-∞∞36-11-00∞∞∞∞∞∞∞∞∞∞Page B237
 --Aug 01/05 ---CES -

 B. If the fault symptom is identified by the maintenance message: DRIFT REG-PRESS XDCR 8HA2
 -do a check of the status of the AIR BLEED/ENG 2/MONG 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) (Ref. ASM 36-11/02).
 1 If there is no ground:
_
 -repair the wiring between pin A/2 of the bleed regulated pressure transducer (8HA2) and the ground (Ref. ASM 36-11/02).
 2 If there is a ground:
_
 -do a check of the wiring between pin A/1 of the bleed regulated pressure transducer (8HA2) and the circuit breaker (2HA2) (Ref. ASM 36-11/02).
 a If there is no continuity:
_ -repair the wiring.
 b If there is continuity:
_ -replace the C/B-AIR BLEED/ENG 2/MONG (Ref. ASM 36-11/02).
 3 If the fault continues:
_
 -make sure that there is a 0 psig output signal (0.9VDC) at the BMC2 (1HA2) connector between pins AA/11B and AA/12B.
 a If there is no 0.9VDC:
_
 -replace the XDCR-BLEED REGULATED PRESS, ENG 2 (8HA2) (Ref. AMM TASK 36-11-15-000-001) and (Ref. AMM TASK 36-11-15-400-001).
 4 If the fault continues:
_
 -do a check and repair the wiring between pins A/3 and A/4 of the bleed regulated pressure transducer (8HA2) and pins AA/12B and AA/11B of the BMC2 (1HA2) (Ref. ASM 36-11/02).
 (b) If there is 28VDC:
 -replace the XDCR-BLEED REGULATED PRESS, ENG 2 (8HA2) (Ref. AMM TASK 36-11-15-000-001) and (Ref. AMM TASK 36-11-15-400-001).
 1
R -EFF : 106-149, 229-299, 303-399, 401-499,

-∞∞36-11-00∞∞∞∞∞∞∞∞∞∞Page B238
 --Aug 01/05 ---CES -

 (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_ If the fault continues:
 - do a check of the wiring for a short to ground between pin
 A/1 of the bleed regulated pressure transducer (8HA2) and
 the AIR BLEED/ENG 2/MONG circuit breaker (2HA2) (Ref. ASM
 36-11/02).

 a If there is a short to ground:
_

 -repair the wiring. b If there is no short to ground:
_ -replace the C/B-AIR BLEED/ENG 2/MONG (Ref. ASM 36-11/02).

 (b) If the circuit breaker stays closed and the fault continues:
 -replace the BMC-2 (1HA2) (Ref. AMM TASK 36-11-34-000-001) and (Ref. AMM TASK 36-11-34-400-001).
 C. After the subsequent flight, make sure that the fault does not continue.
 1
R -EFF : 106-149, 229-299, 303-399, 401-499,

-∞∞36-11-00∞∞∞∞∞∞∞∞∞∞Page B239
 --Aug 01/05 ---CES - Drift of the Engine 1 Bleed Transferred Pressure Transducer

 1. Possible Causes
_______________
 -XDCR-BLEED TRANSFER PRESS, ENG 1 (7HA1)
 -BMC-1 (1HA1)
 -wiring
 -C/B-AIR BLEED/ENG 1/MONG
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 36-11-15-000-001 Removal of the Bleed Transferred Pressure Transducer (7HA1,7HA2) AMM 36-11-15-400-001 Installation of the Bleed Transferred Pressure
 Transducer (7HA1,7HA2) 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 36-11/01
 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 -------------------------------------------------------------------------------49VU AIR BLEED/ENG 1/MONG 2HA1 D11
 1
R -EFF : 106-149, 229-299, 303-399, 401-499,

-∞∞36-11-00∞∞∞∞∞∞∞∞∞∞Page B240
 --Aug 01/05 ---CES -
　
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