W DOC AIRBUS | TSM A320F

Failure of the Cockpit Additional Electrical-Outlet

TASK 25-18-00-810-801-A
Failure of the Cockpit Additional Electrical-Outlet

1. Possible Causes
  • OUTLET-115V/60HZ, F/O [4NA]
  • OUTLET-115V/60HZ, CAPT [5NA]
  • wiring
  • CONNECTOR-FILTERED, F/O (6NA)
  • CONNECTOR-FILTERED, CAPT (7NA)
  • STAT INV [3NA]
  • C/B-PILOTS OUTLETS/STAT INV [1NA]
  • C/B-PILOTS OUTLETS/115V 60HZ [2NA]
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TSM TASK 24-00-00-810-803-A
Circuit Breaker Tripped and/or C/B TRIPPED Warning
AMM 24-41-00-861-002
Energize the Aircraft Electrical Circuits from the External Power
AMM 24-41-00-862-002
De-energize the Aircraft Electrical Circuits Supplied from the External Power
ASM 251801
AMM 25-18-11-000-801
Removal of the Power Outlet Unit
AMM 25-18-11-400-801
Installation of the Power Outlet Unit
AMM 25-18-51-000-001
Removal of the Static Inverter
AMM 25-18-51-400-001
Installation of the Static Inverter
3. Fault Confirmation
Subtask 25-18-00-860-052-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits
AMM 24-41-00-861-002.
Subtask 25-18-00-710-050-A ** ON A/C NOT FOR ALL
B. Test
   (1) Connect an electrical device to the defective 115V/60Hz Captain outlet (5NA) or 115V/60Hz F/O outlet (4NA).
4. Fault Isolation
Subtask 25-18-00-865-050-A ** ON A/C NOT FOR ALL
A. Table of the circuit breakers used in this procedure:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUPILOTS OUTLETS/STAT INV1NAK25
121VUPILOTS OUTLETS/115V 60HZ2NAK23
Subtask 25-18-00-810-050-A ** ON A/C NOT FOR ALL
B. If the electrical device does not operate correctly:
   (1) On the SD, on the ELEC DC page, if the line connection between the DC2 busbar and the DC BAT busbar is shown:
  • Do the troubleshooting procedure related to the 28VDC BUS 2/BUS 3 SPLY contactor (1PC2).
   (2) On the SD, on the ELEC DC page, if the line connection between the DC2 busbar and the DC BAT busbar is not shown:
  • Go to Para 4.C.
Subtask 25-18-00-810-051-A ** ON A/C NOT FOR ALL
C. If the fault is confirmed:
  • Do a check of the status of the circuit breakers that follow:
    - PILOTS OUTLETS/STAT INV (1NA)
    - PILOTS OUTLETS/115V 60Hz (2NA).
   (1) If the PILOTS OUTLETS/STAT INV (1NA) and/or PILOTS OUTLETS/115V 60Hz (2NA) circuit breaker(s) is/are open:
   (2) If the PILOTS OUTLETS/STAT INV (1NA) and/or PILOTS OUTLETS/115V 60Hz (2NA) circuit breaker(s) is/are closed:
  • Go to Para 4.D.
Subtask 25-18-00-810-052-A ** ON A/C NOT FOR ALL
D. If the fault continues:
  • Connect a second electrical device to the other available outlet. Do not disconnect the first device.
   (1) If the second electrical device operates correctly:
  • Do a check to make sure that the first electrical device operates correctly.
     (a) If the first connected electrical device operates correctly:
  • Do a check for continuity between pin 3 and pin 4 of the defective outlet.
       1 If there is no continuity:
       2 If there is continuity:
  • Do a check and repair the wiring ASM 251801 between:
    . Pin A/E of the STAT INV (3NA) and pin 3 of the 115V/60Hz F/O outlet (4NA) or 115V/60Hz Captain outlet (5NA).
    . Pin 4 of the 115V/60Hz F/O outlet (4NA) or 115V/60Hz Captain outlet (5NA) and the ground.
     (b) If the first electrical device does not operate correctly:
For the 115V/60Hz Captain outlet (5NA):
  • Do a check of the wiring of the defective outlet ASM 251801 between:
    . Pin 1 of the 115V/60Hz Captain outlet (5NA) and pin G of the Captain filtered connector (7NA)
    . Pin 2 of the 115V/60Hz Captain outlet (5NA) and pin C of the Captain filtered connector (7NA)
    . Pin A1 of the pilots outlets 115V/60Hz circuit breaker (2NA) and pin H of the Captain filtered connector (7NA)
    . Pin C1 of the pilots outlets/115V 60Hz circuit breaker (2NA) and pin D of the Captain filtered connector (7NA).
For the 115V/60Hz F/O outlet (4NA):
  • Do a check of the wiring of the defective outlet ASM 251801 between:
    . Pin 1 of the 115V/60Hz F/O outlet (4NA) and pin G of the F/O filtered connector (6NA)
    . Pin 2 of the 115V/60Hz F/O outlet (4NA) and pin C of the F/O filtered connector (6NA)
    . Pin A1 of the pilots outlets/115V 60Hz circuit breaker (2NA) and pin H of the F/O filtered connector (6NA)
    . Pin C1 of the pilots outlets/115V 60Hz circuit breaker (2NA) and pin D of the F/O filtered connector (6NA).
       1 If the wiring is not correct:
  • Repair the wiring .
       2 If the wiring is correct:
         a If the fault continues:
  • Replace the defective CONNECTOR-FILTERED, F/O (6NA) or CONNECTOR-FILTERED, CAPT (7NA).
   (2) If the second electrical device does not operate correctly:
   (3) If the fault continues:
  • Do a check for 28VDC at pin A/A of the STAT INV (3NA) ASM 251801.
     (a) If there is no 28VDC:
  • Do a check of the wiring between pin A/A of the STAT INV (3NA) and the pilots outlets/STAT INV circuit breaker (1NA) ASM 251801.
       1 If the wiring is not correct:
  • Repair the wiring .
       2 If the wiring is correct:
  • Replace the C/B-PILOTS OUTLETS/STAT INV [1NA] .
         a If the fault continues:
  • Repair the wiring between the pilots outlets/STAT INV circuit breaker (1NA) and the first terminal block ASM 251801.
     (b) If there is 28VDC:
  • Do a check of the wiring between pin A/B of the STAT INV (3NA) and pin A2 of the pilots outlets/115V 60Hz circuit breaker (2NA) ASM 251801.
  • Do a check of the wiring between pin A/C of the STAT INV (3NA) and pin C2 of the pilots outlets/115V 60Hz circuit breaker (2NA) ASM 251801.
       1 If the wiring is not correct:
  • Repair the wiring .
       2 If the wiring is correct:
  • Replace the C/B-PILOTS OUTLETS/115V 60HZ [2NA] .
5. Close-up
Subtask 25-18-00-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Put the aircraft back to its initial configuration.
   (2) De-energize the aircraft electrical circuits
AMM 24-41-00-862-002.
[Rev.8 from Aug 2018] 2026.04.04 04:27:00 UTC
"WTRUIB" 2025