Left Hand Lower Locking Actuator Proximity Switch Signal Failure on Channel A and B

TASK 78-31-00-810-A48-A
Left Hand Lower Locking Actuator Proximity Switch Signal Failure on Channel A and B

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 78-31-00-810-959-A	Left Hand Lower Locking Actuator Proximity Switch Signal Failure on Channel A
TSM TASK 78-31-00-810-960-A	Left Hand Lower Locking Actuator Proximity Switch Signal Failure on Channel B

3. Fault Confirmation
Subtask 78-31-00-710-362-A ** ON A/C NOT FOR ALL

A. Not Applicable

4. Fault Isolation
Subtask 78-31-00-810-466-A ** ON A/C NOT FOR ALL

A. Do the two tasks as follows:
(1) Do the troubleshooting procedure (Ref. TSM TASK 78-31-00-810-959).
(2) Do the troubleshooting procedure (Ref. TSM TASK 78-31-00-810-960).

5. Close-up
Subtask 78-31-00-860-155-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.

[Rev.8 from Aug 2018] 2026.04.04 04:38:19 UTC