Turnaround Procedure with an Outside Air Temperature (OAT) of between -40 DEG.C (-40 DEG.F) and -54 DEG.C(-65.2 DEG.F)

TASK 12-31-10-555-802-A
Turnaround Procedure with an Outside Air Temperature (OAT) of between -40 DEG.C (-40 DEG.F) and -54 DEG.C(-65.2 DEG.F)

1. Reason for the Job
This procedure gives additional maintenance and aircraft protection recommendations for aircraft turnaround when:

The OAT is between -40 DEG.C (-40 DEG.F) and -54 DEG.C (-65.2 DEG.F).
The aircraft is not in cold soak (i.e. electrical power and air conditioning available).
This procedure is for a maximum turnaround time of 120 min (2 hours).

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F)
No specific	1	THERMOMETER-INFRARED
No specific	AR	WARNING NOTICE(S)
98D32000005000	3	COVER-MAIN LANDING GEAR

B. Referenced Information

REFERENCE	DESIGNATION
TASK 10-11-00-555-015-A	Procedure for the Installation of Wheel Chocks on Aircraft
TASK 12-31-28-660-001-A	Cold Weather Maintenance - Fuel
TASK 12-31-32-660-001-A	Cold Weather Maintenance - Landing Gear
TASK 12-31-38-660-001-A	Cold Weather Maintenance - Water/Waste
TASK 12-31-52-660-001-A	Cold Weather Maintenance - Doors
TASK 22-61-00-710-001-A	Operational Test of the Rudder-Travel Limiting Function
TASK 22-63-00-710-001-A	Operational Test of the Yaw Damper Function
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 29-00-00-790-001-A	Check of the External Leaks of the Hydraulic Components
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
TASK 32-22-00-010-001-A	Nose Gear Doors - Ground Doors Opening
TASK 32-22-00-410-001-A	Nose Gear Doors - Ground Doors Closing
TASK 32-42-27-000-001-A	Removal of the Brake
TASK 32-42-27-400-001-A	Installation of the Brake
TASK 71-00-00-660-803-A	Prepare the Engine for Cold Weather after Shutdown
TASK 71-00-00-860-003-A	Engine Start in Cold Weather Conditions (OAT Less Than -40 Degrees)
TASK 71-00-00-860-826-A	Start the Engine - (Cold Weather)
TSM 32-42-00-810-849	Failure of the Two Hydraulic Pipes (Green System) on the Same Landing Gear (Normal Brake System Inoperative)
TASK 12-12-00-00	HYDRAULIC FLUIDS - DESCRIPTION AND OPERATION

3. Job Set-up
Subtask 12-31-10-860-062-B ** ON A/C NOT FOR ALL

A. Aircraft Configuration
(1) Park the aircraft on a flat surface. Make sure that the wheels of the Nose Landing Gear (NLG) are aligned with the aircraft axis.
(2) Make sure that the wheel chocks are in position (Ref. AMM TASK 10-11-00-555-015).
(3) On panel 110VU, make sure that the PARKING BRK control-switch is in the OFF position.

Subtask 12-31-10-941-052-B ** ON A/C NOT FOR ALL

B. Tool Specification
(1) HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F): It can supply a pressure of 0 bar (0.00 psi) to 3.5 bar (50.76 psi).
(2) THERMOMETER-INFRARED: It can measure temperatures as low as -55 DEG.C (-67.00 DEG.F).

Subtask 12-31-10-620-055-B ** ON A/C NOT FOR ALL

C. Aircraft Protection
(1) Make sure that the seals of the doors are lubricated with grease (Ref. AMM TASK 12-31-52-660-001).

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

CAUTION: INSTALL PROTECTION COVERS ON ALL THE OPENINGS IMMEDIATELY TO PREVENT DAMAGE TO THE ENGINE.

