- replace the PHC-1 (6DA1) (Ref. AMM TASK 30-31-34-000-002) and (Ref. AMM TASK 30-31-34-400-002).

 (b) If there is not 28VDC:

 - do a check for a ground signal at pin A/U of the PHC 1 (6DA1):
 1 If there is no ground signal:

_
 - repair the wiring between the PHC 1 pin A/U and the ground terminal (Ref. ASM 30-31/01).
 「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 ∞∞30-31-00∞∞∞∞∞∞∞∞∞∞Page 212
 May 01/03R CES

 2_ If there is a ground signal:
 - do a check of the wiring between the PHC 1 pin A/M and the
 circuit breaker (5DA1).

 a If there is no continuity:
_
 - repair the above wiring. b If there is continuity:
_ - replace the circuit breaker (5DA1).
 (2) If the circuit breaker is open:
 - close the circuit breaker.
 (a) If the circuit breaker trips again:
 - replace the PHC-1 (6DA1). 1 If the fault continues:
_
 - do a check for a short to ground at the wiring between the PHC 1 pin A/M and the circuit breaker (5DA1).
 a If there is a short to ground:
_
 - repair the related wiring. b If there is no short to ground:
_ - replace the C/B-ANTI ICE/PROBES/1/STATIC (5DA1).
 (b) If the circuit breaker stays closed and the fault continues:
 - replace the PHC-1 (6DA1).
 B. Do the operational test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞30-31-00∞∞∞∞∞∞∞∞∞∞Page 213
 May 01/03R
 CES  Failure of the R Static Probe

 1. Possible Causes
_______________
 - PROBE-R STATIC, 1 (8DA1)

 - PHC-1 (6DA1)

 - wiring from the PHC 1 (6DA1) to the R static probe 1 (8DA1)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 30-31-00-710-001 Operational Test of the Probe Ice Protection
 AMM 30-31-34-000-002 Removal of the Probe Heat Computer (PHC)
 (6DA1,6DA2,6DA3)
 AMM 30-31-34-400-002 Installation of the Probe Heat Computer (PHC)
 (6DA1,6DA2,6DA3)
 AMM 34-11-16-000-001 Removal of the Static Probe
 (7DA1,7DA2,7DA3,8DA1,8DA2,8DA3)
 AMM 34-11-16-400-002 Installation of the Static Probe
 (7DA1,7DA2,7DA3,8DA1,8DA2,8DA3)
 ASM 30-31/01

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the probe ice protection (Ref. AMM TASK 30-31-00-710-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message R STATIC PROBE 8DA1:
 - do a check of the resistance between pin 2 and pin 1.
 (1) If the resistance is more than 13 ohms (open circuit) or less than 10 ohms (short circuit):

 (a) Replace the PROBE-R STATIC, 1 (8DA1), (Ref. AMM TASK 34-11-16-000-001) and (Ref. AMM TASK 34-11-16-400-002).

 (2) If the resistance is between 10 ohms and 13 ohms:

 (a) Replace the PHC-1 (6DA1), (Ref. AMM TASK 30-31-34-000-002) and (Ref. AMM TASK 30-31-34-400-002).
 「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 ∞∞30-31-00∞∞∞∞∞∞∞∞∞∞Page 214
 May 01/03R CES

 (b) If the fault continues:
 - do a check and repair the wiring from the PHC 1 (6DA1) to the R static probe 1 (8DA1) pin A/E to pin 2 (Ref. ASM 30-31/01).
 B. Do the operational test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞30-31-00∞∞∞∞∞∞∞∞∞∞Page 215
 May 01/03R
 CES  Failure of the Angle of Attack Sensor

 1. Possible Causes
_______________
 - SENSOR-ANGLE OF ATTACK, 1 (3FP1)

 - PHC-1 (6DA1)

 - wiring from the PHC 1 (6DA1) to the angle of attack sensor 1 (3FP1)

 2. Job Set-up Information
______________________
　
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