- replace and/or connect the APU exhaust muffler correctly (Ref. AMM TASK 49-81-41-000-003) and (Ref. AMM TASK 49-81-41-400-003).

 (4) If the APU bleed-air duct and the APU exhaust muffler are in the correct condition and connected correctly:

 - replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-003) and (Ref. AMM TASK 49-61-34-400-003).
 C. If no fault was found in APU compartment:
 - do a check and make sure that the FIRE EMERG-STOP relay (5WF) is serviceable,

 - do a check and make sure that the APU SHUT OFF pushbutton switch (1KL) is serviceable (Ref. AMM TASK 49-62-00-710-007).

 - do a check and make sure the APU FIRE/WARN module (1WD) is serviceable (Ref. AMM TASK 26-13-00-710-001).

 「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 : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page 207
 201-210, Config-1 Aug 01/05 CES

 (1) If the FIRE EMERG STOP relay (5WF) is not serviceable:

 - replace the FIRE EMERG-STOP RELAY (5WF).

 (2) If the APU SHUT OFF pushbutton switch (1KL) is not serviceable:

 - replace the APU SHUT OFF PUSHBUTTON-SWITCH (1KL).

 (3) If the APU FIRE/WARN module (1WD) is not serviceable:

 - replace the APU FIRE/WARN MODULE (1WD).

 (4) If the FIRE EMERG STOP relay (5WF), the APU SHUT OFF pushbutton switch (1KL) and the APU FIRE/WARN module (1WD) are serviceable:

 - do a check and repair the wiring:

 - from the FIRE EMERG STOP relay (5WF) A/D1 to the ECB (59KD) AB/B4.

 - from the APU FIRE/WARN module (1WD) F/S to the ECB (59KD) AB/B4.

 - from the APU SHUT OFF pushbutton switch (1KL) 1 to the ECB (59KD) AB/B4.

 (a) 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).
 D. If the APU BITE Test gives the maintenance message:
 ECB 59KD:
 - replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-003) and (Ref. AMM TASK 49-61-34-400-003).
 E. If you do not find the signs of a fire and the tests give a different maintenance message, you can find the related trouble shooting procedure in the applicable Page Block 101.
 F. 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 208
 201-210, Config-1 Aug 01/05 CES

 TASK 49-00-81-810-804

 APU AUTO SHUTDOWN - ECB FAILURE, 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:
 ECB FAILURE
 ECB (59KD)
 with the associated Fault Code Numbers (FCN) 5, 176, 177, 178, 179, 180 or 230
 - replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-003) and (Ref. AMM TASK 49-61-34-400-003).
 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 209
 201-210, Config-1 Aug 01/05 CES

 TASK 49-00-81-810-805
 APU AUTO SHUTDOWN - UNDERSPEED, APU is unable to hold Speed (131-9(A))
 1. Possible Causes
_______________
　
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