CAUTION: DAMAGE TO THE ENGINE CAN OCCUR IF SNOW AND RAIN ENTERS THE ENGINE DURING COLD WEATHER CONDITIONS. ICE CAN FORM AND PREVENT ENGINE ROTATION. ICE ON THE ROTORS CAN ALSO CAUSE ROTOR IMBALANCE. INSTALL INLET AND EXHAUST COVERS TO PREVENT MOISTURE FROM ENTERING THE ENGINE.

(2) Put the 98D32000005000 COVER-MAIN LANDING GEAR in position on the Main Landing Gear (MLG) wheels.
(3) Install the 98D32000005000 COVER-MAIN LANDING GEAR on the NLG. Make sure that it is on all the components of the steering system and the shock absorber.

NOTE: It is necessary to keep the 98D32000005000 COVER-MAIN LANDING GEAR installed on the MLG wheels and the NLG until the departure of the aircraft. It is permitted to remove them only if you do a maintenance task.

Subtask 12-31-10-620-058-A ** ON A/C NOT FOR ALL

D. Engine protection
(1) Prepare the engine for cold weather after shutdown (Ref. AMM TASK 71-00-00-660-803).

4. Procedure
Subtask 12-31-10-660-093-B ** ON A/C NOT FOR ALL

A. Electrical Power
(1) Keep the aircraft electrical circuits energized:

Energize the electrical circuits from the Auxiliary Power Unit (Ref. AMM TASK 24-41-00-861-002) or
Energize the electrical circuits from the external power (Ref. AMM TASK 24-41-00-861-002).

Subtask 12-31-10-660-081-B ** ON A/C NOT FOR ALL

B. Auxiliary Power Unit
(1) Keep the Auxiliary Power Unit (APU) in operation.

Subtask 12-31-10-660-082-B ** ON A/C NOT FOR ALL

C. Air conditioning
(1) Make sure that one or more packs are in operation.
(2) Make sure that the aircraft internal temperature is more than 15 DEG.C (59.00 DEG.F) during the turnaround time.
(3) Stop the cargo ventilation system (if installed) when the cargo doors are open:
(a) On the CARGO section of panel 22VU:

Push the FWD ISOL VALVE pushbutton switch (if installed) (the OFF legend comes on).
Push the AFT ISOL VALVE pushbutton switch (if installed) (the OFF legend comes on).

Subtask 12-31-10-660-101-A ** ON A/C NOT FOR ALL

D. Full Authority Digital Engine Control (FADEC)
(1) If the OAT is -46 DEG.C (-50.80 DEG.F) or below:
(a) On panel 50VU:

Release the FADEC GND PWR 1 and 2 pushbutton switches. The ON legends of these pushbutton switches come on.

NOTE: The FADEC is energized during all the turnaround time.

(b) Put a WARNING NOTICE(S) in position to tell persons not to push the FADEC GND PWR/1(2) pushbutton.

Subtask 12-31-10-660-083-B ** ON A/C NOT FOR ALL

E. Refueling
(1) If you must do a refueling procedure, refer to the cold-weather fuel procedure (Ref. AMM TASK 12-31-28-660-001) for:

The anti-icing additives procedure
The fuel-tank water drain procedure.

NOTE: It is not necessary to do the fuel-tank water drain procedure at each refueling. The MPD gives the fuel-tank water drain frequency.

Subtask 12-31-10-660-084-B ** ON A/C NOT FOR ALL

F. Water/Waste
(1) If you must drain the water tank and waste tank, refer to the water/waste cold-weather procedure (Ref. AMM TASK 12-31-38-660-001).

Subtask 12-31-10-660-085-B ** ON A/C NOT FOR ALL

G. Hydraulic System Preparation

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

CAUTION: DO NOT BLEED THE NORMAL AND ALTERNATE BRAKING SYSTEMS WHEN THE TEMPERATURE OF THE BRAKING-EQUIPMENT SAFETY VALVE IS LESS THAN -40 DEG.C (-40 DEG.F). THIS CAN CAUSE THE SAFETY VALVE TO CLOSE.

