Engine 1 Bleed Temperature Sensor Channel A Measurement Failure

TASK 36-11-00-810-A04-A
Engine 1 Bleed Temperature Sensor Channel A Measurement Failure

1. Possible Causes

SENSOR-EXCHANGER OUT TEMP, ENG 1 [6HA1]
wiring
BMC-1 [1HA1]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 361101
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 36-11-34-000-001	Removal of the BMC
AMM 36-11-34-400-001	Installation of the BMC

3. Fault Confirmation
Subtask 36-11-00-710-458-A ** ON A/C NOT FOR ALL

A. Test
(1) Not Applicable

4. Fault Isolation
Subtask 36-11-00-810-411-A ** ON A/C NOT FOR ALL

A. If the fault symptom is identified by the maintenance message:
TEMP SENSOR (6HA1)/BMC1 (1HA1)

Replace the SENSOR-EXCHANGER OUT TEMP, ENG 1 [6HA1] AMM 36-11-17-000-001 and AMM 36-11-17-400-001.

Subtask 36-11-00-810-454-A ** ON A/C NOT FOR ALL

B. If the fault continues:
(1) Do a check for ground at Exchanger Outlet Temperature-Sensor (6HA1) pin G/1 of the BMC1 (1HA1).
(a) If there is no ground:
1 Do a check of the wiring from BMC1 (1HA1) pin G/1 and the ground terminal ASM 361101.
2 If you find damage in the wiring:
a Repair or replace the wiring
(b) If there is ground:
1 Do a check of the wiring from Exchanger Outlet Temperature-Sensor (6HA1) pin B/1 and B/2 to BMC1 (1HA1) pin AA/2C and AA/2B ASM 361101.
2 If you find damage in the wiring:
a Repair or replace the wiring

Subtask 36-11-00-810-455-A ** ON A/C NOT FOR ALL

C. If the fault continues:
(1) Replace the BMC-1 [1HA1] AMM 36-11-34-000-001 and AMM 36-11-34-400-001.

Subtask 36-11-00-710-459-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 04:33:55 UTC