Return to Operation of an Aircraft Parked without Air Supply and with Electrical Supply

TASK 12-31-10-554-001-A
Return to Operation of an Aircraft Parked without Air Supply and with Electrical Supply

CAUTION: DO NOT MOVE PARTS OF THE CABIN FURNISHINGS UNTIL THE CABIN IS WARM.

CAUTION: DO NOT OPERATE THE WINDOW HEAT UNTIL THE PROCEDURE TELLS YOU.

1. Reason for the Job
Self explanatory
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)
98D32000005000	2	COVER-MAIN LANDING GEAR

B. Referenced Information

REFERENCE	DESIGNATION
TASK 12-31-23-554-801-A	Cold Weather Maintenance - Aircraft Return to Service at very low outside temperatures - Communications
TASK 12-31-32-660-001-A	Cold Weather Maintenance - Landing Gear
TASK 12-31-70-660-002-A	Engine Start Procedure after Engine Cold Soak (with OAT below -40 DEG.C (-40 DEG.F))
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 27-96-00-740-001-A	BITE Test of the EFCS (Ground Scanning)
TASK 29-00-00-790-001-A	Check of the External Leaks of the Hydraulic Components
TASK 29-10-00-863-003-A-01	Pressurize the Blue Hydraulic System with the Blue Electric Pump
TASK 29-23-00-863-001-A	Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
TASK 29-24-00-863-001-A	Pressurize the Yellow Hydraulic System with the Electric Pump
TASK 31-60-00-860-001-A	EIS Start Procedure
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 32-44-11-200-001-A	Functional Check of Parking/Emergency Brake Accumulator by Reading the Charge Pressure on the Accumulator Gauge
TASK 35-12-41-400-002-A	Installation of the Full-Face/Quick-donning Oxygen-Mask
TASK 49-00-00-860-008-A	APU Start by External Power
TASK 49-00-00-860-008-A-01	APU Start by Batteries
TASK 49-61-34-400-002-A	Installation of the Electronic Control Box (ECB) (APS 3200)
TASK 49-61-34-400-003-A	Installation of the Electronic Control Box (ECB) (131-9(A))
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)

3. Job Set-up
Subtask 12-31-10-941-050-A ** ON A/C NOT FOR ALL

A. Not Applicable

4. Procedure
Subtask 12-31-10-860-057-B ** ON A/C NOT FOR ALL

A. Aircraft Configuration
(1) Reset of computers
(a) On the ELEC panel 35VU:

Release the BAT 1 and 2 pushbutton switches (the OFF legends comes on) and the EXT PWR pushbutton switch (the AVAIL legend comes on)
Push the BAT 1 and 2 pushbutton switches (the OFF legends go off) and the EXT PWR pushbutton switch (the ON legend comes on).

(2) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
(3) On the ADIRS MSU:

Set the OFF/NAV/ATT selector switches related to IR 1, 2, 3 to NAV.

(4) On the panels 301VU and 500VU:

Set the PFD and the ND potentiometers to ON.

(5) On the ECAM control panel:

Set the UPPER DISPLAY and LOWER DISPLAY potentiometers to ON.

(6) Start all the MCDUs.

Subtask 12-31-10-660-061-A ** ON A/C NOT FOR ALL

B. APU Start
(1) On the AIR COND panel 30VU:

Release the APU BLEED pushbutton switch (the OFF legend comes on).

(2) Open the APU access door (315AL) and blow warm air with a HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F) on the APU until the APU oil temperature is above -40 DEG.C (-40.00 DEG.F). You can ignore this step for the APU model that follows only (you can start this APU without a warm-up):

131-9A with oil type I.

(3) Install the APU Electronic Control Box (ECB) (Ref. AMM TASK 49-61-34-400-002) (Ref. AMM TASK 49-61-34-400-003).
(4) Remove the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F) if applicable and close the APU access door (315AL).
(5) On the ELEC panel 35VU:

Push the APU GEN pushbutton switch (the OFF legend comes on).