(1) Make sure that the hydraulic systems are filled with low-density hydraulic fluid (Ref. AMM D/O 12-12-00-00).
(2) On each side of the aircraft, install the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F) in the space between the closed MLG doors and the wing. Blow air at a temperature of 30 DEG.C (86.00 DEG.F) until the aircraft departure.
(3) Make sure that the Blue, Yellow and Green hydraulic systems are pressurized:
(a) On section 40VU of the overhead panel, make sure that the BLUE ELEC PUMP P/BSW is set to AUTO (the OFF and FAULT legends are OFF).
(b) On section 50VU of the maintenance panel, lift the guard and push the BLUE PUMP OVRD P/BSW. Make sure that the ON legend comes on.
(c) On section 40VU of the overhead panel, make sure that the YELLOW ELEC PUMP P/BSW is set to ON (the FAULT legend is OFF).
(d) On section 40VU of the overhead panel, make sure that the PTU P/BSW is set to AUTO (the OFF and FAULT legends are OFF).

Subtask 12-31-10-660-086-B ** ON A/C NOT FOR ALL

H. Passenger/Crew Doors and Cargo Doors
(1) Do not let the passenger/crew doors or cargo doors stay open for more than 10 min.

NOTE: Airbus recommends that the passenger/crew doors or cargo doors stay open only for cargo unloading or loading, passenger deboarding/boarding or catering operations.

(2) If necessary, blow air at 30 DEG.C (86.00 DEG.F) with the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F) to remove the ice from doors or panels that are frozen.
(3) Before the aircraft departure, remove all the snow and slush from:

The door/hatch seal (passenger/crew doors)
The seal contact area on the fuselage (passenger/crew doors)
The entrance area (passenger/crew doors)
The cargo pallets, containers or ULDs (cargo doors).

Subtask 12-31-10-660-087-B ** ON A/C NOT FOR ALL

I. Braking System Preparation

CAUTION: DO NOT BLEED THE NORMAL AND ALTERNATE BRAKING SYSTEMS WHEN THE TEMPERATURE OF THE BRAKING-EQUIPMENT SAFETY VALVE IS LESS THAN -40 DEG.C (-40 DEG.F). THIS CAN CAUSE THE SAFETY VALVE TO CLOSE.

(1) Measure the surface temperature of the spare seal activating-valve of the MLG-shock absorber with an THERMOMETER-INFRARED.
(2) Make sure that the surface temperature is more than -40 DEG.C (-40.00 DEG.F). If necessary, blow air at 30 DEG.C (86.00 DEG.F) below the MLG cover with the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F).
(3) 30 min before aircraft departure, do a test of the normal and alternate braking systems as follows:
(a) Remove the 98D32000005000 COVER-MAIN LANDING GEAR from the MLG wheels.
(b) On panel 400VU, make sure that the A/SKID & N/W STRG control switch is ON (normal braking mode).
(c) Slowly operate the two CAPT or F/O brake pedals ten times.
1 Make sure that there is no ECAM warning.
2 Do a check of the BRAKE and ACCU PRESS indication on the triple indicator.
3 If the braking system changes to alternate during the test:

Open the right MLG door (Ref. AMM TASK 32-12-00-010-001).
Blow air at 30 DEG.C (86.00 DEG.F) on brake selector valve 23GG with the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F) for 10 minutes.
Close the right MLG door (Ref. AMM TASK 32-12-00-410-001).
On panel 400VU, set the A/SKID & N/W STRG control switch to OFF.
On panel 400VU, set the A/SKID & N/W STRG control switch to ON.
Operate the brake pedals ten times.
If the braking system changes to alternate, do the trouble shooting procedure TSM 32-42-00-810-849.

