Low Bleed Temperature of the Engine 2 in Cruise

TASK 36-11-00-810-894-A
Low Bleed Temperature of the Engine 2 in Cruise

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 36-11-00-740-001	BITE Test of the BMC 1(2)
ASM 361102
AMM 36-11-17-000-001	Removal of the Heat-Exchanger Outlet-Temperature Sensor
AMM 36-11-17-400-001	Installation of the Heat-Exchanger Outlet-Temperature Sensor
AMM 36-11-43-000-001	Removal of the Fan-Air Valve Control-Thermostat
AMM 36-11-43-400-001	Installation of the Fan-Air Valve Control-Thermostat
AMM 36-11-54-000-001	Removal of the Fan Air Valve
AMM 36-11-54-400-001	Installation of the Fan Air Valve

3. Fault Confirmation
Subtask 36-11-00-710-235-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the BITE test of the BMC 2 AMM 36-11-00-740-001.

4. Fault Isolation
Subtask 36-11-00-810-144-A ** ON A/C NOT FOR ALL

A. If the BITE test gives no maintenance message:

(1) If the BITE test gives the class 3 maintenance message:
TEMP SENSOR 6HA2

Replace the SENSOR-EXCHANGER OUT TEMP, ENG 2 [6HA2] AMM 36-11-17-000-001 and AMM 36-11-17-400-001.

(a) If the fault continues:

Do a check of the wiring ASM 361102 between:
. pin 4 of the engine 2 exchanger output temperature sensor (6HA2) and pin AA/10B of the BMC 2 (1HA2)
. pin 2 of the engine 2 exchanger output temperature sensor and pin AA/9B of the BMC 2
. pin 1 and the ground.

(b) If the wiring is not correct:

1 If the fault continues:

Replace the THERMOSTAT-FAN AIR VALVE CTL [7170HM] AMM 36-11-43-000-001 and AMM 36-11-43-400-001.

Subtask 36-11-00-710-236-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 04:33:48 UTC