High bleed pressure fluctuation on Engine 1 at take-off or climb phase

TASK 36-11-00-810-938-A
High bleed pressure fluctuation on Engine 1 at take-off or climb phase

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 36-11-53-000-001	Removal of the Overpressure Valve
AMM 36-11-53-400-001	Installation of the Overpressure Valve

3. Fault Confirmation
Subtask 36-11-00-710-384-A ** ON A/C NOT FOR ALL

A. Not applicable.

4. Fault Isolation
Subtask 36-11-00-810-226-A ** ON A/C NOT FOR ALL

A. Replace the VALVE-OVERPRESSURE, ENG 1 [5HA1] AMM 36-11-53-000-001 and AMM 36-11-53-400-001

Subtask 36-11-00-710-385-A ** ON A/C NOT FOR ALL

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

[Rev.8 from Aug 2018] 2026.04.04 04:33:50 UTC