(d) Remove the hydraulic fluid that can be on the brakes.
(e) Measure the leakage rate of the brake unit (Ref. AMM TASK 29-00-00-790-001).
(f) Remove the hydraulic fluid from the brakes.
(g) If the measured leakage rate is more than the maximum permitted leakage rate:
1 Slowly operate the two CAPT or F/O brake pedals ten times.
2 Measure the leakage rate of the brake unit (Ref. AMM TASK 29-00-00-790-001).
(h) After the second leakage rate test, if the measured leakage rate is more than the permitted maximum leakage rate, replace the brake unit (Ref. AMM TASK 32-42-27-000-001) and (Ref. AMM TASK 32-42-27-400-001).

NOTE: Airbus recommends that you only replace the brake unit when the Outside Air Temperature (OAT) is more than -40 DEG.C (-40.00 DEG.F).

(i) On panel 400VU, set the A/SKID & N/W STRG control switch to OFF (alternate braking mode).
(j) Slowly operate the two CAPT or F/O brake pedals ten times.
1 Make sure that there is no ECAM warning.
2 Do a check of the BRAKE and ACCU PRESS indication on the triple indicator.
(k) Measure the leakage rate of the brake unit (Ref. AMM TASK 29-00-00-790-001).
(l) Remove the hydraulic fluid from the brakes.
(m) If the measured leakage rate is more than the maximum permitted leakage rate:
1 Slowly operate the two CAPT or F/O brake pedals ten times.
2 Measure the leakage rate of the brake unit (Ref. AMM TASK 29-00-00-790-001).
(n) After the second leakage rate test, if the measured leakage rate is more than the permitted maximum leakage rate, replace the brake unit (Ref. AMM TASK 32-42-27-000-001) and (Ref. AMM TASK 32-42-27-400-001).

NOTE: Airbus recommends that you only replace the brake unit when the Outside Air Temperature (OAT) is more than -40 DEG.C (-40.00 DEG.F).

(o) On panel 400VU, set the A/SKID & N/W STRG control switch to ON.

Subtask 12-31-10-660-088-B ** ON A/C NOT FOR ALL

J. Landing Gear Preparation and Landing-Gear Bay Preparation
(1) Carefully pull the cover on the NLG.
(2) Make sure that the temperature is more than -40 DEG.C (-40.00 DEG.F). If necessary, blow air at 30 DEG.C (86.00 DEG.F) below the NLG cover with the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F).
(3) 45 minutes before aircraft departure, measure the temperature in the NLG bay. If the temperature is less than -40 DEG.C (-40.00 DEG.F):
(a) Open the NLG doors (Ref. AMM TASK 32-22-00-010-001).
(b) Blow air at 30 DEG.C (86.00 DEG.F) in the NLG bay at the NLG actuating cylinder and NLG door-actuating cylinder for 45 minutes with the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F).
(c) Close the NLG doors (Ref. AMM TASK 32-22-00-410-001).
(4) During the turnaround time, blow air at 30 DEG.C (86.00 DEG.F) at the MLG actuating cylinders and lockstay actuating cylinders with the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F).
(5) Remove ice and/or snow from the landing gears (Ref. AMM TASK 12-31-32-660-001).
(6) Do a manual check of the tire pressure. If necessary, inflate the tire (Ref. AMM TASK 12-31-32-660-001).

Subtask 12-31-10-660-089-B ** ON A/C NOT FOR ALL

K. Flight Controls Preparation

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Flight-controls preparation requirements:
(a) If the turnaround time is less than 90 minutes (1.5 hours), it is not necessary to do the flight controls preparation.
(b) If the turnaround time is equal to or more than 90 minutes (1.5 hours), you must do the flight controls preparation.
(2) Flight controls preparation:
(a) Make sure that there is no ice, snow, slush or frost on the critical flight surfaces (wings, vertical and horizontal stabilizers and rudder).
(b) On overhead panel 20VU, on the ADIRS CDU:

Set the three OFF/NAV/ATT selector switches to NAV.

Push the FLT CTL/ELAC 1, FLT CTL/SEC 1 and FAC 1 pushbutton switches (the OFF and FAULT legends of these pushbutton switches go off).

