Loss of the Two Sensing Elements of the Exchanger Outlet Temperature-Sensor of the Engine 2

TASK 36-11-00-810-828-A
Loss of the Two Sensing Elements of the Exchanger Outlet Temperature-Sensor of the Engine 2

1. Possible Causes

SENSOR-EXCHANGER OUT TEMP, ENG 2 [6HA2]
wiring between pin A/1 of the exchanger outlet temperature-sensor (6HA2) and th ground terminal
wiring from the exchanger outlet temperature-sensor (6HA2) to the BMC2 (1HA2)
wiring from the exchanger outlet temperature-sensor (6HA2) to the BMC1 (1HA1)
BMC-2 [1HA2]
BMC-1 [1HA1]

2. Job Set-up Information
A. Referenced Information

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

3. Fault Confirmation
Subtask 36-11-00-710-108-A ** ON A/C NOT FOR ALL

A. Test.
(1) Not applicable, the fault is evident.

4. Fault Isolation
Subtask 36-11-00-810-080-A ** ON A/C NOT FOR ALL

A. If the fault symptom is identified by the 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.

(1) If the fault continues:

do a check for ground at pin A/1 of the exchanger outlet temperature-sensor (6HA2)

(a) If there is no ground:

do a check and repair the wiring between pin A/1 of the exchanger outlet temperature-sensor (6HA2) and th ground terminal ASM 361102.

(b) If there is ground:

do a check and repair the wiring from the exchanger outlet temperature-sensor (6HA2) to the BMC2 (1HA2), pins A/2 and A/4 to pins AA/9B and AA/10B ASM 361102 and
do a check and repair the wiring from the exchanger outlet temperature-sensor (6HA2) to the BMC1 (1HA1), pins A/3 and A/5 to pins AA/6D and AA/7D ASM 361101.

(2) If the fault continues:

Subtask 36-11-00-710-109-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 04:33:43 UTC