TASK 49-00-00-810-967
APU Master Switch ON Legend inoperative
1. Possible Causes
_______________
- P/BSW-APU/MASTER SW (14KD)
- bulbs
- aircraft wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
33-14-00-810-801 Failure of One Annunciator Light Only AMM 33-14-00-710-001 Operational Test of the Annunciator Light Test System in the Cockpit ASM 49-61/01
3. Fault Confirmation
__________________
A. Test
(1) Push the APU Master SW p/bsw and check that the ON legend comes on.
(2) Release the APU Master SW p/bsw.
4. Fault Isolation
_______________
A. If the ON legend is off:
- do the Operational Test of the Annunciator Light Test System in the Cockpit (Ref. AMM TASK 33-14-00-710-001).
(1) If the fault continues:
- replace the bulbs.
(a) If the fault continues:
- do the trouble shooting of the anunciator light test system (Ref. TASK 33-14-00-810-801).
(2) If the Annunciator Light Test is OK:
- do a check for a GND signal at the APU Master SW p/bsw (14KD) A/C1 (Ref. ASM 49-61/01).
(a) If there is no GND signal:
- repair the aircraft wiring.
「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 A236
Config-2 Aug 01/05 CES
(b) If there is a GND signal:
- replace the P/BSW-APU/MASTER SW (14KD).
B. Do the test given in para. 3.
TASK 49-00-00-810-968
APU Start Switch ON Legend inoperative
1. Possible Causes
_______________
- ECB (59KD)
- bulbs
- aircraft wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
33-14-00-810-801 Failure of One Annunciator Light Only AMM 33-14-00-710-001 Operational Test of the Annunciator Light Test System in the Cockpit 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 49-42/01
3. Fault Confirmation
__________________
A. Test
(1) Release the BAT1 and BAT2 p/bsw to the OFF position.
(2) Push the APU Master SW p/bsw and wait until the air-intake flap is in the open position.
(3) Push the APU Start SW p/bsw and check that the ON legend comes on.
(4) Release the APU Master SW p/bsw.
(5) Push the BAT1 and BAT2 p/bsw to the ON position.
4. Fault Isolation
_______________
A. If the ON legend is off:
- do the Operational Test of the Annunciator Light Test System in the Cockpit (Ref. AMM TASK 33-14-00-710-001).
(1) If the fault continues:
- replace the bulbs.
(a) If the fault continues:
(Ref. TASK 33-14-00-810-801).
(2) If the Annunciator Light Test is OK:
- check and repair the aircraft wiring between ECB (59KD) AB/H9 and RELAY BOARD (7LP) A/15 (Ref. ASM 49-42/01).
(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 49-00-00-810-969
APU AUTO SHUT DOWN - LOSS OF SPEED, ECB (59KD) Fault (APS 3200)
1. Possible Causes
_______________
- ECB (59KD)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 49-00-00-710-005 Self-Test of the ECB (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)
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