Procedure to Park an Aircraft without Air Supply and with Electrical Supply
TASK 12-31-10-555-002-A
Procedure to Park an Aircraft without Air Supply and with Electrical Supply
1. Reason for the Job
To park the aircraft with electrical power supply to the equipment in the avionics compartment and the cockpit. This keeps the temperature of the equipment above -15 DEG.C (5 DEG.F) because of internal power consumption.
The parking duration must be limited to 12 hours.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 12-31-10-860-051-A ** ON A/C NOT FOR ALL
Subtask 12-31-10-620-052-B ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 04:41:43 UTC
Procedure to Park an Aircraft without Air Supply and with Electrical Supply
1. Reason for the Job
To park the aircraft with electrical power supply to the equipment in the avionics compartment and the cockpit. This keeps the temperature of the equipment above -15 DEG.C (5 DEG.F) because of internal power consumption.
The parking duration must be limited to 12 hours.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| 98D10000013000 | 2 | COVER-INLET COWL ENGINE |
| 98D20003001000 | 1 | KIT,COLD WEATHER-MLG WHEELS,ENGINES,PROBES |
| 98D32000005000 | 2 | COVER-MAIN LANDING GEAR |
| HIX6002 | 2 | HALF PLUG, RIGHT-THRUST REVERSER |
| HIX6003 | 2 | HALF PLUG, LEFT-THRUST REVERSER |
| RSE1132 | 2 | COVER - COMMON NOZZLE |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-31-23-555-801-A | Cold Weather Maintenance - Parking at very low outside temperatures - Communications |
| TASK 12-31-28-660-001-A | Cold Weather Maintenance - Fuel |
| TASK 12-31-38-660-001-A | Cold Weather Maintenance - Water/Waste |
| TASK 12-31-52-660-001-A | Cold Weather Maintenance - Doors |
| 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 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| TASK 35-12-41-000-002-A | Removal of the Full-Face/Quick-Donning Oxygen-Mask |
| TASK 49-61-34-000-002-A | Removal of the Electronic Control Box (ECB) (APS 3200) |
| TASK 49-61-34-000-003-A | Removal of the Electronic Control Box (ECB) (131-9(A)) |
| TASK 71-00-00-660-803-A | Prepare the Engine for Cold Weather after Shutdown |
Subtask 12-31-10-860-051-A ** 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 are aligned with the aircraft axis and the aircraft points into the wind.
(2) Put fiber material between the tires and the ground surface.
(3) Make sure that the wheel chocks are in position.
(4) On the panel 110VU, make sure that the PARKING BRK control-switch is in the OFF position.
(5) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
4. Procedure(1) Park the aircraft on a flat surface. Make sure that the wheels of the nose landing gear are aligned with the aircraft axis and the aircraft points into the wind.
(2) Put fiber material between the tires and the ground surface.
(3) Make sure that the wheel chocks are in position.
(4) On the panel 110VU, make sure that the PARKING BRK control-switch is in the OFF position.
(5) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
Subtask 12-31-10-620-052-B ** ON A/C NOT FOR ALL
A. Aircraft Protection
(1) Make sure that the seals of the doors are lubricated with grease (Ref. AMM TASK 12-31-52-660-001).
(3) Install 98D32000005000 COVER-MAIN LANDING GEAR on the Main Landing Gear (MLG) wheels.
Subtask 12-31-10-620-052-D ** ON A/C NOT FOR ALL (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) Install 98D10000013000 COVER-INLET COWL ENGINE, RSE1132 COVER - COMMON NOZZLE, HIX6002 HALF PLUG, RIGHT-THRUST REVERSER and HIX6003 HALF PLUG, LEFT-THRUST REVERSER on the engines. (3) Install 98D32000005000 COVER-MAIN LANDING GEAR on the Main Landing Gear (MLG) wheels.
NOTE: This tool is included in the 98D20003001000 KIT,COLD WEATHER-MLG WHEELS,ENGINES,PROBES.
A. Aircraft Protection
(1) Make sure that the seals of the doors are lubricated with grease (Ref. AMM TASK 12-31-52-660-001).
(2) Prepare the engine for cold weather after shutdown (Ref. AMM TASK 71-00-00-660-803).
