, REFER TO MSDS

3. Place the required number of 16-unit size desiccant bags in the APU. Initial

Storage

A. 4 bags just inside the aircraft APU inlet.

B. 4 bags just inside the aircraft APU exhaust.

C. 4 bags inside the APU compartment.

4. Install a humidity indicator plug in the APU inlet and exhaust covers or install,

behind a clear view opening in the inlet and exhaust covers, a humidity

indicator card.

Initial

Storage

5. Install the APU inlet and exhaust covers. ( PAGEBLOCK 10-10-00/201 ) Initial

Storage

6. Cap, plug, or seal, as applicable, all openings leading into the interior of the

APU and the APU compartment.

Initial

Storage

WARNING: DRY CLEANING SOLVENT IS AN AGENT THAT IS FLAMMABLE, POISONOUS, AND AN

IRRITANT. MAKE SURE ALL PERSONS OBEY ALL OF THE PRECAUTIONS WHEN DRY

CLEANING SOLVENT IS USED.

• GAS/AIR MIXTURES MORE THAN THE LOWER EXPLOSIVE LIMIT (LEL)

CAN CAUSE AN EXPLOSION IF HIGH HEAT, SPARKS, OR FLAMES

SUPPLY IGNITION.

• USE IN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET DRY CLEANING SOLVENT IN THE EYES, ON THE SKIN, OR

ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

A. Clean areas of tape installation using P-D-680 solvent, being careful not to

remove protective coating. Remove any fingerprint residue using fingerprint

remover.

American Airlines

Printed: 8/31/2015; 1:31pm.

Rel. 36.0 - 08/20/15

LAA_MD80

AIRCRAFT MAINTENANCE MANUAL

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02/01/2015

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For Reference Only 
Table 209.

STEP ITEM WHEN

PERFORMED

NOTE: Do not use chlorinated solvents.

7. Tag the APU master switch noting all pertinent preservation data. Initial

Storage

8. Check the preserved APU. Periodically

NOTE: If the relative humidity is 40% or less, no further action is necessary. If the humidity

indications are higher than 40%, replace the desiccant and the indicator cards, or

humidity indicator plugs.

NOTE: The only required depreservation for the APU preserved under this method is removal of

all closures, caps, humidity indicator plugs, and desiccant from the APU prior to starting.

WARNING: USE THE HAZARDOUS MATERIAL WARNINGS GIVEN BELOW FOR THE STEPS THAT

FOLLOW.

THE HAZARDOUS MATERIAL WARNINGS ARE LISTED AFTER THE INTRODUCTION

SECTION IN THE FRONT OF THE AMM.

HAZARDOUS MATERIAL WARNINGS

HAZMAT 1403, DESSICANT/ACTIVATED/BAGGED (DPM 5265)

HAZMAT 1000, REFER TO MSDS

H. APU Storage 180 to 365 Days

Table 210.

STEP ITEM WHEN

PERFORMED

NOTE: After 365 days in storage the APU must be removed from the aircraft and stored in a

sealed container.

NOTE: The following procedures apply to both the GTCP85 and GTCP36-280 series APUs unless

otherwise noted.

1. Operate APU at least 5 minutes at no-load governed speed. ( GENERAL -

ADJUSTMENT/TEST, PAGEBLOCK 49-00-00/501 Config 3 or GENERAL -

ADJUSTMENT/TEST, PAGEBLOCK 49-00-00/501 Config 4 or GENERAL -

ADJUSTMENT/TEST, PAGEBLOCK 49-00-00/501 Config 5 )

Initial

Storage

2. Shut down APU, and complete preservation while APU is hot. Initial

Storage

WARNING: JET FUELS A AND A-1 (JP-5 FUEL) ARE AGENTS THAT ARE, FLAMMABLE,

EXPLOSIVE, POISONOUS AND IRRITANTS. MAKE SURE ALL PERSONS OBEY THE

PRECAUTIONS WHEN JET FUELS A AND A-1 (JP-5 FUEL) ARE USED.