(6) Start the APU (Ref. AMM TASK 49-00-00-860-008) and operate it for a minimum of 5 minutes before you start the electrical supply and the air supply.
(7) On the ELEC panel 35VU:

Release the APU GEN pushbutton switch (the OFF legend goes off).

(8) On the AIR COND panel 30VU:

Set the X BLEED selector switch to AUTO.
Push the APU BLEED pushbutton switch (the OFF legend goes off).

Subtask 12-31-10-660-062-B ** ON A/C NOT FOR ALL

C. Air Conditioning Start
(1) On panel 30VU:

Push the PACK 1 pushbutton switch (the OFF legend goes off).
Ignore the pack discharge temperature shown as an "XX" value on system display.

NOTE: In very cold weather conditions (OAT below -30 DEG.C (-22.00 DEG.F)), the pack discharge temperature can be temporarily shown as an amber "XX" for a short time after pack start.

(a) After three minutes, push the PACK 2 pushbutton switch (the OFF legend goes off).
(2) Five minutes after pack 2 start, on AIR COND panel 30VU, push the HOT AIR pushbutton switch (the OFF legend goes off).
(3) Ignore the HOT AIR FAULT ECAM warning and, on circuit breaker panel 122VU, open these circuit breakers:

AIR COND/ZONE TEMP (47HK)
AIR COND/ZONE TEMP (57HK).

(4) Close these circuit breakers:

AIR COND/ZONE TEMP (47HK)
AIR COND/ZONE TEMP (57HK).

(5) The HOT AIR FAULT ECAM warning goes out of view.
(6) On circuit breaker panel 122VU, close the AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY circuit breaker (6HU).
(7) On the VENTILATION section of panel 22VU:

Push the CABIN FANS pushbutton switch (the OFF legend goes off).

(8) When the aircraft internal temperature is at a minimum of 18 DEG.C (64.40 DEG.F), do the step below.

Subtask 12-31-10-420-050-A ** ON A/C NOT FOR ALL

D. Installation of Equipment
(1) Install these items of equipment:

The floppy disks or the Compact Disks (CD) or the Universal Serial Bus (USB) keys in the cockpit
Portable fire-extinguisher bottles
Megaphone
Emergency Locator Transmitter (ELT)
Flashlights
Full-Face Quick-Donning Mask (Ref. AMM TASK 35-12-41-400-002)
First aid kits
Medical kits
Defibrillator
All the items of equipment removed in the cabin
Cabin Intercommunication Data System (CIDS) components (Ref. AMM TASK 12-31-23-554-801).