(3) Install the 98D32000005000 COVER-MAIN LANDING GEAR on the Main Landing Gear (MLG) wheels.
Subtask 12-31-10-660-058-A ** ON A/C NOT FOR ALL (1) Make sure that the seals of the doors are lubricated with grease (Ref. AMM TASK 12-31-52-660-001).
(2) Prepare the engine for cold weather after shutdown (Ref. AMM TASK 71-00-00-660-803).
(3) Install the 98D32000005000 COVER-MAIN LANDING GEAR on the Main Landing Gear (MLG) wheels.
NOTE: This tool is included in the 98D20003001000 KIT,COLD WEATHER-MLG WHEELS,ENGINES,PROBES.
B. 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:
Subtask 12-31-10-660-059-A ** ON A/C NOT FOR ALL (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.
C. Water/Waste
(1) Drain the water tank and waste tank before you open the cargo doors (Ref. AMM TASK 12-31-38-660-001).
Subtask 12-31-10-020-052-A ** ON A/C NOT FOR ALL (1) Drain the water tank and waste tank before you open the cargo doors (Ref. AMM TASK 12-31-38-660-001).
D. Removal of Equipment
(1) Remove these items of equipment and keep them at a temperature between 15 DEG.C (59.00 DEG.F) and 35 DEG.C (95.00 DEG.F):
Subtask 12-31-10-860-056-A ** ON A/C NOT FOR ALL (1) Remove these items of equipment and keep them at a temperature between 15 DEG.C (59.00 DEG.F) and 35 DEG.C (95.00 DEG.F):
- The floppy disks or the Compact Disks (CD) or the Universal Serial Bus (USB) keys from the cockpit
- Portable fire-extinguisher bottles
- Megaphone
- Emergency Locator Transmitter (ELT)
- Flashlights
- Full-Face Quick-Donning Mask (Ref. AMM TASK 35-12-41-000-002)
- First aid kits
- Medical kits
- Defibrillator
- All the battery-operated equipment installed by the operator in the cabin
- The APU Electronic Control Box (ECB) (Ref. AMM TASK 49-61-34-000-002) (Ref. AMM TASK 49-61-34-000-003)
- Cabin Intercommunication Data System (CIDS) components (Ref. AMM TASK 12-31-23-555-801).
E. System Configuration
(1) On the ELEC panel 35VU:
(13) On the FAP 120RH, push the MAIN OFF membrane switch.
Subtask 12-31-10-865-050-A ** ON A/C NOT FOR ALL (1) On the ELEC panel 35VU:
- Make sure that the GALLEY pushbutton switch is released (the OFF legend is on).
- Make sure that the COMMERCIAL pushbutton switch is released (if installed) (the OFF legend is on).
- Make sure that the CABIN FANS pushbutton switch is released (the OFF legend is on).
- Make sure that the YELLOW ELEC PUMP pushbutton switch is released (the ON legend is off).
- Make sure that the PTU pushbutton switch is pushed (the OFF legend is off).
- Make sure that the BLUE PUMP OVRD pushbutton switch is released (the ON legend is off).
- Make sure that the PROBE/WINDOW HEAT pushbutton switch is released (the ON legend is off).
- Set the X BLEED selector switch to SHUT.
- Make sure that the HOT AIR pushbutton switch is released (the OFF legend is on).
- Set the EMER EXIT LT switch to ARM.
- Release the AFT ISOL VALVE pushbutton switch (if installed) (the OFF legend comes on).
- Release the FWD ISOL VALVE pushbutton switch (if installed) (the OFF legend is comes on).
- Set the OFF/NAV/ATT selector switches related to IR 1,2,3 to OFF
- Set the SYS DISPLAY selector switch to OFF.
- Set the PFD and ND potentiometers to OFF.
- Set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(13) On the FAP 120RH, push the MAIN OFF membrane switch.
F. Open, safety and tag this(these) circuit breaker(s):
Subtask 12-31-10-410-050-A ** ON A/C NOT FOR ALL | 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 |
| 122VU | AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY | 6HU | U19 |
G. Access
(1) Close the cockpit door.
(2) Lock the toilet doors open.
(1) Close the cockpit door.
(2) Lock the toilet doors open.