• GAS/AIR MIXTURES MORE THAN THE LOWER EXPLOSIVE LIMIT (LEL)

CAN CAUSE AN EXPLOSION IF HIGH HEAT, SPARKS, OR FLAMES

SUPPLY IGNITION.

• USE IN AN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET JET FUELS A AND A-1 (JP-5 FUEL)IN THE EYES, ON THE

SKIN, OR ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

WARNING: JET ENGINE OIL LUBRICANT (GRADE 1010) IS AN AGENT THAT IS POISONOUS AND

AN IRRITANT. MAKE SURE ALL PERSONS OBEY THE PRECAUTIONS WHEN JET

ENGINE OIL LUBRICANT IS USED.

American Airlines

Printed: 8/31/2015; 1:31pm.

Rel. 36.0 - 08/20/15

LAA_MD80

AIRCRAFT MAINTENANCE MANUAL

PGBLK EFFECTIVITY: AAL ALL 10-30-00-201

02/01/2015

BOEING PROPRIETARY - Copyright © Unpublished Work Page 19 of 26   

For Reference Only 
Table 210.

STEP ITEM WHEN

PERFORMED

• DO NOT USE IN AREAS WHERE THERE IS HIGH HEAT, SPARKS, OR

FLAMES.

• USE IN AN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET JET ENGINE OIL LUBRICANT IN THE EYES, ON SKIN, OR

ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS.

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

3. On the GTCP85 series APU perform the following: Initial

Storage

A. Disconnect aircraft to APU fuel line. and stow line. Cap

B. Remove APU low pressure fuel line between fuel control unit and ground

check-out panel.

C. Disconnect fuel line at fuel atomizer.

D. Connect overboard drain line to fuel line, and direct drain line into a

container.

CAUTION: EXTREME CARE SHOULD BE TAKEN TO PREVENT FOREIGN MATERIAL FROM BEING

DRAWN INTO THE ENGINE FUEL SYSTEM.

4. On the GTCP36-280 series APU perform the following steps: Initial

Storage

A. Disconnect fuel flow divider at fuel inlet connection.

B. Disconnect primary fuel manifold and let fuel drain overboard.

C. Connect fuel flow divider line.

CAUTION: COMPRESSOR INLET MUST NOT BE SPRAYED WITH PRESERVATIVE OIL AT ANY TIME

OR SMOKE AND FUMES WILL ENTER BLEED AIR SYSTEM ON ENGINE START.

5. Connect a source of preservation oil (MIL-L-6081, Grade 1010) to fuel inlet of

fuel control, and supply at an inlet pressure of 5 to 25 psi and a minimum

temperature of 60°F.

Initial

Storage

Effective on: AAL 101-108, 110-190, 197, 201-207, 209-212, 214-326, 401-444

6. Disconnect the ignition unit primary lead. ( IGNITER PLUG LEAD -

MAINTENANCE PRACTICES, PAGEBLOCK 49-40-05/201 )

Initial

Storage

Effective on: AAL 601-703

6. Disconnect the ignition unit primary lead. ( PAGEBLOCK 49-40-02/201 ) Initial

Storage

Effective on: AAL ALL

CAUTION: ON GTCP85 SERIES DO NOT EXCEED STARTER DUTY CYCLE OF 1 MINUTE ON, 4

MINUTES OFF.

American Airlines

Printed: 8/31/2015; 1:31pm.

Rel. 36.0 - 08/20/15

LAA_MD80

AIRCRAFT MAINTENANCE MANUAL

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For Reference Only 
Table 210.

STEP ITEM WHEN

PERFORMED

CAUTION: ON GTCP36-280 SERIES DO NOT OPERATE STARTER MORE THAN STARTER MOTOR

DUTY CYCLE OF THREE STARTS, FOLLOWED BY A COOLING PERIOD OF 60 MINUTES.

ALLOW COOLING PERIOD OF 60 SECONDS BETWEEN START ATTEMPTS.

7. Push the Master Switch to START, and motor the APU until at least one gallon of

oil is discharged into the container, and then release the Master Switch. (

GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 49-00-00/501 Config 3 or

GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 49-00-00/501 Config 4 or

GENERAL - ADJUSTMENT/TEST, PAGEBLOCK 49-00-00/501 Config 5 )

Initial

Storage

8. Reconnect primary and secondary fuel manifold lines, fuel inlet line, ignition

primary lead, and APU fuel shutoff valve connector.