Subtask 12-31-10-865-054-A ** ON A/C NOT FOR ALL

E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DIR ESS/2	157RH	G02
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DEU B/ESS	153RH	G03
49VU	COM/CIDS/DIR ESS/1	150RH	G01
** ON A/C NOT FOR ALL
49VU	AIR COND/CIDS/SDF/DIR2 ESS	18WH	C06
49VU	AIR COND/CIDS/SDF/DIR1 ESS	15WH	C05
** ON A/C NOT FOR ALL
49VU	AIR COND/CARGO FIRE/EXTIG/BTL1	1WX	C03
** ON A/C NOT FOR ALL
49VU	AIR COND/CARGO FIRE/EXTIG/BTL2	8WX	C04
** ON A/C NOT FOR ALL
49VU	COM DIR ESS/2	157RH	G02
** ON A/C NOT FOR ALL
49VU	AIR COND/CARGO/FIRE/EXTIG/BTL1	1WX	C03
** ON A/C NOT FOR ALL
49VU	COM NAV/CIDS/DIR2 ESS	157RH	G02
49VU	COM NAV/CIDS/DIR1 ESS	150RH	G01
** ON A/C NOT FOR ALL
121VU	COM CIDS FWD ATTND PNL	170RH	Q14
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R AFT	168RH	M12
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M11
121VU	COM NAV/CIDS/DEU A NORM/R FWD	164RH	M10
121VU	COM NAV/CIDS/DEU A NORM/L FWD	163RH	M09
121VU	COM NAV/CIDS/DEU B/NORM	162RH	M08
121VU	COM NAV/CIDS/DIR NORM/2	156RH	M06
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M05
** ON A/C NOT FOR ALL
121VU	COM NAV/RAD ALTM/2	1SA2	K12
121VU	COM NAV/RAD ALTM/1	1SA1	K11
** ON A/C NOT FOR ALL
121VU	COM/FAP1/NORM	170RH	Q14
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R FWD	164RH	M11
121VU	COM NAV/CIDS/DEU A NORM/L FWD	163RH	M10
121VU	COM NAV/CIDS/DIR NORM/2	156RH	M07
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M06
121VU	COM NAV/CIDS/FWD ATTND/PNL	170RH	Q14
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DIR2 NORM	156RH	M06
121VU	COM NAV/CIDS/DIR1 NORM	151RH	M05
** ON A/C NOT FOR ALL
122VU	AIR COND/CARGO/FIRE/EXTIG	1WX	T19
** ON A/C NOT FOR ALL
122VU	AIR COND/CIDS/SDF/DIR NORM/2	14WH	T18
122VU	AIR COND/CIDS/SDF/DIR NORM/1	17WH	T17

Subtask 12-31-10-860-058-A ** ON A/C NOT FOR ALL

F. System Configuration
(1) On the ELEC panel 35VU:

Push the GALLEY pushbutton switch (the OFF legend goes off).

(2) On the CARGO HEAT section of panel 22VU:

Push the FWD ISOL VALVE pushbutton switch (if installed) (the OFF legend goes off).
Push the AFT ISOL VALVE pushbutton switch (if installed) (the OFF legend goes off).

(3) On the PROBE/WINDOW HEAT section of panel 25VU:

Push the PROBE/WINDOW HEAT pushbutton switch (the OFF legend goes off).

(4) On the ELEC panel 35VU:

Push the COMMERCIAL pushbutton switch (the OFF legend goes off).

(5) On the FAP 120RH, push the MAIN ON membrane switch.

Subtask 12-31-10-660-067-A ** ON A/C NOT FOR ALL

G. Brake and Hydraulic System Preparation

CAUTION: MAKE SURE THAT HYDRAULIC POWER IS IN OPERATION A MINIMUM OF 10 MINUTES BEFORE YOU OPERATE COMPONENTS THAT USE HYDRAULIC POWER.

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) On each side of the aircraft, install the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F) in the space between the closed Main Landing Gear (MLG) doors and the wing. Blow air at 30 DEG.C (86.00 DEG.F) for 45 minutes.
(2) After 45 minutes, open the right MLG door (Ref. AMM TASK 32-12-00-010-001).
(3) Blow air at 30 DEG.C (86.00 DEG.F) on the brake accumulator 2582GM for 10 minutes with the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F).
(4) Read the gauge on the accumulator to do a check of the nitrogen charge pressure (Ref. AMM TASK 32-44-11-200-001).
(5) Close the right MLG door (Ref. AMM TASK 32-12-00-410-001) and blow air at 30 DEG.C (86.00 DEG.F) in the space between the closed MLG doors and the wing.

NOTE: Blow air at 30 DEG.C (86.00 DEG.F) in the MLG compartment until you start the engine.

(6) On the overhead panel 23VU:

Release the FLT CTL/ELAC 1, FLT CTL/SEC 1 and FAC 1 pushbutton switches (the OFF and FAULT legends of these pushbutton switches come on).

(7) On the overhead panel 24VU:

Release 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 come on).

(8) Pressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-863-003).
(9) Pressurize the Yellow hydraulic system (Ref. AMM TASK 29-24-00-863-001).

