associated with Fault Code Number (FCN) 205
- do a check for a blockage of the APU inlet.
(1) If the fault continues:
- do a check for APU internal damage:
- do check for contamination of the MAGNETIC-DRAIN PLUG (Ref. AMM TASK 49-91-42-200-004).
NOTE : If the MAGNETIC-DRAIN PLUG is not contaminated, continue
____
without starting the APU
- .
- remove the end cap from the STARTER MOTOR (8KA).
- use a socket and a ratchet on the shaft of the STARTER MOTOR (8KA) to turn the APU counterclockwise (in the direction of the arrow on the housing).
- make sure that the APU rotates freely.
(a) If the APU rotates freely:
- do a check for damage of the IGV linkage.
1 If the IGV linkage is damaged or the force to move the IGV
_
linkage exceeds 20 lbs.:
- replace the APU (4005KM) (Ref. AMM TASK 49-11-11-000-004) and (Ref. AMM TASK 49-11-11-400-004).
2 If the IGV linkage is OK:
_
- replace the IGV ACTUATOR (8014KM) (Ref. AMM TASK 49-23-51-000-004) and (Ref. AMM TASK 49-23-51-400-004).
(b) If the APU does not rotate freely:
- replace the APU (4005KM) (Ref. AMM TASK 49-11-11-000-004) and (Ref. AMM TASK 49-11-11-400-004).
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 226
201-210, Config-1 Aug 01/05 CES
TASK 49-00-81-810-811
APU AUTO SHUTDOWN - OVERTEMPERATURE (on speed), IGV Position disagrees with
Command (131-9(A))
1. Possible Causes
_______________
- IGV POSITION DISAGREES WITH COMMAND
- damage/leakage of the fuel supply and return lines of the IGV ACTUATOR (P21)
- damage of the IGV ACTUATOR linkage and the IGV assembly
- damage/contamination of the electical connector P21
- IGV ACTUATOR (P21)
- aircraft wiring
- ECB (59KD)
- APU (4005KM)
- IGV ACTUATOR (8014KM)
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific multimeter
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 49-00-00-860-008 APU Start by External Power (131-9(A))
AMM 49-11-11-000-004 Removal of the Power Plant (APU) (131-9(A))
AMM 49-11-11-400-004 Installation of the Power Plant (APU) (131-9(A))
AMM 49-23-51-000-004 Removal of the Inlet Guide Vane - Actuator (8014KM)
(131-9(A)) AMM 49-23-51-400-004 Installation of the Inlet Guide Vane - Actuator (8014KM) (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)) ASM 49-61/01
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
IGV POSITION DISAGREES WITH COMMAND
(4) Start the APU and apply Bleed Air for 20 seconds, minimum (Ref. AMM TASK 49-00-00-860-008).
4. Fault Isolation
_______________ R **ON A/C 001-049, 101-105, 107-107, 151-154, 201-207,
A. If an APU auto shutdown occurs during the APU operation and the APU SHUTDOWN report gives the maintenance message:
OVERTEMPERATURE
CHECK IGV ASSEMBLY/IGV ACTUATOR P21
associated with Fault Code Number (FCN) 83
- do a check for damage/leakage of the fuel supply and return lines of the IGV ACTUATOR (P21).
(1) If there is damage/leakage in the fuel supply and return lines:
- do a repair
(2) If the fuel supply and return lines are OK:
- do a check for damage of the IGV ACTUATOR linkage and the IGV assembly.
(a) If the IGV ACTUATOR linkage/IGV assembly are OK:
- do a check for damage/contamination of the electical connector P21 of the ICV ACTUATOR (P21).
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