Initial

Storage

WARNING: USE THE HAZARDOUS MATERIAL WARNINGS GIVEN BELOW FOR THE STEPS THAT

FOLLOW.

THE HAZARDOUS MATERIAL WARNINGS ARE LISTED AFTER THE INTRODUCTION

SECTION IN THE FRONT OF THE AMM.

HAZARDOUS MATERIAL WARNINGS

HAZMAT 1403, DESSICANT/ACTIVATED/BAGGED (DPM 5265)

HAZMAT 1000, REFER TO MSDS

9. Place the required number of 16-unit size desiccant bags in the APU. Initial

Storage

A. 4 bags just inside the aircraft APU inlet.

B. 4 bags just inside the aircraft APU exhaust.

C. 4 bags inside the APU compartment.

NOTE: Do not allow desiccant bags to come in contact with engine, APU, or surrounding

structure.

10. Install a humidity indicator plug in the intake and exhaust covers or install,

behind a clear view opening in the intake and exhaust covers, a humidity

indicator card.

Initial

Storage

11. Install the intake and exhaust covers. Cap, plug, or seal, as applicable, all

openings leading into the interior of the APU and APU compartment.

Initial

Storage

12. Tag the Master Switch, noting all pertinent preservation data. Initial

Storage

13. Check the preserved engine. Periodically

NOTE: If the relative humidity is 40% or less, no further action is necessary. If the humidity

indications are higher than 40%, replace the desiccant and the indicator cards, or

humidity indicator plugs.

NOTE: The only required depreservation for the APU preserved under this method is removal of

all closures, caps, humidity plugs, and desiccant from the APU prior to starting.

I. Aircraft Interior

Table 211.

STEP ITEM WHEN

PERFORMED

1. Protect floors and carpets. Initial

Storage

American Airlines

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Rel. 36.0 - 08/20/15

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For Reference Only 
Table 211.

STEP ITEM WHEN

PERFORMED

2. Cover all cockpit and passenger seats with protective covers. Initial

Storage

3. Remove all storage and emergency batteries. ( PAGEBLOCK 24-30-01/401 ) Initial

Storage

4. Drain potable water systems and allow to air dry. Take necessary precautions to

prevent contamination. ( POTABLE WATER SUPPLY SYSTEM - SERVICING,

PAGEBLOCK 12-14-01/301 )

Initial

Storage

5. Drain and flush toilets and waste systems and leave dry. Label as inoperative

and prop open lavatory doors. ( WASTE DISPOSAL SYSTEM - SERVICING,

PAGEBLOCK 12-14-02/301 )

Initial

Storage

6. Check portable fire extinguishers for serviceable condition and replace as

required. ( PAGEBLOCK 26-20-05/201 )

Initial

Storage

WARNING: FUMES FROM FUEL OR SOLVENTS MUST NOT BE IN OR NEAR THE WORK AREA. IF

THE FUMES MIX WITH OXYGEN GAS, THEY CAN IGNITE. INJURY TO PERSONS AND

DAMAGE TO EQUIPMENT CAN OCCUR.

WARNING: PUT A CAP ON ALL OPEN CONNECTIONS. THIS WILL KEEP DIRT OR GREASE OUT OF

THE OXYGEN SYSTEM. DIRT OR GREASE IN THE OXYGEN SYSTEM CAN CAUSE A

FIRE OR AN EXPLOSION. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO

EQUIPMENT.

WARNING: MAKE SURE YOUR HANDS, TOOLS, EQUIPMENT, AND CLOTHING USED IN THE

WORK AREA DOES NOT HAVE DIRT, OIL, OR GREASE ON THEM. DO NOT LET THIS

CONTAMINATION GO INTO THE OXYGEN SYSTEM. IF THIS CONTAMINATION MIXES

WITH OXYGEN GAS, THEY CAN IGNITE. INJURY TO PERSONS AND DAMAGE TO

EQUIPMENT CAN OCCUR.