(d) On overhead panel 24VU:

Push the FLT CTL/ELAC 2, FLT CTL/SEC 2, FLT CTL/SEC 3 and FAC 2 pushbutton switches (the OFF and FAULT legends of these pushbutton switches go off).

(e) While the computers start, do not operate the flight controls: side sticks, rudder pedals and pitch-trim control wheel.

NOTE: The time necessary for the computer start is 2 minutes.

NOTE: If the computer disengages during the flight controls preparation, reset the applicable computer (ELAC, SEC or FAC) and do the preparation again with slower control surface order rates.

(3) Slowly move the flight controls from stop to stop for a minimum of 5 minutes, in this sequence:
(a) Move the CAPT (F/O) side stick from stop to stop in pitch. On the lower ECAM display unit, on the FLT CTL page, make sure that the elevators move.
(b) Move the CAPT (F/O) side stick from stop to stop in roll. On the lower ECAM display unit, on the FLT CTL page, make sure that the ailerons move and that the spoilers (2, 3, 4, and 5) extend.
(4) On overhead panel 24VU:

Release the FLT CTL/ELAC 2 pushbutton switch (the OFF legend of this pushbutton switch comes on).

(5) Slowly move the CAPT (F/O) side stick from stop to stop in pitch. On the lower ECAM display unit, on the FLT CLT page, make sure that the elevators move.
(6) On overhead panel 24VU:

Push the FLT CTL/ELAC 2 pushbutton switch (the OFF and FAULT legends of this pushbutton switch go off).

(7) On overhead panel 23VU:

Release the FLT CTL/ELAC 1 pushbutton switch (the OFF legends of this pushbutton switch come on).

(8) Slowly move the CAPT (F/O) side stick from stop to stop in roll. On the lower ECAM display unit, on the FLT CLT page, make sure that the ailerons move and that the spoilers (2, 3, 4 and 5) extend.

CAUTION: MAKE SURE THAT YOU MOVE THE SPEEDBRAKE CONTROL LEVER ONE NOTCH AT A TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, YOU CAN CAUSE DAMAGE TO THE SPEEDBRAKE.

(9) On the center pedestal, move the speedbrake control lever from the 0 position to the 1/2 position. Move the speedbrake control lever from the 1/2 position to the FULL position and make sure that the spoilers (1, 2, 3, 4 and 5) extend, then back to the 0 position.
(10) On the nosewheel steering handwheel, push the pedal disconnection pushbutton and push the rudder pedals from the right stop to the left stop. On the lower ECAM display unit, on the FLT CLT page, make sure that the rudder moves.
(11) Manually set the pitch-trim control wheel from full nose up to full nose down, then set the pitch-trim control wheel to zero.
(12) Do the operational test of the Green and Yellow yaw dampers (Ref. AMM TASK 22-63-00-710-001).
(13) On overhead panel 23VU:

Push the FLT CTL/ELAC 1 pushbutton switch (the OFF and FAULT legends of this pushbutton switch go off).

(14) Manually set the pitch-trim control wheel to 10° aircraft nose up.
(15) On overhead panel 23VU, release and push the FLT CLT/ELAC 1 pushbutton switch to do a reset of the pitch trim.
(16) Make sure that the pitch-trim control wheel automatically moves to 0°.
(17) On the nosewheel steering handwheel, push the pedal disconnection pushbutton and move the rudder trim from 5 degrees to -5 degrees. On the center pedestal, on panel 408VU, push the RUD TRIM/RESET pushbutton switch to set the rudder to neutral.
(18) Do the operational test of the travel limiting function (Ref. AMM TASK 22-61-00-710-001).
(19) On the center pedestal, move the slat/flap control lever from the 0 position to the first notch position. Make sure that the flaps stop at the first position selected (1+F).
(20) Operate the side stick again in pitch and roll at full speed:
(a) Move the CAPT (F/O) side stick from stop to stop in pitch. On the lower ECAM display unit, on the FLT CTL page, make sure that the elevators move.
(b) Move the CAPT (F/O) side stick from stop to stop in roll. On the lower ECAM display unit, on the FLT CTL page, make sure that the ailerons move and that the spoilers (2, 3, 4 and 5) extend.
(21) On overhead panel 24VU:

Release the FLT CTL/ELAC 2 pushbutton switch (the OFF legend of this pushbutton switch comes on).

