DOC AIRBUS | TSM A320FInternal Failure of the BMC1
TASK 36-11-00-810-912-A
Internal Failure of the BMC1
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 36-11-00-710-270-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 36-11-00-810-162-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:33:49 UTC
Internal Failure of the BMC1
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 36-11-00-740-001 | BITE Test of the BMC 1(2) |
| ASM 361101 | |
| AMM 36-11-15-000-001 | Removal of the Bleed Transferred Pressure-Transducer |
| AMM 36-11-15-400-001 | Installation of the Bleed Transferred Pressure-Transducer |
| 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 |
Subtask 36-11-00-710-270-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 36-11-00-810-162-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message:
CHECK BMC1
Subtask 36-11-00-810-162-B ** ON A/C NOT FOR ALL CHECK BMC1
- replace the BMC-1 [1HA1] AMM 36-11-34-000-001 and AMM 36-11-34-400-001.
- replace the XDCR-BLEED TRANSFER PRESS, ENG 1 [7HA1] AMM 36-11-15-000-001 and AMM 36-11-15-400-001.
- replace the SENSOR-EXCHANGER OUT TEMP, ENG 1 [6HA1] AMM 36-11-17-000-001 and AMM 36-11-17-400-001.
- do a check for 28VDC at pins 1 and 2 of the bleed transferred pressure transducer (7HA1).
- do a check and repair the wiring ASM 361101 between pin 1 of the bleed transferred pressure transducer (7HA1) and the first terminal block.
- do a check and repair the wiring ASM 361101 between:
. pin 3 of the bleed transferred pressure transducer (7HA1) and pin AA/15B of the BMC1 (1HA1)
. pin 4 of the bleed transferred pressure transducer (7HA1) and pin AA/14B of the BMC1
. pin 4 of the exchanger out temperature sensor (6HA1) and pin AA/10B of the BMC1
. pin 2 of the exchanger out temperature sensor (6HA1) and pin AA/9B of the BMC1.
A. If the test gives the maintenance message:
CHECK BMC1 (1HA1)
Subtask 36-11-00-710-271-A ** ON A/C NOT FOR ALL CHECK BMC1 (1HA1)
- replace the BMC-1 [1HA1] AMM 36-11-34-000-001 and AMM 36-11-34-400-001.
- replace the XDCR-BLEED TRANSFER PRESS, ENG 1 [7HA1] AMM 36-11-15-000-001 and AMM 36-11-15-400-001.
- replace the SENSOR-EXCHANGER OUT TEMP, ENG 1 [6HA1] AMM 36-11-17-000-001 and AMM 36-11-17-400-001.
- do a check for 28VDC at pins 1 and 2 of the bleed transferred pressure transducer (7HA1).
- do a check and repair the wiring ASM 361101 between pin 1 of the bleed transferred pressure transducer (7HA1) and the first terminal block.
- do a check and repair the wiring ASM 361101 between:
. pin 3 of the bleed transferred pressure transducer (7HA1) and pin AA/15B of the BMC1 (1HA1)
. pin 4 of the bleed transferred pressure transducer (7HA1) and pin AA/14B of the BMC1
. pin 4 of the exchanger out temperature sensor (6HA1) and pin AA/10B of the BMC1
. pin 2 of the exchanger out temperature sensor (6HA1) and pin AA/9B of the BMC1.
B. Do the test given in Para. 3.