PMG Fault (PMG and Cooling Fan Assy) (APS 3200)

TASK 49-00-00-810-982-A
PMG Fault (PMG and Cooling Fan Assy) (APS 3200)

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ESPM 2052210
ESPM 2053210
ESPM 205321A
AMM 49-00-00-710-008	Operational Test of the APU
AMM 49-52-53-000-001	Removal of the PMG and Cooling Fan Assembly (APS 3200)
AMM 49-52-53-400-001	Installation of the PMG and Cooling Fan Assembly (APS 3200)
ASM 496102
AMM 49-61-34-000-002	Removal of the Electronic Control Box (ECB) (APS 3200)
AMM 49-61-34-400-002	Installation of the Electronic Control Box (ECB) (APS 3200)

3. Fault Confirmation
Subtask 49-00-00-710-380-B ** ON A/C NOT FOR ALL

A. Do the operational test of the APU AMM 49-00-00-710-008.

4. Fault Isolation
Subtask 49-00-00-810-344-C ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message:

COOLING FAN/PMG ASSY (8055KM):

replace the PMG and COOLING FAN ASSEMBLY (8055KM) AMM 49-52-53-000-001 and AMM 49-52-53-400-001.

(1) If the fault continues:

do a check and repair the wiring from the ECB (59KD) AC/10, 11 to the PMG and COOLING FAN ASSEMBLY (8055KM) P28/2, 3 ASM 496102 ESPM 2052210 ESPM 2053210 ESPM 205321A.
do a check and repair the wiring from the ECB (59KD) AB/H4 to the PMG and COOLING FAN ASSEMBLY (8055KM) P28/1 ASM 496102 ESPM 2052210 ESPM 2053210 ESPM 205321A.

(a) If the fault continues:

Subtask 49-00-00-710-381-B ** ON A/C NOT FOR ALL

B. Do the operational test of the APU AMM 49-00-00-710-008.

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

[Rev.8 from Aug 2018] 2026.04.04 04:34:29 UTC