(22) Move the CAPT (F/O) side stick from stop to stop in pitch. On the lower ECAM display unit, on the FLT CLT page, make sure that the elevators move.
(23) On overhead panel 24VU:

Push the FLT CTL/ELAC 2 pushbutton switch (the OFF and FAULT legends of this pushbutton switch go off).

(24) On overhead panel 23VU:

Release the FLT CTL/ELAC 1 pushbutton switch (the OFF legends of this pushbutton switch come on).

(25) Move the CAPT (F/O) side stick from stop to stop in roll. On the lower ECAM display unit, on the FLT CLT page, make sure that the ailerons move and that the spoilers (2, 3, 4 and 5) extend.

CAUTION: MAKE SURE THAT YOU MOVE THE SPEEDBRAKE CONTROL LEVER ONE NOTCH AT A TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, YOU CAN CAUSE DAMAGE TO THE SPEEDBRAKE.

(26) On the center pedestal, move the speedbrake control lever from the 0 position to the 1/2 position. Move the speedbrake control lever from the 1/2 position to the FULL position and make sure that spoilers (1, 2, 3, 4 and 5) extend, then back to the 0 position.
(27) On the nosewheel steering handwheel, push the pedal disconnection pushbutton and push the rudder pedals from right stop to left stop. On the lower ECAM display unit, on the FLT CLT page, make sure that the rudder moves.
(28) Manually set the pitch-trim control wheel from full nose up to full nose down, then set the pitch-trim control wheel to zero.
(29) Do the operational test of the Green and Yellow yaw dampers (Ref. AMM TASK 22-63-00-710-001).
(30) On overhead panel 23VU:

Push the FLT CTL/ELAC 1 pushbutton switch (the OFF and FAULT legends of this pushbutton switch go off).

(31) Manually set the pitch-trim control wheel to 10° aircraft nose up.
(32) On overhead panel 23VU, release and push the FLT CTL/ELAC 1 pushbutton switch to do a reset of the pitch trim.
(33) Make sure that the pitch-trim control wheel automatically moves to 0°.
(34) On the nosewheel steering handwheel, push the pedal disconnection pushbutton and move the rudder trim from 5 degrees to -5 degrees. On the center pedestal, on panel 408VU, push the RUD TRIM/RESET pushbutton switch to set the rudder to neutral.
(35) Do the operational test of the travel limiting function (Ref. AMM TASK 22-61-00-710-001).
(36) Make sure that the FLT CLT/ELAC 1, FLT CTL/ELAC 2, FLT CTL/SEC 1, FLT CTL/SEC 2, FLT CTL/SEC 3, FAC 1 and FAC 2 pushbutton switches are pushed (the OFF and FAULT legends of these pushbutton switches are off).

Subtask 12-31-10-660-090-C ** ON A/C NOT FOR ALL

L. Power Plant
(1) Remove the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F) from the aircraft.
(2) Start the engine in cold weather conditions (Ref. AMM TASK 71-00-00-860-003).

Subtask 12-31-10-660-090-D ** ON A/C NOT FOR ALL

L. Power Plant
(1) Remove the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F) from the aircraft.
(2) If the FADEC was kept ON during the turnaround:
(a) On panel 50VU:
1 Remove the WARNING NOTICE(S).
2 Push the FADEC GND PWR 1 and 2 pushbutton switches. The ON legends of these pushbutton switches come off.
(3) Start the engine in cold weather condition (Ref. AMM TASK 71-00-00-860-826).

5. Close-up
Subtask 12-31-10-942-053-B ** ON A/C NOT FOR ALL

A. Removal of equipment
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.03.31 22:57:22 UTC