(b) If there is no ground signal:
 - replace the APU MASTER SW (14KD).
 1_ If the fault continues:
 - do a check and repair of the aircraft wiring between the
 MAIN START CONTACTOR (5KA) B5 and the terminal block

 2266VT/4 (Ref. AWM 49-42-01).
 B. Do the test given in para. 3.

 TASK 49-00-00-810-987
 Backup Start Contactor output open (APS 3200)

 1. Possible Causes
_______________
 - B/U START CONTACTOR (10KA)

 - wiring

 - 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 49-42-55-000-001 Removal of the Start Contactors (5KA,10KA)
 AMM 49-42-55-400-001 Installation of the Start Contactors (5KA,10KA)
 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. 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:
 CONTACTOR (10KA)
 Fault Code Number: 018 or 086

 - replace the B/U START CONTACTOR (10KA) (Ref. AMM TASK 49-42-55-000-001) and (Ref. AMM TASK 49-42-55-400-001).
 (1) If the fault continues:
 - do a check and repair the wiring between the Back-Up Start Contactor(10KA) and the ECB (59KD) (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.
 「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 A262
 Config-2 Aug 01/05 CES TASK 49-00-00-810-988

 Backup Start Contactor failed open (APS 3200)
 1. Possible Causes
_______________
 - ECB (59KD)

 - 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 49-61-34-000-002 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. 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:
 CURRENT LIMITER 6KA / CONTACTOR 10KA
 Fault Code Number: 126

 - do a check and repair of the wiring between ECB (59KD) AB/E3 and the BACKUP START CONTACTOR (10KA) A/G (Ref. ASM 49-42/01).
 (1) If the fault continues:
 - replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-002) (Ref. AMM TASK 49-61-34-400-002).
 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 : 106-106, 108-149, 211-299, 301-399, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page A263
 Config-2 Aug 01/05 CES

 TASK 49-00-00-810-989

 Main Start Contactor failed open (APS 3200)
 1. Possible Causes
_______________
 - ECB (59KD)

 - wiring

 - aircraft wiring

 - CONTACTOR-MAIN START (5KA)

 - 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 49-61-34-000-002 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
　
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