Loss of Normal Braking because of Damaged Tachometer Drive(s)

TASK 32-42-00-810-926-A
Loss of Normal Braking because of Damaged Tachometer Drive(s)

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 32-42-34-000-001	Removal of the Braking/Steering Control Unit (BSCU)
AMM 32-42-34-400-001	Installation of the Braking/Steering Control Unit (BSCU)
AMM 32-42-68-000-003	Removal of the MLG Tachometer-Drive
AMM 32-42-68-400-003	Installation of the MLG Tachometer-Drive

3. Fault Confirmation
Subtask 32-42-00-710-094-A

A. Test
Not applicable.

4. Fault Isolation
Subtask 32-42-00-810-194-A

A. Do a check of the Four Tachometer Drives for Damage
(1) If you find damage on one ore more tachometer drives:

replace the damaged drive(s) AMM 32-42-68-000-003 and AMM 32-42-68-400-003:
. DRIVE ASSY-TACHOMETER,WHEEL 1 [2681GM]
. DRIVE ASSY-TACHOMETER,WHEEL 2 [2680GM]
. DRIVE ASSY-TACHOMETER,WHEEL 3 [2679GM]
. DRIVE ASSY-TACHOMETER,WHEEL 4 [2678GM]

(2) If you find no damage on the tachometer drives:

Subtask 32-42-00-710-097-A

B. After the subsequent flight, make sure that the fault does not continue.

[Rev.8 from Aug 2018] 2026.04.04 04:31:37 UTC