Loss of the Coupling between the HP Bleed Valve of the Engine 1 and the Related Closure Control Solenoid

TASK 36-11-00-810-841-A
Loss of the Coupling between the HP Bleed Valve of the Engine 1 and the Related Closure Control Solenoid

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 36-11-51-000-040	Removal of the High Pressure Bleed Valve
AMM 36-11-51-400-040	Installation of the High Pressure Bleed Valve
AMM 36-11-58-000-001	Removal of the HP Bleed Override Solenoid
AMM 36-11-58-400-001	Installation of the HP Bleed Override Solenoid

3. Fault Confirmation
Subtask 36-11-00-710-170-B ** ON A/C NOT FOR ALL

A. Not applicable.

4. Fault Isolation
Subtask 36-11-00-810-111-C ** ON A/C NOT FOR ALL

A. If the fault symptom is identified by the maintenance message:
HP BLEED-V 4000HA1 OR SOLENOID 11HA1

do a check and clean the sense line between the HP bleed valve (4000HA), the Solenoïd HP Bleed Override (11HA1) and the bleed pressure-regulator valve (4001HA).

(1) If the connections are not correct:

(2) If the connections are correct:

(3) If the fault continues:

replace the SOL-HP BLEED OVERRIDE, ENG1 [11HA1] AMM 36-11-58-000-001 and AMM 36-11-58-400-001.

Subtask 36-11-00-710-171-B ** 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 04:33:44 UTC