- do a check and repair the wiring from the ECB (59KD) AC10/11 to the PMG/Cooling Fan Assy Connector P28/2, 3 (Ref. ASM 49-61/02).
(1) If the fault continues:
- do a test of the PMG fuse with a multimeter (diode scale):
- place the positive lead on PIN 3 of P28 Connector and the negative lead on PIN 2.
- if it is approx. 0.9V, the fuse is OK.
(a) if the fuse is OK:
- replace the COOLING FAN/PMG ASSY (8053KM) (Ref. AMM TASK 49-52-53-000-001) and (Ref. AMM TASK 49-52-53-400-001).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-106, 108-149, 211-299, 301-399, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page 294
Config-2 Aug 01/05 CES
1_ If the fault continues:
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-002) and
(Ref. AMM TASK 49-61-34-400-002).
(b) if the fuse is blown:
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-002) and (Ref. AMM TASK 49-61-34-400-002) and the COOLING FAN/PMG ASSY (8053KM) (Ref. AMM TASK 49-52-53-000-001) and (Ref. AMM TASK 49-52-53-400-001) at the same time.
B. Do the test given in para. 3.
TASK 49-00-00-810-932
APU AUTO SHUT DOWN - BACKUP OVERSPEED, ECB 59KD or Cooling Fan/PMG Assy(8055KM) Fault, (APS 3200)
1. Possible Causes
_______________
- PMG COOLING FAN connector P28
- PMG COOLING FAN ASSEMBLY (8055KM)
- ECB (59KD)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 49-00-00-710-008 Operational Test of the APU (APS 3200) AMM 49-52-53-000-001 Removal of the PMG and Cooling Fan Assembly (8055KM) (APS 3200) AMM 49-52-53-400-001 Installation of the PMG and Cooling Fan Assembly (8055KM) (APS 3200) AMM 49-61-34-000-002 Removal of the Electronic Control Box (ECB) (59KD) (APS 3200) AMM 49-61-34-400-002 Installation of the Electronic Control Box (ECB) (59KD) (APS 3200)
3. Fault Confirmation
__________________
A. Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-008).
4. Fault Isolation
_______________
A. If the APU Last Leg Report gives the maintenance message:
COOLING FAN PMG ASSY (8055KM)
Fault Code Number: 115
NOTE : The APU SHUTDOWNS report gives the maintenance message:
____
BACKUP OVERSPEED - COOLING FAN PMG ASSY (8055KM)
APU Auto Shut Down Fault Code Number: 115
- do a check of the PMG COOLING FAN connector P28 and replace if necessary.
(1) If the fault continues:
- replace the PMG COOLING FAN ASSEMBLY (8055KM) (Ref. AMM TASK 49-52-53-000-001) and (Ref. AMM TASK 49-52-53-400-001).
(a) If the fault continues:
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-002) and (Ref. AMM TASK 49-61-34-400-002).
B. Do the test given in para. 3.
TASK 49-00-00-810-933
APU AUTO SHUT DOWN - REVERSE FLOW, Bleed Flow Transducer Fault (APS 3200)
1. Possible Causes
_______________
- ECB (59KD)
- COMPRESSOR DISCHARGE-PRESSURE SNSR P24
- aircraft wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 49-00-00-710-008 Operational Test of the APU (APS 3200) AMM 49-51-19-000-002 Removal of the Sensor - Compressor Discharge Pressure (8039KM) (APS 3200) AMM 49-51-19-400-002 Installation of the Sensor - Compressor Discharge Pressure (8039KM) (APS 3200) AMM 49-61-34-000-002 Removal of the Electronic Control Box (ECB) (59KD) (APS 3200) AMM 49-61-34-400-002 Installation of the Electronic Control Box (ECB) (59KD) (APS 3200) ASM 49-61/02
3. Fault Confirmation
__________________
A. Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-008).
4. Fault Isolation
_______________
A. If an APU auto shutdown occurs during the operational test of the APU and the APU SHUTDOWNS report gives the maintenance message
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