W DOC AIRBUS | TSM A320F

Fault of the Sensor Monitoring at the BULK Cargo-Compartment Door

TASK 52-33-00-810-801-A
Fault of the Sensor Monitoring at the BULK Cargo-Compartment Door

1. Possible Causes
  • PROX SW-FRAME, BULK CARGO COMPT DOOR [50WV]
  • wiring
  • SDAC-1 [1WV1]
  • SDAC-2 [1WV2]
  • C/B-EIS/SDAC1 AND 2/DOOR/DET/AVNCS [46WV]
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TSM TASK 31-54-00-810-803-A
Failure of the SDAC 2
TSM TASK 31-54-00-810-810-A
Failure of the SDAC 1
AMM 24-41-00-862-002
De-energize the Aircraft Electrical Circuits Supplied from the External Power
ASM 315405
AMM 31-60-00-860-001
EIS Start Procedure
AMM 52-30-00-860-001
Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
AMM 52-30-00-860-008
Close the Bulk Cargo-Compartment Door
AMM 52-71-12-000-003
Removal of the Proximity Switch
AMM 52-71-12-400-003
Installation of the Proximity Switch
3. Fault Confirmation
Subtask 52-33-00-710-050-A ** ON A/C NOT FOR ALL
A. Test
   (1) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
AMM 31-60-00-860-001.
   (2) Open and close the BULK Cargo-Compartment Door (referred to as cargo door) AMM 52-30-00-860-001 and AMM 52-30-00-860-008.
   (3) On the DOOR/OXY page of the lower ECAM DU, look for possible fault indications.
4. Fault Isolation
Subtask 52-33-00-810-050-A ** ON A/C NOT FOR ALL
A. When the BULK door is closed and the door page of the lower ECAM DU shows the symbol for the BULK door and the message BULK in amber:
   (1) If the fault continues:
  • install the jumper wire between the:
    PROX SW-FRAME, BULK CARGO COMPT DOOR [50WV] connectors A/B and A/C ASM 315405.
     (a) If the BULK symbol changes to green and the message BULK goes off:
     (b) If the message BULK stays on in amber:
  • do a check for 28 VDC between the:
    PROX SW-FRAME, BULK CARGO COMPT DOOR [50WV] connectors A/A and A/D ASM 315405.
       1 If there is 28 VDC:
  • do a check and repair the wiring between:
    PROX SW-FRAME, BULK CARGO COMPT DOOR [50WV] connector A/B and SDAC-1 [1WV1] or SDAC-2 [1WV2] connector AD/12D ASM 315405.
       2 If there is no 28 VDC:
  • do a check and repair the wiring between the:
    PROX SW-FRAME, BULK CARGO COMPT DOOR [50WV] connector A/A and the C/B-EIS/SDAC1 AND 2/DOOR/DET/AVNCS [46WV] ASM 315405.
   (2) If the fault continues:
do a trouble shooting of the SDAC-1 [1WV1] or SDAC-2 [1WV2] (Ref. TSM TASK 31-54-00-810-810) or (Ref. TSM TASK 31-54-00-810-803).
Subtask 52-33-00-710-051-A ** ON A/C NOT FOR ALL
B. Do the test as given in Para. 3.A. to make sure that the operation is correct.
5. Close-up
Subtask 52-33-00-860-050-A ** ON A/C NOT FOR ALL
A. De-energize the aircraft electrical circuits
AMM 24-41-00-862-002.
[Rev.8 from Aug 2018] 2026.04.04 04:34:51 UTC
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