4. Fault Isolation
_______________

 A. If the test gives the maintenance message P2 RAM AIR OUT ACTUATOR:
 - replace the ACTUATOR-AIR OUTLET FLAP (29HH) (referred to as ACTUATOR (29HH)) (Ref. AMM TASK 21-61-52-000-001) and (Ref. AMM TASK 21-61-52-400-001).
 (1) If the fault continues:

 - replace the CONTROLLER-PACK 2 TEMP (27HH) (Ref. AMM TASK 21-61-34-000-001) and (Ref. AMM TASK 21-61-34-400-001).

 (2) If the fault continues:

 - do a check and repair the wiring (Ref. ASM 21-61/02) from:

 - the ACTUATOR (29HH/A) to the PC 2 (27HH/AB),

 - the ACTUATOR (29HH/A) to the PC 2 (27HH/AA) and,

 - the ACTUATOR (29HH/A) to ground.

 B. Do the test as given in the Para. 3.A.

 **ON A/C ALL

 TASK 21-61-00-810-853
 Pack 1 Controller (ACSC 1) Fault - Outlet Temperature / Compressor Outlet
 Temperature Indication replaced by Amber XX

 1. Possible Causes
_______________
 - CONTROLLER-PACK 1 TEMP (7HH)

 - CONT-AIR COND SYSTEM 1 (47HH)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-61-00-810-820 Pack 1 Electrical Component with Short Circuit (AIR PACK 1 REGUL FAULT) AMM 21-61-00-710-001 Operational Test of the Pack Temperature-Control
 System AMM 21-61-34-000-001 Removal of the Pack Controller (7HH, 27HH) AMM 21-61-34-000-002 Removal of the Air-Conditioning System Controller
 (47HH, 57HH)
 AMM 21-61-34-400-001 Installation of the Pack Controller (7HH, 27HH)
 AMM 21-61-34-400-002 Installation of the Air-Conditioning System

 Controller (47HH, 57HH)
 ASM 21-61/03
 ASM 21-63/02

 3. Fault Confirmation
__________________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 A. Do the operational test of the pack temperature-control system (Ref. AMM TASK 21-61-00-710-001).
 NOTE : If a fault is detected, the PC gives a fault code for shop
____ maintenance in addition to the related CFDS message(s) (refer to TSM chapter 21-63-00, page block 301).
R **ON A/C 401-499,
 A. Do the operational test of the pack temperature-control system (Ref. AMM TASK 21-61-00-710-001).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞21-61-00∞∞∞∞∞∞∞∞∞∞Page A275
 Aug 01/05 CES

 **ON A/C ALL

 4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 A. If the test gives the maintenance message P1 CONT:
 - replace the CONTROLLER-PACK 1 TEMP (7HH) (Ref. AMM TASK 21-61-34-000-001) and (Ref. AMM TASK 21-61-34-400-001).
 (1) If the fault continues:

 - do a check and repair the wiring if necessary between: PC 1 (7HH) connector AA/5A and CB (1HH), PC 1 (7HH) connector AA/5B and GND, PC 1 (7HH) connector AB/13D and CB (2HH), PC 1 (7HH) connector AB/14A and GND (Ref. ASM 21-61/03).

 (2) If the fault continues:

 - do a check and repair if necessary the wiring of the signal: ARINC 429 XTR (P) from the ZC (8HK) to the PC 1 (7HH), ARINC 429 XTR (S) from the ZC (8HK) to the PC 1 (7HH), ARINC 429 RCV (S) from the ZC (8HK) to the PC 1 (7HH) (Ref. ASM 21-63/02).

 (3) If the fault continues:

 - do the trouble shooting procedures for the pack 1 electrical component with short circuit (Ref. TASK 21-61-00-810-820).
R **ON A/C 401-499,
 A. If the test gives the maintenance message ACSC1(47HH):
 - replace the CONT-AIR COND SYSTEM 1 (47HH) (Ref. AMM TASK 21-61-34-000-002) and (Ref. AMM TASK 21-61-34-400-002).
 (1) If the fault continues:
 - do the trouble shooting procedures for the pack 1 electrical component with short circuit (Ref. TASK 21-61-00-810-820).
 **ON A/C ALL
 B. Do the test as given in the Para. 3.A.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞21-61-00∞∞∞∞∞∞∞∞∞∞Page A276
 Aug 01/05 CES

 TASK 21-61-00-810-854

 Pack 2 Controller (ACSC 2) Fault - Outlet Temperature / Compressor Outlet
 Temperature Indication replaced by Amber XX
　
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