External Leaks of the Drain of the THS Actuator Motor

TASK 27-40-00-810-815-A
External Leaks of the Drain of the THS Actuator Motor

1. Possible Causes

THS actuator motor
ACTUATOR-THS [9CE]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 27-44-51-000-001	Removal of the Trimmable Horizontal Stabilizer (THS) Actuator
AMM 27-44-51-400-001	Installation of the Trimmable Horizontal Stabilizer (THS) Actuator
AMM 27-44-53-000-001	Removal of the THS Actuator Motor
AMM 27-44-53-400-001	Installation of the THS Actuator Motor
AMM 29-00-00-790-001	Check of the External Leaks of the Hydraulic Components

3. Fault Confirmation
Subtask 27-40-00-869-050-A

A. Do a check of the external leaks of the drain of the THS actuator motor AMM 29-00-00-790-001.

4. Fault Isolation
Subtask 27-40-00-810-069-A

A. If the quantity of leaks is more than the limit:
(1) Replace the THS actuator motor AMM 27-44-53-000-001 and AMM 27-44-53-400-001.
(2) Do the test given in Para. 3.

Subtask 27-40-00-810-070-A

B. If the fault continues:
(1) Replace the ACTUATOR-THS [9CE] AMM 27-44-51-000-001 and AMM 27-44-51-400-001.
(2) Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:27:36 UTC