W DOC AIRBUS | TSM A320F

Abnormal Bleed Temperature Shown Amber during BMC1 Test with the Engines Not in Operation

TASK 36-11-00-810-928-A
Abnormal Bleed Temperature Shown Amber during BMC1 Test with the Engines Not in Operation

1. Possible Causes
  • BMC-1 [1HA1]
  • wiring from the connector 1HA1-AB/1B to the ground
  • SENSOR-EXCHANGER OUT TEMP, ENG 1 [6HA1]
  • wiring from the connector 1HA1-AA/9B to the connector 6HA1-A/2
  • wiring from the connector 1HA1-AA/10B to the connector 6HA1-A/4
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
WARNING NOTICE(S)
 B. Referenced Information
REFERENCE
DESIGNATION
AMM 36-11-00-740-001
BITE Test of the BMC 1(2)
ASM 361101
AMM 36-11-17-000-001
Removal of the Heat-Exchanger Outlet-Temperature Sensor
AMM 36-11-17-400-001
Installation of the Heat-Exchanger Outlet-Temperature Sensor
AMM 36-11-34-000-001
Removal of the BMC
AMM 36-11-34-400-001
Installation of the BMC
3. Fault Confirmation
Subtask 36-11-00-860-062-A ** ON A/C NOT FOR ALL
A. Job Set-Up
   (1) On the center pedestal, on the ENG panel 115VU:
  • put a WARNING NOTICE(S) to tell persons not to start the engines.
Subtask 36-11-00-740-050-A ** ON A/C NOT FOR ALL
B. Test
   (1) Do the BITE test of the BMC1 AMM 36-11-00-740-001.
4. Fault Isolation
Subtask 36-11-00-810-216-A ** ON A/C NOT FOR ALL
A. If during the test with the engines not in operation, an abnormal bleed temperature is shown amber on the BLEED page of the lower ECAM DU:
   (1) If during the test, the abnormal bleed temperature is shown amber on the BLEED page for the engines 1 and 2:
  • on the connector 1HA1-AB, on the wiring side, make sure that there is ground at pin 1B ASM 361101:
     (a) If there is ground at pin 1B:
     (b) If there is no ground at pin 1B:
  • do a check and repair the wiring from the connector 1HA1-AB/1B to the ground
  • refer to Para. 4.B.
   (2) If during the test, the abnormal bleed temperature is shown amber on the BLEED page for the engine 1 only:
     (a) If the fault continues:
  • do a check and repair the wiring from the connector 1HA1-AA/9B to the connector 6HA1-A/2 and wiring from the connector 1HA1-AA/10B to the connector 6HA1-A/4 ASM 361101
  • refer to Para. 4.B.
     (b) If the fault does not continue:
  • refer to Para. 4.B.
Subtask 36-11-00-710-369-A ** ON A/C NOT FOR ALL
B. Install the BMC2 (1HA2) AMM 36-11-34-400-001 and do the test given in Para. 3.
[Rev.8 from Aug 2018] 2026.04.04 04:33:50 UTC
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