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时间:2011-03-29 09:20来源:蓝天飞行翻译 作者:航空
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 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 '>' adjacent to the related CFDS failure message:

 - the MCDU menu shows LOAD VALVE SOLENOID SHOWS CIRCUIT FAILURE

 (4) 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) 127
 - 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:


 - use a multimeter to do a resistance check across pin 1 and pin 2 of the LOAD CONTROL VALVE (P12) pin 1 and pin 5 of the LOAD CONTROL VALVE (P12)
 (a) If the resistance is not between 15 Ohms to 80 Ohms (pin 1-2) or < 100K Ohms (pin 1-5):

 - replace the LOAD CONTROL VALVE (P12) (Ref. AMM TASK 49-51-51-000-004) and (Ref. AMM TASK 49-51-51-400-004).

 (b) If the resistance is
 between 15 Ohms and 80 Ohms (pin 1-2)
 and
 > 100K Ohms (pin 1-5):

 

 - do a check and repair of the aircraft wiring between the ECB (59KD) AB/F10 and the LOAD CONTROL VALVE (P12) P12/1 and/or LOAD CONTROL VALVE (P12) P12/2 and aircraft GND (Ref. ASM 49-61/02).
 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).
 「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 A278
 201-210, Config-1 Aug 01/05 CES


 **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) 127
 - do a check for damage/contamination of electrical connector P12 of the LOAD CONTROL VALVE (8050KM)
 (1) If the electrical connector P12 is damaged/contaminated:

 - do a repair/cleaning.

 (2) If the electrical connector is OK:


 - use a multimeter to do a resistance check across pin 1 and pin 2 of the LOAD CONTROL VALVE (8050KM) pin 1 and pin 5 of the LOAD CONTROL VALVE (8050KM)
 (a) If the resistance is not between 15 Ohms to 80 Ohms (pin 1-2) or < 100K Ohms (pin 1-5):

 - replace the LOAD CONTROL VALVE (8050KM) (Ref. AMM TASK 49-51-51-000-001) and (Ref. AMM TASK 49-51-51-400-001).

 (b) If the resistance is
 between 15 Ohms and 80 Ohms (pin 1-2)
 and
 > 100K Ohms (pin 1-5):

 

 - do a check and repair of the aircraft wiring between the ECB (59KD) AB/F10 and the LOAD CONTROL VALVE (8050KM) P12/1 and/or LOAD CONTROL VALVE (8050KM) P12/2 and aircraft GND (Ref. ASM 49-61/02).
 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).
R **ON A/C 001-049, 101-105, 107-107, 151-199, 201-210,
 B. 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 A279
 201-210, Config-1 Aug 01/05 CES

 TASK 49-00-81-810-856


 Bleed Shutoff due to Reverse Flow Condition (131-9(A))
 1. Possible Causes
_______________
 - BLEED SHUTOFF DUE TO REVERSE FLOW CONDITION

 - blockade of the APU inlet

 - contamination/damage of the electrical connector P18

 - SURGE CONTROL VALVE (P18)

 - contamination/damage of the electrical connector P24

 - DIFFERENTIAL PRESSURE TRANSDUCER (P24)

 - contamination/damage of the electrical connector P23

 - TOTAL PRESSURE TRANSDUCER (P23)

 - flow sensor assembly and associated lines

 - aircraft wiring

 - ECB (59KD)

 - SURGE CONTROL VALVE (8058KM)

 - DIFFERENTIAL PRESSURE TRANSDUCER (8043KM)

 - TOTAL PRESSURE TRANSDUCER (8044KM)
 
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