NOTE: If during pressurization of the Blue and the Yellow hydraulic systems, circuit breakers 2701CJ and 3802GX open, start the pumps again after 5 minutes. If the pumps do not start, blow warm air in the Blue and Yellow electric pump compartments.

(10) Pressurize the Green hydraulic system (Ref. AMM TASK 29-23-00-863-001).
(11) Remove the 98D32000005000 COVER-MAIN LANDING GEAR from the MLG wheels.
(12) On the panel 400VU, make sure that the A/SKID & N/W STRG control switch is in the ON position (normal braking mode).
(13) Slowly operate the brake pedals ten times.
(a) If the braking system changes to alternate during the test:
1 Open the right MLG door (Ref. AMM TASK 32-12-00-010-001).
2 With the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F) blow air at 30 DEG.C (86.00 DEG.F) on the brake selector valve 23GG for 10 minutes.
3 Close the right MLG door (Ref. AMM TASK 32-12-00-410-001).
4 On the panel 400VU, set the A/SKID & N/W STRG control switch to OFF.
5 On the panel 400VU, set the A/SKID & N/W STRG control switch to ON.
6 Operate the brake pedals ten times.
7 If the braking system changes to alternate, do the trouble shooting procedure TSM 32-42-00-810-849.
(14) Remove hydraulic fluid that can be on the brakes.
(15) Measure the leakage rate of the brake unit (Ref. AMM TASK 29-00-00-790-001). Remove hydraulic fluid from the brakes.
(16) If the measured leakage rate is more than the maximum leakage rate permitted:
(a) Slowly operate the brake pedals ten times.
(b) Measure the leakage rate of the brake unit (Ref. AMM TASK 29-00-00-790-001).
(17) After the second leak test, if the measured leakage rate is more than the maximum leakage rate permitted, replace the brake unit (Ref. AMM TASK 32-42-27-000-001).

NOTE: Airbus recommends to replace the brake unit at a temperature above -40 DEG.C (-40.00 DEG.F).

(18) On the panel 400VU, set the A/SKID & N/W STRG control switch to OFF (alternate breaking mode).
(19) Slowly operate the brake pedals ten times.
(20) Measure the leakage rate of the brake unit (Ref. AMM TASK 29-00-00-790-001). Remove hydraulic fluid from the brakes.
(21) If the measured leakage rate is more than the maximum leakage rate permitted:
(a) Slowly operate the brake pedals ten times.
(b) Measure the leakage of the brake unit (Ref. AMM TASK 29-00-00-790-001).
(22) After the second leak test, if the measured leakage rate is more than the maximum leakage rate permitted, replace the brake unit (Ref. AMM TASK 32-42-27-000-001).

NOTE: Airbus recommends to replace the brake unit at a temperature above -40 DEG.C (-40.00 DEG.F).

(23) On the panel 400VU, set the A/SKID & N/W STRG control switch to ON.
(24) At 30 minute intervals until the aircraft departure, slowly operate the brake pedals ten times in normal and alternate braking mode.
(25) Before aircraft departure, on the panel 400VU, make sure that the A/SKID & N/W STRG control switch is in ON position.

Subtask 12-31-10-660-079-A ** ON A/C NOT FOR ALL

H. Landing Gear and Landing Gear Bay Preparation
(1) Open the nose landing gear doors (Ref. AMM TASK 32-22-00-010-001).
(2) 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).
(3) Close the nose landing gear doors (Ref. AMM TASK 32-22-00-410-001).
(4) Blow air at 30 DEG.C (86.00 DEG.F) at the MLG actuating cylinder for 45 minutes 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 check of the tire pressure. If necessary inflate the tire (Ref. AMM TASK 12-31-32-660-001).

Subtask 12-31-10-660-063-B ** ON A/C NOT FOR ALL

CAUTION: MAKE SURE THAT HYDRAULIC POWER IS IN OPERATION A MINIMUM OF 10 MINUTES BEFORE YOU OPERATE COMPONENTS THAT USE HYDRAULIC POWER.