WARNING: IF CLOTHING IS EXPOSED TO OXYGEN GAS, DO NOT GO NEAR FLAMES, SPARKS OR

OTHER SOURCES OF HIGH HEAT FOR A MINIMUM OF 20 MINUTES. OXYGEN GOES

INTO THE CLOTHING AND CAUSES IT TO BECOME A FLAMMABLE MATERIAL. INJURY

TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.

7. Disengage cylinder supplied oxygen systems. Initial

Storage

A. Cylinder shutoff valves closed and system bled to atmospheric pressure.

B. Remove oxygen supply cylinders and cap openings.

C. Remove emergency cylinders.

D. Remove any components, such as regulators, on which the service life will

expire before, or shortly after, the system is to be reactivated.

E. Place crew oxygen masks in plastic bags and seal the bags.

8. Remove captain's and first officer's clocks and, if installed, any boom mikes. Initial

Storage

9. Close window shades. Initial

Storage

J. Final Operations

Table 212.

STEP ITEM WHEN

PERFORMED

American Airlines

Printed: 8/31/2015; 1:31pm.

Rel. 36.0 - 08/20/15

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For Reference Only 
Table 212.

STEP ITEM WHEN

PERFORMED

1. Landing Gear Shock Struts Initial

Storage

A. Check all landing gear shock struts for discrepancies. Repair any

discrepancies found during this check.

B. Deflate the landing gear shock struts. Attach a warning tag to each

deflated strut. This is an optional procedure and is not mandatory. ( MAIN

GEAR STRUT - SERVICING, PAGEBLOCK 32-11-02/301 )

WARNING: PETROLEUM-BASE HYDRAULIC FLUID IS AN AGENT THAT IS FLAMMABLE AND AN

IRRITANT. MAKE SURE ALL PERSONS OBEY ALL OF THE PRECAUTIONS WHEN

PETROLEUM-BASE HYDRAULIC FLUID IS USED.

• DO NOT USE IN AREAS WHERE THERE IS HIGH HEAT, SPARKS, OR

FLAMES.

• USE IN AN AREA OPEN TO THE AIR.

• CLOSE THE CONTAINER WHEN NOT USED.

• DO NOT GET PETROLEUM-BASE HYDRAULIC FLUID IN THE EYES, ON

THE SKIN, OR ON YOUR CLOTHES.

• DO NOT BREATHE THE GAS OR MIST.

WARNING: REFER TO THE APPLICABLE MANUFACTURER'S OR SUPPLIERS'S MSDS FOR:

• MORE PRECAUTIONARY DATA

• APPROVED SAFETY EQUIPMENT

• EMERGENCY MEDICAL AID.

TALK WITH THE LOCAL SAFETY DEPARTMENT OR AUTHORITIES FOR THE

PROCEDURES TO DISCARD THESE HAZARDOUS AGENTS.

C. Wipe exposed portion of pistons with a clean wiper dampened with

hydraulic fluid or corrosion preventive compound.

2. Bleed accumulators, piston and diaphragm type Initial

Storage

CAUTION: WHEN ACCUMULATORS ARE AT ZERO PRESSURE, BRAKE AND OTHER HYDRAULIC

SYSTEMS WILL BE INOPERABLE.

A. Relieve pressure on the gas side of the accumulator to zero gage

pressure.

NOTE: Bleeding of accumulators is an option, and is not mandatory.

If

accumulators

are not bled,

check

pressure

every 7 days.

B. Replace fill cap.

C. Tag systems and appropriate handles in cockpit denoting lack of hydraulic

power.

3. Clean tires and remove any foreign objects. Initial

Storage

4. Check and record, tire inflation pressure. ( TIRE PRESSURE - SERVICING,

PAGEBLOCK 12-16-01/301 )

Initial

Storage and

Weekly

American Airlines

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Table 212.

