Smoke and Dust on One Brake During Taxi with the Brakes not Operated

TASK 32-42-00-810-946-A
Smoke and Dust on One Brake During Taxi with the Brakes not Operated

1. Possible Causes

WHEEL-MLG, 2 [2649GM]
WHEEL-MLG, 4 [2650GM]
WHEEL-MLG, 1 [2651GM]
WHEEL-MLG, 3 [2652GM]
BRAKE-WHEEL 2 [2641GM]
BRAKE-WHEEL 4 [2642GM]
BRAKE-WHEEL 1 [2643GM]
BRAKE-WHEEL 3 [2644GM]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 07-12-00-582-002	Jacking of the Main Landing Gear
AMM 32-41-00-210-002	Inspection/Check of the Wheels and Tires
AMM 32-41-11-000-006	Removal of the MLG Wheel
AMM 32-41-11-400-006	Installation of the MLG Wheel
AMM 32-42-27-000-001	Removal of the Brake
AMM 32-42-27-210-001	Inspection/Check of the Brake with the Wheel Installed
AMM 32-42-27-210-006	Inspection/Check of the Brake with the Wheel Removed
AMM 32-42-27-400-001	Installation of the Brake

3. Fault Confirmation
Subtask 32-42-00-710-104-A

A. Test
Not applicable, the fault is evident.

4. Fault Isolation
Subtask 32-42-00-810-232-A

A. If there is smoke and dust during taxi with the brakes not operated:
(1) Lift the related axle with a jack AMM 07-12-00-582-002.
(2) Do a visual inspection/check of the related wheel AMM 32-41-00-210-002.
(3) If the visual inspection/check of the wheel is OK:
(a) Turn the wheel and do the inspection/check of the brake with the wheel installed AMM 32-42-27-210-001 and make sure during rotation that:

there is no vibration and abnormal noise
no metallic or carbon pieces fall down from the brake or the wheel
there is no dust on the brake.

(4) If the inspection/check of the brake with the wheel installed is OK:

do the steps (7)(b) and (c).
after the subsequent flight, make sure that the fault does not continue.

(5) If you are not sure of the condition or if the inspection of the brake with the wheel installed is not OK:
(a) Remove the related WHEEL-MLG, 2 [2649GM] or WHEEL-MLG, 4 [2650GM] or WHEEL-MLG, 1 [2651GM] or WHEEL-MLG, 3 [2652GM] AMM 32-41-11-000-006.
(b) Do the inspection/check of the related brake with the wheel removed AMM 32-42-27-210-006.
(6) If the inspection/check of the related brake with the wheel removed is not OK:
(a) Replace the defective BRAKE-WHEEL 2 [2641GM] or BRAKE-WHEEL 4 [2642GM] or BRAKE-WHEEL 1 [2643GM] or BRAKE-WHEEL 3 [2644GM] AMM 32-42-27-000-001 AMM 32-42-27-400-001 and do the steps that follow.
(7) If the inspection/check of the related brake with the wheel removed is OK:
(a) Install the related wheel AMM 32-41-11-400-006.
(b) Lower the aircraft on its wheels AMM 07-12-00-582-002.
(c) Make sure that the work area is clean and clear of tool(s) and other items.

[Rev.8 from Aug 2018] 2026.04.04 04:31:39 UTC