HPC Bleed Valve Pressure Signal Failure on Channel A and B

TASK 75-32-00-810-870-A
HPC Bleed Valve Pressure Signal Failure on Channel A and B

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 75-32-00-810-831-A	HPC Bleed Valve Pressure Signal Failure Channel A
TSM TASK 75-32-00-810-834-A	HPC Bleed Valve Pressure Signal Failure Channel B

3. Fault Confirmation
Subtask 75-32-00-710-125-A ** ON A/C NOT FOR ALL

A. Not Applicable

4. Fault Isolation
Subtask 75-32-00-810-151-A ** ON A/C NOT FOR ALL

A. Do the two tasks as follows:
(1) Do the troubleshooting procedure (Ref. TSM TASK 75-32-00-810-831).
(2) Do the troubleshooting procedure (Ref. TSM TASK 75-32-00-810-834).

5. Close-up
Subtask 75-32-00-860-088-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 04:37:23 UTC