No SLIDE Indication on the DOOR/OXY Page when the L Aft Escape Slide Handle is in the SLIDE ARMED Position

TASK 52-13-00-810-806-A
No SLIDE Indication on the DOOR/OXY Page when the L Aft Escape Slide Handle is in the SLIDE ARMED Position

1. Possible Causes

IND LT-SLIDE ARMED, AFT L DOOR [3WN1]
IND LT-SLIDE ARMED, L EMER EXIT [2WN1]
IND LT-SLIDE ARMED, FWD L DOOR [1WN1]
RELAY-PWR SPLY SWITCHOVER [12WN]
wiring from the connector (7WN1-A) to the indicator light (3WN1)
wiring from the indicator light (3WN1) to the SDAC-1(2) (1WV1(2))
wiring from the connector (7WN1-A) pin A/C to the ground terminal
wiring from the indicator light (3WN1) to the indicator light (2WN1)
wiring from the indicator light (2WN1) to the indicator light (1WN2)
wiring from the indicator light (1WN1) to the relay (12WN)
wiring from the relay (12WN) to the circuit breaker (13WN)
wiring from the relay (12WN) to the circuit breaker (15WN)
PROX SW-HANDLE, L AFT ESC SLIDE [7WN1]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
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 31-60-00-860-001	EIS Start Procedure
AMM 52-71-00-820-002	Adjustment of the Proximity Switches of the Passenger/Crew Doors with the CHECKING TOOL-DOORS
ASM 527301
AMM 52-73-11-000-002	Removal of the Proximity Switches of the Aft Passenger/Crew Doors
AMM 52-73-11-400-002	Installation of the Proximity Switches of the Aft Passenger/Crew Doors
AMM 52-73-21-000-001	Removal of the SLIDE ARMED Indicator-Light of the FWD Passenger/Crew Door
AMM 52-73-21-000-002	Removal of the SLIDE ARMED Indicator-Light of the Aft Passenger/Crew Door
AMM 52-73-21-000-003	Removal of the SLIDE ARMED Indicator-Light of the Emergency Exit
AMM 52-73-21-400-001	Installation of the SLIDE ARMED Indicator-Light of the FWD Passenger/Crew Door
AMM 52-73-21-400-002	Installation of the SLIDE ARMED Indicator-Light of the Aft Passenger/Crew Door
AMM 52-73-21-400-003	Installation of the SLIDE ARMED Indicator-Light of the Emergency Exit

3. Fault Confirmation
Subtask 52-13-00-860-064-A

A. Job Set-up
(1) Aircraft Maintenance Configuration
(a) Energize the aircraft electrical circuits
AMM 24-41-00-861-002.
(b) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
AMM 31-60-00-860-001.

Subtask 52-13-00-865-055-A

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	EIS/SLIDES/ARM AND WARN/GND	13WN	P10

Subtask 52-13-00-710-064-A

C. Test
(1) On the ECAM control panel:

push the DOOR key to get the DOOR/OXY page.

(2) Make sure that the SLIDE indication is not shown on the DOOR/OXY page when the L aft escape-slide handle is in the SLIDE ARMED position.

4. Fault Isolation
Subtask 52-13-00-810-067-A

A. If the test confirms the fault:

disconnect the connector of the handle proximity switch (7WN1)
install the jumper wire between the pins B and C of the connector (7WN1-A) ASM 527301
do the test given in Para 3.B.

(1) If the test confirms the fault:

replace the IND LT-SLIDE ARMED, AFT L DOOR [3WN1] AMM 52-73-21-000-002 and AMM 52-73-21-400-002.

(a) If the fault continues:

replace the IND LT-SLIDE ARMED, L EMER EXIT [2WN1] AMM 52-73-21-000-003 and AMM 52-73-21-400-003.

(b) If the fault continues:

replace the IND LT-SLIDE ARMED, FWD L DOOR [1WN1] AMM 52-73-21-000-001 and AMM 52-73-21-400-001

replace the RELAY-PWR SPLY SWITCHOVER [12WN] ASM 527301.

(d) If the fault continues:

do a check for a ground signal at pin A/C of the proximity switch (7WN1) ASM 527301.

1 If there is a ground signal:

do a check and repair the wiring from the connector (7WN1-A) to the indicator light (3WN1) pin A/B to pin H ASM 527301
do a check and repair the wiring from the indicator light (3WN1) to the SDAC-1(2) (1WV1(2)) pin K to pin AA (AD)/12B(12H) ASM 527301.

2 If there is no ground signal:

repair the wiring from the connector (7WN1-A) pin A/C to the ground terminal ASM 527301.

(e) If the fault continues:

do a check and repair the wiring from the indicator light (3WN1) to the indicator light (2WN1) pin A to pin B ASM 527301 and ASM 527301.
do a check and repair the wiring from the indicator light (2WN1) to the indicator light (1WN2) pin A to pin B ASM 527301.
do a check and repair the wiring from the indicator light (1WN1) to the relay (12WN) pin A to pin A/B2 ASM 527301.
do a check and repair the wiring from the relay (12WN) to the circuit breaker (13WN) pin A/B3 to pin 2 ASM 527301.
do a check and repair the wiring from the relay (12WN) to the circuit breaker (15WN) pin A/B1 to pin 2 ASM 527301.

(2) If the test does not confirm the fault:

remove the jumper wire between the pins B and C of the connector (7WN1-A)
connect the connector of the handle proximity switch (7WN1)
adjust the handle proximity switch (7WN1) with the doors checking tool AMM 52-71-00-820-002 or with the ECAM system AMM 52-71-00-820-002.

(a) If the fault continues:

replace the PROX SW-HANDLE, L AFT ESC SLIDE [7WN1] AMM 52-73-11-000-002 and AMM 52-73-11-400-002.

Subtask 52-13-00-710-065-A

B. Test
(1) On the ECAM control panel:

push the DOOR key to get the DOOR/OXY page.

(2) Make sure that the SLIDE indication is shown on the DOOR/OXY page when the L aft escape-slide handle is in the SLIDE ARMED position.

5. Close-up
Subtask 52-13-00-860-065-A

A. Put the aircraft back to its initial configuration.
(1) On the ECAM control panel, set the LOWER DISPLAY and the UPPER DISPLAY potentiometers to OFF.
(2) De-energize the aircraft electrical circuits
AMM 24-41-00-862-002.

[Rev.8 from Aug 2018] 2026.04.04 04:34:46 UTC