W DOC AIRBUS | AMM A320F

Operational Check of Emergency Lighting System including Check of All Cabin Lights and Signs


TASK 33-51-00-710-805-A
Operational Check of Emergency Lighting System including Check of All Cabin Lights and Signs


1. Reason for the Job
Refer to the MPD TASK: 335100-10
OPERATIONAL CHECK OF EMERGENCY LIGHTING SYSTEM INCLUDING CHECK OF ALL CABIN LIGHTS AND SIGNS
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
3. Job Set-up
CAUTION: DO NOT USE THE TEACH-IN PROCEDURE TO CLEAR EPSU FAILURE MESSAGES. THE TEACH-IN PROCEDURE IS NOT A SYSTEM RESET. IT CAN CHANGE THE EMERGENCY LIGHT CONFIGURATION AND CAUSE HIDDEN FAILURES.
NOTE: The teach-in procedure of the EPSUs measures and keeps the load values that are related to each EPSU. The EPSU controller refers to these load values when the BITE test of the emergency lighting system operates. Thus, it is necessary that the emergency lights of the related EPSUs operate correctly during the teach-in procedure.
Subtask 33-51-00-861-066-A
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 33-51-00-865-074-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VULIGHTING/EMER LT/CABIN2WLH06
49VULIGHTING/EMER LT/CABIN1WLH05
** ON A/C NOT FOR ALL
49VULIGHTING/EMER LT/CABIN2WLH04
49VULIGHTING/EMER LT/CABIN1WLH03
** ON A/C ALL
122VULIGHTING/CABIN/EMER/LT3WLV07
4. Procedure
Subtask 33-51-00-860-087-A ** ON A/C NOT FOR ALL
A. Preparation for Test
   (1) On overhead panel 25VU, make sure that EMER EXIT LT switch 4WL is in the OFF position.
   (2) On overhead panel 25VU, make sure that NO SMOKING switch 190RH is in the OFF position.
   (3) On Forward Attendant Panel (FAP) 120RH, make sure that the LIGHT EMER pushbutton switch and its integral light are off.
Subtask 33-51-00-860-087-D ** ON A/C NOT FOR ALL
A. Preparation for Test
   (1) On overhead panel 25VU, make sure that EMER EXIT LT switch 4WL is in the OFF position.
   (2) On overhead panel 25VU, make sure that NO SMOKING switch 190RH is in the OFF position.
   (3) On Flight Attendant Panel (FAP) 120RH, make sure that the EMER pushbutton switch and its integral light are off.
Subtask 33-51-00-860-087-E ** ON A/C NOT FOR ALL
A. Preparation for Test
   (1) On overhead panel 25VU, make sure that EMER EXIT LT switch 4WL is in the OFF position.
   (2) On overhead panel 25VU, make sure that EXIT switch 190RH is in the OFF position.
   (3) On Flight Attendant Panel (FAP) 120RH, make sure that the EMER button and its light are off.
Subtask 33-51-00-860-087-F ** ON A/C NOT FOR ALL
A. Preparation for Test
   (1) On overhead panel 25VU, make sure that EMER EXIT LT switch 4WL is in the OFF position.
   (2) On overhead panel 25VU, make sure that No PED switch 190RH is in the OFF position.
   (3) On Flight Attendant Panel (FAP) 120RH, make sure that the EMER pushbutton switch and its integral light are off.
Subtask 33-51-00-710-084-A
B. Operational Check of the Emergency Lighting System
   (1) In the cabin, on FAP 120RH, push the EMER or the LIGHT EMER pushbutton-switch.
   (2) Make sure that all the emergency lights and signs come on.
NOTE: For the location of the emergency lights and signs, refer to DO 33-51-00-00.
   (3) If the emergency lights or signs do not come on, do the related troubleshooting procedure.
   (4) In the cabin, on FAP 120RH, push the EMER or the LIGHT EMER pushbutton-switch again.
   (5) Make sure that all the emergency lights and signs go off.
5. Close-up
Subtask 33-51-00-862-065-A
A. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 00:57:16 UTC