High Bleed Temperature of the Engine 1 in Cruise

TASK 36-11-00-810-A26-A
High Bleed Temperature of the Engine 1 in Cruise

1. Possible Causes

VALVE-FAN AIR, ENG1 [9HA1]
VALVE-FAN AIR, ENG1 [7120HM1]
[4000HA]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 36-11-00-740-802	BITE Test of the Engine Bleed Air System (EBAS) (System Test)
AMM 36-11-51-000-802	Removal of the HP Bleed Valve
AMM 36-11-51-400-802	Installation of the HP Bleed Valve
AMM 36-11-54-000-802	Removal of the Fan Air-Valve Actuator
AMM 36-11-54-000-803	Removal of the Fan Air Valve (FAV)
AMM 36-11-54-400-802	Installation of the Fan Air-Valve Actuator
AMM 36-11-54-400-803	Installation of the Fan Air Valve (FAV)
AMM 36-11-54-720-804	Functional Test of the Opening of the Fan Air Valve with the Bleed Test Set P/N 98D36109001000

3. Fault Confirmation
Subtask 36-11-00-710-478-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the BITE test of the EBAS AMM 36-11-00-740-802.

4. Fault Isolation
Subtask 36-11-00-810-479-A ** ON A/C NOT FOR ALL

A. If the test gives a maintenance message:

Do the trouble shooting procedure related to the maintenance message.

(1) If there is no maintenance message:
(2) Do a functional test of the FAV AMM 36-11-54-720-804.
(a) If the test is not OK:
1 Replace VALVE-FAN AIR, ENG1 [9HA1] ACTUATOR AMM 36-11-54-000-802 and AMM 36-11-54-400-802.
2 Do the test given in Para. 3.

Subtask 36-11-00-810-522-A ** ON A/C NOT FOR ALL

B. If the fault continues:
(1) Replace VALVE-FAN AIR, ENG1 [7120HM1] BODY AMM 36-11-54-000-803 and AMM 36-11-54-400-803.

Do the test given in Para. 3.

Subtask 36-11-00-810-490-A ** ON A/C NOT FOR ALL

C. If the fault continues:

Replace [4000HA] AMM 36-11-51-000-802 and AMM 36-11-51-400-802.
Do the test given in Para. 3.

Subtask 36-11-00-710-479-A ** ON A/C NOT FOR ALL

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

[Rev.8 from Aug 2018] 2026.04.04 04:33:57 UTC