N1 Sensor Electrical Failure on Channel A and B

TASK 77-11-00-810-855-A
N1 Sensor Electrical Failure on Channel A and B

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 77-11-00-810-808-A	N1 Sensor Electrical Failure Channel B
TSM TASK 77-11-00-810-809-A	N1 Sensor Electrical Failure Channel A

3. Fault Confirmation
Subtask 77-11-00-710-111-A ** ON A/C NOT FOR ALL

A. Not Applicable

4. Fault Isolation
Subtask 77-11-00-810-178-A ** ON A/C NOT FOR ALL

A. Do the two tasks as follows:
(1) Do the troubleshooting procedure (Ref. TSM TASK 77-11-00-810-809).
(2) Do the troubleshooting procedure (Ref. TSM TASK 77-11-00-810-808).

5. Close-up
Subtask 77-11-00-860-096-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 04:37:55 UTC