STEP ITEM WHEN

PERFORMED

5. Drain fuel sumps to remove any residual water from the fuel tanks. (

PRESSURE REFUELING - SERVICING, PAGEBLOCK 12-11-07/301 )

(See fuel

sump

drainage

chart)

A. A minimum of four hours and a maximum of 48 hours settling time shall

be allowed after engine shutdown or fuel transfer, and the water shall be

drained from each fuel tank and fuel bag sump area. A minimum of one

gallon of fuel shall be drained from each sump to ensure complete water

removal.

B. The quantity of water removed from each sump shall be determined and

recorded. The next tank draining shall be scheduled as specified in the

table below using the largest water quantity recorded.

C. Microbiological sampling is required: When the

aircraft will

exceed 30

days in

storage.

Last

Drain

Time

QUANTITY OF WATER REMOVED

(From any drain point on aircraft)

Next Drain

Time

Initial

and 7

days.

More than 4 fl. oz. (1/4 pint)

Less than 4 fl. oz.

7 Days

30 Days

30

Days

More than 4 fl. oz.

Less than 4 fl. oz.

7 Days

60 Days

60

Days

More than 4 fl. oz.

Less than 4 fl. oz.

30 Days

60 Days

6. Install tire covers made of polyethylene sheet secured with adhesive tape. Initial

Storage

7. Rotate the wheels a distance sufficient to change completely area of tire

contact with the ground (footprint area).

Every 14

days

NOTE: This is necessary to prevent flat spots on the aircraft tires.

A. If practical, rotate the wheels three (3) or more turns to redistribute

lubricant before establishing a new ground point.

B. Make certain that aircraft ground cables, and all mooring devices are

reinstalled after aircraft movement.

8. Check aircraft to make certain that all projections, such as antennas,

windshield wipers, etc., not covered specifically in previous items, that could be

subject to damage from being hit or weathering, are protected or enclosed with

polyethylene sheet and tape.

Initial

Storage

9. Cover wheel wells and other miscellaneous openings not previously covered

with polyethylene film secured with adhesive tape.

Initial

Storage

10. Close fuselage entrance and access doors. Apply decals as required. Initial

Storage

11. Check the aircraft to make sure of the integrity of all protective devices, and to

make certain that periodic checks, and/or procedures have been performed at

the proper intervals as required.

Daily (Unless

otherwise

noted)

American Airlines

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Table 212.

STEP ITEM WHEN

PERFORMED

NOTE: Any discrepancy that would reduce protection or preservation shall be shall be corrected

immediately.

12. After rainy weather, check aircraft for water entrapment inside the structure.

Make certain that any trapped water is drained or wiped dry. Ventilate the wet

area until completely dry.

After rainy

weather

13. Make certain there is not unauthorized entry, work, or component removals

made during the storage period.

Daily

K. Inspections and Procedures

Table 213.

STEP ITEM WHEN PERFORMED

1. The following are routine inspection requirements to be

performed during aircraft storage period at the

intervals listed.

NOTE: Depending on the type and duration of storage not all of the inspections are required.

A. General aircraft condition Daily

B. Ventilation Daily by convection. If temperature is

over 90°F use fan.

C. Tire inflation Weekly

D. Tire rotation Every 14 days

E. Mooring Weekly. Also as soon as practical

after winds of 35 knots (40 mph).

F. Fuel sump drain At storage, then 7 days later. (See

chart at item 81).

G. Engine and APU humidity check Every 14 days if aircraft is stored

outside. Every 30 days if aircraft is

stored inside.

H. APU run or represervation Every 28 days. Represervation

required after 120 days of storage.

I. Window, windshield and light protection Daily. Replace protective devices as

required.

J. Inspection report Weekly

K. Strut represervation After 90 days

L. Accumulator Pressure check Weekly

M. Check covers, caps, plugs, screens or seals installed

at initial storage.

Daily

N. Electrical grounding Daily

O. Corrosion Daily

P. Fuel, oil, or hydraulic fluid leaks Daily

Q. Polyethylene film and tape integrity. Daily

American Airlines

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Rel. 36.0 - 08/20/15

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American Airlines

Printed: 8/31/2015; 1:31pm.

Rel. 36.0 - 08/20/15

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AIRCRAFT MAINTENANCE MANUAL

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For Reference Only