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 a If there is no continuity:
_ -repair the above wiring.
 b If there is continuity:
_ -replace the circuit breaker (2HA1).
 3 If the fault continues:
_
 -make sure that there is a 0 psig output signal (0.9VDC) on the BMC1 (1HA1) connector between pins AA/11B and AA/12B.
 a If there is no 0.9VDC:
_
 -replace the XDCR-BLEED REGULATED PRESS, ENG 1 (8HA1) (Ref. AMM TASK 36-11-16-000-001) and (Ref. AMM TASK 36-11-16-400-001).
 4 If the fault continues:
_
 -do a check and repair the wiring from the bleed regulated-pressure transducer (8HA1) to the BMC1 (1HA1), pins A/3 and A/4 to pins AA/12B and AA/11B.
 (b) If there is 28VDC:
 -replace the XDCR-BLEED REGULATED PRESS, ENG 1 (8HA1).
 (2) If the circuit breaker is open:
 -close the circuit breaker.
 (a) If the circuit breaker trips:
 -replace the BMC-2 (1HA2) (Ref. AMM TASK 36-11-34-000-001) and (Ref. AMM TASK 36-11-34-400-001).
 1
 -EFF : ALL

-∞∞36-11-00∞∞∞∞∞∞∞∞∞∞Page B205
 --Feb 01/05R ---CES -

 1_ If the fault continues:
 - do a check for a short to ground at the wiring from pin A/1
 of the bleed regulated-pressure transducer (8HA1) to the
 circuit breaker (2HA1).

 a If there is a short to ground:
_
 -replace the C/B-BMC 1 (2HA1).
 (b) If the circuit breaker stays closed and the fault continues:
 -replace the BMC-2 (1HA2).
 C. After the subsequent flight, make sure that the fault does not continue.
 1
R -EFF : ALL

-∞∞36-11-00∞∞∞∞∞∞∞∞∞∞Page B206
 --Feb 01/05 ---CES - Loss of the Bleed Regulator-Pressure Transducer of the Engine 2 (Detected by BMC1)

 1. Possible Causes
_______________
 -XDCR-BLEED REGULATED PRESS, ENG 2 (8HA2)
 -BMC-1 (1HA1)
 -
wiring between pin A/2 of the bleed regulated-pressure transducer (8HA2) and the ground terminal

 -
wiring between pin A/1 of the bleed regulated-pressure transducer (8HA2) and the circuit breaker (2HA2)

 -
wiring from the bleed regulated-pressure transducer (8HA2) to the BMC2 (1HA2

 -
wiring from pin A/1 of the bleed regulated-pressure transducer (8HA2) to the circuit breaker (2HA2)

 -C/B-BMC 2 (2HA2)
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 36-11-16-000-001 Removal of the Bleed Regulated Pressure Transducer (8HA1,8HA2) AMM 36-11-16-400-001 Installation of the Bleed Regulated Pressure
 Transducer (8HA1,8HA2) AMM 36-11-34-000-001 Removal of the BMC (1HA1, 1HA2) AMM 36-11-34-400-001 Installation of the BMC (1HA1, 1HA2) ASM 36-11/02
 3. Fault Confirmation
__________________
 A. Test
 (1) Not Applicable
 4. Fault Isolation
_______________
 A. Table of the circuit breakers used in this procedure:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
122VU AIR BLEED/ENG 2/MONG 2HA2 Z22
 1
R -EFF : ALL

-∞∞36-11-00∞∞∞∞∞∞∞∞∞∞Page B207
 --Feb 01/05 ---CES -

 B. If the fault symptom is identified by the maintenance message: REG-PRESS XDCR 8HA2
 -do a check of the status of the circuit breaker (2HA2).
 (1) If the circuit breaker is closed:
 -do a check for 28VDC at pin A/1 of the bleed regulated-pressure transducer (8HA2) (Ref. ASM 36-11/02).
 (a) If there is no 28VDC:
 -do a check for ground at pin A/2 of the bleed regulated-pressure transducer (8HA2).
 1_ If there is no ground signal:
 - repair the wiring between pin A/2 of the bleed
 regulated-pressure transducer (8HA2) and the ground
 terminal.

 2 If there is a ground signal:
_
 -do a check of the wiring between pin A/1 of the bleed regulated-pressure transducer (8HA2) and the circuit breaker (2HA2).
 a If there is no continuity:
_ -repair the above wiring.
 b If there is continuity:
_ -replace the circuit breaker (2HA2).
 3 If the fault continues:
_
 -make sure that there is a 0 psig output signal (0.9VDC) on the BMC2 (1HA2) connector between pins AA/11B and AA/12B.
　
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