DOC AIRBUS | AMM A320FMAIN GEAR AND DOORS - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The Main Landing Gear (MLG) retracts into bays on the underside of the aircraft. The MLG bays are closed by the MLG doors (Ref. AMM D/O 32-12-00-00).
** ON A/C NOT FOR ALL The Main Landing Gear (MLG) retracts into bays on the underside of the aircraft. The MLG bays are closed by the MLG doors (Ref. AMM D/O 32-12-00-00).
Main Landing-Gear Leg and Doors2. Component Location
The MLG (Ref. AMM D/O 32-11-00-00) is in the wing between the rear spar and gear rib 5 at zones 730 and 740. They support the aircraft on the ground and absorb loads during landing, take off and taxi.
** ON A/C NOT FOR ALL The MLG (Ref. AMM D/O 32-11-00-00) is in the wing between the rear spar and gear rib 5 at zones 730 and 740. They support the aircraft on the ground and absorb loads during landing, take off and taxi.
3. System Description
The MLG includes these parts:
The MLG legs have twin wheels, each wheel has a multi-disc brake unit (Ref. AMM D/O 32-40-00-00).
** ON A/C NOT FOR ALL The MLG includes these parts:
- a MLG shock absorber
- a side stay assembly which includes a lock stay
- a retraction actuator
- electrical and hydraulic dressings
- a torque-link damper.
The MLG legs have twin wheels, each wheel has a multi-disc brake unit (Ref. AMM D/O 32-40-00-00).
4. Power Supply
Not applicable
** ON A/C NOT FOR ALL Not applicable
5. Interface
Not applicable
** ON A/C NOT FOR ALL Not applicable
6. Component Description
Not applicable
** ON A/C NOT FOR ALL Not applicable
7. Operation/Control and Indicating
The extension and retraction system (Ref. AMM D/O 32-30-00-00):
Proximity sensors on the MLG and the MLG doors give position data to the Landing Gear Control and Interface Unit (LGCIU).
Each MLG has three doors (Ref. AMM D/O 32-12-00-00):
** ON A/C NOT FOR ALL The extension and retraction system (Ref. AMM D/O 32-30-00-00):
- extends and retracts the landing gear
- opens and closes the related doors (Ref. AMM D/O 32-12-00-00).
Proximity sensors on the MLG and the MLG doors give position data to the Landing Gear Control and Interface Unit (LGCIU).
Each MLG has three doors (Ref. AMM D/O 32-12-00-00):
- a fixed fairing door that is attached to the MLG leg
- a hinged door that is attached to the underside of the wing
- a main door that is hydraulically operated and closes the section of the fuselage after the MLG has retracted or extended.
8. BITE Test
Not applicable
Not applicable