- replace the FUEL CONTROL UNIT (8022KM) (Ref. AMM TASK 49-32-11-000-003) and (Ref. AMM TASK 49-32-11-400-003).
(b) If the resistance values are in the specified limits:
- do a check and repair of the aircraft wiring from the ECB (59KD) AB/H11,G7,F6 to the FUEL CONTROL UNIT (8022KM) P19/6,7,8 and the FUEL CONTROL UNIT (8022KM) P19/9 to GND (Ref. ASM 49-61/02).
1 If the fault continues:
_
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-003) and (Ref. AMM TASK 49-61-34-400-003).
R **ON A/C 001-049, 101-105, 107-107, 151-199, 201-210,
B. Do the test given in para. 3.
「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 : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page 220
201-210, Config-1 Aug 01/05 CES
TASK 49-00-81-810-808
APU AUTO SHUTDOWN - UNDERSPEED, Low Fuel Pressure (131-9(A))
1. Possible Causes
_______________
- FUEL PRESSURE SHOWS LOW DURING APU RUN
- air in the fuel
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
28-22-00-810-801 APU Fuel System - Low Pressure
AMM 28-22-00-710-001 Operational Test of the APU Fuel-Pump System on
Ground to Purge the Fuel Line
AMM 49-00-00-860-008 APU Start by External Power (131-9(A))
3. Fault Confirmation
__________________
A. Read-out of ECB Trouble-Shooting Data
(1) Put the APU MASTER SW to the ON position.
(2) Get access to the APU SHUTDOWN report.
(3) Push the '>' adjacent to LRU DATA:
- the MCDU menu shows
FUEL PRESSURE SHOWS LOW DURING APU RUN
(4) Purge the APU fuel-line to make sure that there is no air in the fuel (Ref. AMM TASK 28-22-00-710-001) .
(5) Start the APU and apply Bleed Air for 20 seconds, minimum (Ref. AMM TASK 49-00-00-860-008).
4. Fault Isolation
_______________
A. If an APU auto shutdown occurs during the APU operation and the APU SHUTDOWN report gives the maintenance message:
UNDERSPEED
LOW FUEL PRESSURE
associated with the Fault Code Number (FCN) 100
- do the trouble shooting of the APU fuel system - low pressure (Ref. TASK 28-22-00-810-801).
「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 : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page 221
201-210, Config-1 Aug 01/05 CES
B. do the operational test of the APU (Ref. AMM TASK 49-00-00-860-008).
「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 : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page 222
201-210, Config-1 Aug 01/05 CES
TASK 49-00-81-810-809
APU AUTO SHUTDOWN - UNDERSPEED, ECB Internal Fault (131-9(A))
1. Possible Causes
_______________
- ECB INTERNAL FAILURE
- ECB (59KD)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 49-00-00-860-008 APU Start by External Power (131-9(A)) AMM 49-61-34-000-003 Removal of the Electronic Control Box (ECB) (131-9(A)) AMM 49-61-34-400-003 Installation of the Electronic Control Box (ECB) (131-9(A))
3. Fault Confirmation
__________________
A. Read-out of ECB Trouble-Shooting Data
(1) Put the APU MASTER SW to the ON position.
(2) Get access to the APU SHUTDOWN report.
(3) Push the '>' adjacent to LRU DATA:
- the MCDU menu shows
ECB INTERNAL FAILURE
(4) Start the APU and apply Bleed Air for 20 seconds, minimum (Ref. AMM TASK 49-00-00-860-008).
4. Fault Isolation
_______________
A. If an APU auto shutdown occurs during the APU operation and the APU SHUTDOWN report gives the maintenance message:
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