DOC AIRBUS | AMM A320FLowering of the Aircraft at Forward Jacking Point, MLG Wheels on the Ground
TASK 07-11-00-586-001-A
Lowering of the Aircraft at Forward Jacking Point, MLG Wheels on the Ground
To lower the aircraft for maintenance operations.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 07-11-00-941-060-A
Subtask 07-11-00-586-050-A
Subtask 07-11-00-080-050-A
[Rev.10 from 2021]
2026.04.01 04:07:14 UTC
Lowering of the Aircraft at Forward Jacking Point, MLG Wheels on the Ground
WARNING:
WHEN YOU DO THE LEVELING/LIFTING OR LOWERING OF THE AIRCRAFT, MAKE SURE THAT:
1. Reason for the Job- YOU USE THE CORRECT LIFTING/LOWERING EQUIPMENT FOR THE CONDITIONS
- THE PERSONS WHO OPERATE THE LIFTING/LOWERING EQUIPMENT HAVE THE CORRECT TRAINING AND KNOWLEDGE
- THE NECESSARY SAFETY AREA IS IDENTIFIED
- THERE ARE NO UNWANTED PERSONS OR EQUIPMENT IN THIS AREA
- THERE IS NO WORK IN PROGRESS ON THE AIRCRAFT.
To lower the aircraft for maintenance operations.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | AR | JACK - SAFETY STAY |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 29-10-00-863-002-A | Pressurize the Yellow Hydraulic System with a Hydraulic Ground Power-Cart |
| TASK 29-10-00-864-002-A | Depressurize the Yellow Hydraulic System |
| TASK 29-24-00-863-001-A | Pressurize the Yellow Hydraulic System with the Electric Pump |
| TASK 29-24-00-864-001-A | Depressurize the Yellow Hydraulic System |
| TASK 32-00-00-481-001-A | Installation of the Safety Devices on the Landing Gears |
Safety AreaSubtask 07-11-00-941-060-A
A. Safety Precautions
(1) Before the lowering operation, identify a safety area.
(3) Make sure that there are no persons is in the aircraft.
(4) Make sure that the safety devices are installed on the landing gears (Ref. AMM TASK 32-00-00-481-001).
(5) Make sure that the passenger/crew doors, the emergency exits and the cargo doors are closed and locked or fully open and locked.
(6) Remove the JACK - SAFETY STAY.
Subtask 07-11-00-865-059-A (1) Before the lowering operation, identify a safety area.
NOTE: Local safety regulations can contain additional rules and information applicable to safety areas.
(2) In the cockpit, make sure that the landing-gear control lever is set to down. (3) Make sure that there are no persons is in the aircraft.
(4) Make sure that the safety devices are installed on the landing gears (Ref. AMM TASK 32-00-00-481-001).
(5) Make sure that the passenger/crew doors, the emergency exits and the cargo doors are closed and locked or fully open and locked.
(6) Remove the JACK - SAFETY STAY.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 07-11-00-869-060-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | HYD/HYD PWR/B WARN/& CTL | 2702GJ | C12 |
| 123VU | B HYD/ELEC PUMP | 2701GJ | AB09 |
C. Aircraft Maintenance Configuration
(1) On the panel 110VU:
Subtask 07-11-00-941-061-A (1) On the panel 110VU:
- set the PARKING BRK control switch to OFF.
D. Preparation before Lowering
(1) To operate the jack, read the instructions written in red on the hydraulic jack.
(2) Loosen the safety nuts of the hydraulic jack.
4. Procedure(1) To operate the jack, read the instructions written in red on the hydraulic jack.
(2) Loosen the safety nuts of the hydraulic jack.
Subtask 07-11-00-586-050-A
A. Lowering
(1) Operate the jack slowly, until the Nose Landing Gear (NLG) shock absorber is compressed.
5. Close-up(1) Operate the jack slowly, until the Nose Landing Gear (NLG) shock absorber is compressed.
Subtask 07-11-00-080-050-A
A. Removal of Equipment
(1) When the aircraft is on its wheels, remove the jacks from under the nose jacking points.
Subtask 07-11-00-941-062-A (1) When the aircraft is on its wheels, remove the jacks from under the nose jacking points.
B. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at FR8.
Subtask 07-11-00-080-051-A Subtask 07-11-00-869-061-A (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at FR8.
D. Aircraft Maintenance Configuration
(1) On panel 110VU:
(a) Make sure that the pressure indication on the Yellow brake-pressure triple-indicator is correct.
(b) If necessary, pressurize the Yellow hydraulic system:
Subtask 07-11-00-865-060-A (1) On panel 110VU:
- Set the PARKING BRK control switch to ON.
(a) Make sure that the pressure indication on the Yellow brake-pressure triple-indicator is correct.
(b) If necessary, pressurize the Yellow hydraulic system:
- With the electric pump (Ref. AMM TASK 29-24-00-863-001) or
- With the ground power supply (Ref. AMM TASK 29-10-00-863-002).
E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 07-11-00-942-054-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | HYD/HYD PWR/B WARN/& CTL | 2702GJ | C12 |
| 123VU | B HYD/ELEC PUMP | 2701GJ | AB09 |
F. Close Access
(1) Remove the access platform(s).
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
Subtask 07-11-00-864-050-A (1) Remove the access platform(s).
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
G. Aircraft Maintenance Configuration
(1) Depressurize the Yellow hydraulic system
(Ref. AMM TASK 29-24-00-864-001) or (Ref. AMM TASK 29-10-00-864-002).
(1) Depressurize the Yellow hydraulic system
(Ref. AMM TASK 29-24-00-864-001) or (Ref. AMM TASK 29-10-00-864-002).