W DOC AIRBUS | TSM A320F

The SLIDE ARMED indicator light of the forward left passenger/crew-door is inoperative in flight

TASK 52-11-00-810-810-A
The SLIDE ARMED indicator light of the forward left passenger/crew-door is inoperative in flight

1. Possible Causes
  • IND LT-SLIDE ARMED, FWD L DOOR [1WN1]
  • wiring from the proximity switch (13WV1) to the indicator light (1WN1)
  • wiring from the proximity switch (13WV1) pin C to the ground
  • RELAY-PWR SPLY SWITCHOVER [12WN]
  • wiring from the relay (12WN) to the indicator light (1WN1)
  • C/B-EIS/SLIDES/ARM AND WARN/FLT [15WN]
  • wiring from the circuit breaker (15WN) to the relay (12WN)
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
AMM 25-62-44-000-002
Removal of the Left-Hand Escape-Slide Pack-Assembly
AMM 25-62-44-000-012
Removal of the Left-Hand Escape-Slide-Raft Pack-Assembly
AMM 25-62-44-400-006
Installation of the Left-Hand Escape-Slide Pack-Assembly
AMM 25-62-44-400-007
Installation of the Left-Hand Escape-Slide-Raft Pack-Assembly
ASM 315405
AMM 52-10-00-860-001
Special Precautions before Work on the Passenger/Crew Door
AMM 52-10-00-860-002
Special Precautions after Work on the Passenger/Crew Door
ASM 527301
AMM 52-73-21-000-001
Removal of the SLIDE ARMED Indicator-Light of the FWD Passenger/Crew Door
AMM 52-73-21-400-001
Installation of the SLIDE ARMED Indicator-Light of the FWD Passenger/Crew Door
3. Fault Confirmation
Subtask 52-11-00-860-056-A
A. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits
AMM 24-41-00-861-002.
   (2) Disarm the percussion system of the door damper and emergency operation cylinder AMM 52-10-00-860-001.
   (3) Remove the escape slide or escape slide/raft pack assembly AMM 25-62-44-000-002 or AMM 25-62-44-000-012.
Subtask 52-11-00-865-059-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
121VUEIS/SLIDES/ARM AND WARN/GND13WNP10
Subtask 52-11-00-710-056-A
C. Test
ACTION
RESULT
Open the left forward passenger/crew-door with the escape slide handle in the ARMED position.
Make sure that the SLIDE ARMED indicator-light of the forward left passenger/crew door is not on.
4. Fault Isolation
Subtask 52-11-00-810-053-A
A. If the test confirms the fault:
  • Do a check of the circuit breaker 15WN status ASM 527301.
   (1) If the circuit breaker is closed:
  • Do a check for 28VDC at the indicator light (1WV1) pin A ASM 527301.
     (a) If there is 28VDC:
       1 If the fault continues:
  • Do a check for a ground signal at pin C of the proximity switch (13WN1) ASM 315405.
         a If there is a ground signal:
  • Do a check and repair the wiring from the proximity switch (13WV1) to the indicator light (1WN1) pin B to pin F ASM 315405 and ASM 527301.
         b If there is no ground signal:
  • Repair the wiring from the proximity switch (13WV1) pin C to the ground, ASM 315405.
     (b) If there is no 28VDC:
  • Do a check for 28VDC at pin A/B1 of the relay (12WN) ASM 527301.
       1 If there is 28VDC:
         a If the fault continues:
  • Do a check and repair the wiring from the relay (12WN) to the indicator light (1WN1) pin A/B2 to pin A ASM 527301.
       2 If there is no 28VDC:
  • Do a check of the wiring from the circuit breaker (15WN) to the relay (12WN), pin 2 to A/B1.
         a If there is continuity:
         b If there is no continuity:
  • Repair the wiring from the circuit breaker (15WN) to the relay (12WN) pin 2 to pin A/B1 ASM 527301.
   (2) If the circuit breaker is open:
     (a) If the fault continues:
Subtask 52-11-00-710-057-A
B. Test
ACTION
RESULT
Open the forward left passenger/crew-door with the escape slide handle in the ARMED position.
Make sure that the SLIDE ARMED indicator light of the left forward passenger/crew-door is on.
5. Close-up
Subtask 52-11-00-860-057-A
A. Aircraft Maintenance Configuration
   (1) Install the escape slide or escape slide/raft pack assembly AMM 25-62-44-400-006 or AMM 25-62-44-400-007.
   (2) Arm the percussion system of the door damper and emergency operation cylinder AMM 52-10-00-860-002.
   (3) De-energize the aircraft electrical circuits
AMM 24-41-00-862-002.
[Rev.8 from Aug 2018] 2026.04.04 04:34:43 UTC
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