Sensor Monitoring Fault at the LH Aft Passenger Compartment Emergency Exit

TASK 52-21-00-810-802-A
Sensor Monitoring Fault at the LH Aft Passenger Compartment Emergency Exit

1. Possible Causes

PROX SW-HANDLE FLAP, L AFT EMER EXIT [21WV1]
wiring
IND LT-SLIDE ARMED, L EMER EXIT [2WN1]
SDAC-1 [1WV1]
SDAC-2 [1WV2]

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
AMM 25-23-47-000-001	Removal of the Lining from the Emergency Exit Hatches
AMM 25-23-47-400-001	Installation of the Lining on the Emergency Exit Hatches
ASM 315405
AMM 31-60-00-860-001	EIS Start Procedure
AMM 52-71-13-000-001	Removal of the Proximity Switches
AMM 52-71-13-400-001	Installation of the Proximity Switches
ASM 527301
AMM 52-73-21-000-003	Removal of the SLIDE ARMED Indicator-Light of the Emergency Exit
AMM 52-73-21-400-003	Installation of the SLIDE ARMED Indicator-Light of the Emergency Exit

3. Fault Confirmation
Subtask 52-21-00-865-053-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	EIS/SLIDES/ARM AND WARN/FLT	15WN	P11
121VU	EIS/SLIDES/ARM AND WARN/GND	13WN	P10
121VU	EIS/SDAC1 AND 2/DOOR/DET/PAX	48WV	P05

Subtask 52-21-00-710-051-A ** ON A/C NOT FOR ALL

B. Test
(1) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only)
AMM 31-60-00-860-001
(2) Remove and install the cover flap of the LH-Aft emergency-exit hatch (referred to as the hatch) AMM 25-23-47-000-001 and AMM 25-23-47-400-001.

NOTE: This makes sure that the target bracket of the cover flap is in its correct installation position.

(3) On the DOOR/OXY page of the lower ECAM DU, look for the possible fault indication.

4. Fault Isolation
Subtask 52-21-00-810-051-A ** ON A/C NOT FOR ALL

A. When the cover flap is correctly installed and the door page of the lower ECAM DU shows the symbol for the hatch and the message EMER EXIT in amber:

make sure that the adjustment of the PROX SW-HANDLE FLAP, L AFT EMER EXIT [21WV1] is correct AMM 52-71-13-400-001.

(1) If the fault continues:

install the jumper wire between the:
PROX SW-HANDLE FLAP, L AFT EMER EXIT [21WV1] connectors A/C and A/B ASM 315405.

(a) If the message EMER EXIT goes off and the symbol for the hatch changes to green:

replace the PROX SW-HANDLE FLAP, L AFT EMER EXIT [21WV1] AMM 52-71-13-000-001 and AMM 52-71-13-400-001.

(b) If the message EMER EXIT remains on in amber:

do a check for 28 VDC between the:
PROX SW-HANDLE FLAP, L AFT EMER EXIT [21WV1] connectors A/A and A/C ASM 315405.

1 If there is 28 VDC:

do a check and repair the wiring between:
the PROX SW-HANDLE FLAP, L AFT EMER EXIT [21WV1] connector A/B and the IND LT-SLIDE ARMED, L EMER EXIT [2WN1] connector A/E ASM 315405.

2 If there is no 28 VDC:

do a check and repair the wiring between the:
PROX SW-HANDLE FLAP, L AFT EMER EXIT [21WV1] connector A/A and the IND LT-SLIDE ARMED, L EMER EXIT [2WN1] connector A/R ASM 315405.
PROX SW-HANDLE FLAP, L AFT EMER EXIT [21WV1] connector A/C and ground ASM 315405.

(2) 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.

(a) If the fault continues:

do a check and repair the wiring between:
the IND LT-SLIDE ARMED, L EMER EXIT [2WN1] connector A/G and the SDAC-1 [1WV1] SDAC-2 [1WV2] connector AA/11C ASM 527301 .

1 If the fault continues:
do the trouble shooting procedure of the SDAC-1 [1WV1] SDAC-2 [1WV2] (Ref. TSM TASK 31-54-00-810-803) or (Ref. TSM TASK 31-54-00-810-810).

Subtask 52-21-00-710-055-A ** ON A/C NOT FOR ALL

B. Do a test as given in Para. 3.A. to make sure that the operation is correct.

5. Close-up
Subtask 52-21-00-860-051-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 04:34:48 UTC