A320 Trouble Shooting Manual 排故手册 机载辅助动力 2(110)

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R  - do a repair/cleaning. 
R  (2) If the electrical connectors are OK: 
R  - replace the TOTAL PRESSURE TRANSDUCER (8044KM) (Ref. AMM TASK 49-
R  51-17-000-002) and (Ref. AMM TASK 49-51-17-400-002). 
R  (a) If the fault continues: 
R  - replace the DIFFERENTIAL PRESSURE TRANSDUCER (8043KM) (Ref. AMM 
R  TASK 49-51-16-000-002) and (Ref. AMM TASK 49-51-16-400-002). 
R  1 If the fault continues:_ 
R  - replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-003) and 
R  (Ref. AMM TASK 49-61-34-400-003). 
R  **ON A/C 001-049, 101-105, 107-107, 151-199, 201-210, 
R  C. Do a check of the APU GND SCANNING menu to verify the fault is not
 present.

 「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 A298
 201-210, Config-1 Aug 01/05 CES

 TASK 49-00-81-810-861

 Load-Control Valve (P12) Fault (131-9(A))
 1. Possible Causes
_______________
 - LOAD CONTROL VALVE SHOWS OPEN SWITCH FAILURE

 - LOAD CONTROL VALVE SHOWS CLOSED SWITCH FAILURE

 - LOAD CONTROL VALVE SHOWS NOT OPEN

 - damage/contamination of electrical connector P12

 - LOAD CONTROL VLV (P12)

 - aircraft wiring

 - ECB (59KD)

 - LOAD CONTROL VLV (8050KM)

 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 49-51-51-000-004 Removal of the Load Control Valve (8050KM) (131-9(A))
 AMM 49-51-51-400-004 Installation of the Load Control Valve (8050KM)

 (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 LAST LEG/PREVIOUS LEG report.

 (3) Push the '>'-key adjacent to the related CFDS failure message.

 (4) If the MCDU menu shows:
 LOAD CONTROL VALVE SHOWS OPEN SWITCH FAILURE
 or
 LOAD CONTROL VALVE SHOWS CLOSED SWITCH FAILURE

 

 - do the Fault Confirmation that follows:
 (a) Get access to the APU TEST menu.

 (b) Push the TEST line key.

 「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 A299
 201-210, Config-1 Aug 01/05 CES

 (5) If the MCDU menu shows
 LOAD CONTROL VALVE SHOWS NOT OPEN

 - do the Fault Confirmation that follows:
 (a) Start the APU and apply Bleed Air for 20 seconds, minimum (Ref. AMM TASK 49-00-00-860-008)

 (b) Get access to the APU GND SCANNING menu.

 4. Fault Isolation
_______________ R **ON A/C 001-049, 101-105, 107-107, 151-154, 201-207,
 A. If the APU GND SCANNING menu gives the maintenance message:
 LOAD CONTROL VALVE P12
 associated with Fault Code Number (FCN) 88, 96 or 97

 - do a check for damage/contamination of electrical connector P12 of the LOAD CONTROL VALVE (P12).
 (1) If the electrical connector P12 is damaged/contaminated:

 - do a repair/cleaning.

 (2) If the electrical connector is OK:

 - replace the LOAD CONTROL VLV (P12) (Ref. AMM TASK 49-51-51-000-004) and (Ref. AMM TASK 49-51-51-400-004).
 (a) If the fault continues:
 - do a check and repair of the aircraft wiring from the ECB (59KD) AB/F10,D7,D14 to the LOAD CONTROL VALVE (P12) P12/1,3,4 the LOAD CONTROL VALVE (P12) P12/2 to GND (Ref. ASM 49-61/01).
 1 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).
 **ON A/C 001-049, 101-105, 151-199, 201-210,
 Post SB 49-1062 For A/C 001-049,101-105,151-154,201-207,

 A. If the APU GND SCANNING menu gives the maintenance message:
 LOAD CONTROL VALVE (8050KM)
 associated with Fault Code Number (FCN) 88, 96 or 97
　
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