I. Flight Controls Preparation

NOTE: The time between the end of the flight controls preparation and the flight departure must not be more than 1.5 hours with the electric pumps and the PTU in operation. If the time is more than 1.5 hours, you must do the flight controls preparation again.

(1) On the overhead panel 23VU:

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).

(2) On the overhead panel 24VU:

Push the FLT CTL/ELAC2, FLT CTL/SEC 2, FLT CTL/SEC 3 and FAC 2 pushbutton switches (the OFF and FAULT legends of these pushbutton switches go off).

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

(3) Slowly move the flight controls from stop to stop for at least 5 minutes in each axis, 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, 5) extend.
(c) 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 CTL page, make sure that the rudder moves.
(4) On the overhead panel 24VU:

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

(5) Move the CAPT (F/O) side stick from stop to stop in pitch for 2 minutes. On the lower ECAM display unit, on the FLT CTL page, make sure that the elevators move.
(6) On the overhead panel 24VU:

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

(7) On the overhead panel 23VU:

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

(8) Move the CAPT (F/O) side stick from stop to stop in roll for 2 minutes. On the lower ECAM display unit, on the FLT CTL page , make sure that the ailerons move and that the spoilers (2, 3, 4, 5) extend.
(9) On the overhead panel 23VU:

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

(10) Manually set the pitch-trim control wheel from full nose up to full nose down, then set the pitch-trim control wheel to zero.
(11) On the overhead panel 23VU, release and push the FLT CTL/ELAC 1 pushbutton switch to do a reset of the pitch trim.
(12) 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 the panel 408VU, push the RUD TRIM/RESET pushbutton switch to set the rudder to neutral.
(13) 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, then back to the 0 position.

CAUTION: MAKE SURE THAT YOU MOVE THE SLAT/FLAP CONTROL LEVER ONE NOTCH AT A TIME.

(14) On the center pedestal, move the slat and 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).
(15) Operate again the CAPT (F/O) side stick in pitch and roll at full speed:
(a) Move the CAPT (F/O) side stick from stop to stop in pitch for 2 minutes. 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 for 2 minutes. On the lower ECAM display unit, on the FLT CTL page, make sure that the ailerons move and that the spoilers (2, 3, 4, 5) extend.

CAUTION: MAKE SURE THAT YOU MOVE THE SLAT/FLAP CONTROL LEVER ONE NOTCH AT A TIME.

(16) On the center pedestal, set the slat and flap control lever to positions 2, 3 and FULL. Stop at each notch until the flaps stop at each position selected.
(17) On the center pedestal, set the slat and flap control lever to positions FULL, 3, 2, 1+F and 0. Stop at each notch until the flaps stop at each position selected.
(18) Do the operational test of the Green and Yellow yaw dampers (Ref. AMM TASK 22-63-00-710-001).
(19) Do the operational test of the travel limitation unit (Ref. AMM TASK 22-61-00-710-001).
(20) 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. Do a BITE test of the EFCS (Ground Scanning) (Ref. AMM TASK 27-96-00-740-001) and make sure that there is no warning.
(21) Do a BITE test of the Electrical Flight Control System (EFCS) (Ground Scanning) (Ref. AMM TASK 27-96-00-740-001) and make sure that there is no warning.

Subtask 12-31-10-660-066-B ** ON A/C NOT FOR ALL

J. Power Plant
(1) Remove the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F) from the aircraft.
(2) Do the engine start procedure after the engine cold soak (Ref. AMM TASK 12-31-70-660-002).

Subtask 12-31-10-660-066-C ** ON A/C NOT FOR ALL

J. Power Plant
(1) Remove the HOT AIR BLOWER MAX OPERATING 55DEG C (131 DEG F) from the aircraft.
(2) Do the engine start procedure after the engine cold soak (Ref. AMM TASK 71-00-00-860-826).

[Rev.10 from 2021] 2026.04.01 04:41:44 UTC