(3)
Connect the electrical connectors (5).
(4)
Install the emergency exit sign (1) with the washers (4) and the screws (3) on the fuselage structure.
(5) Install the emergency exit sign-lens (2).
**ON A/C 301-399,
Subtask 33-51-16-420-050-A
B. Installation of the Emergency Exit Sign
(1)
Remove the blanking caps from the electrical connectors.
(2)
Make sure that the electrical connectors are clean and in the correct condition.
(3)
Connect the electrical connectors (5), (10).
R (4) Put the housings (4), (9) in position.
R (5) Install the screws (2), (7) and the washers (3), (8).
R (6) Install the lenses (1), (6).
R **ON A/C ALL
Subtask 33-51-16-865-053
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1WL, 2WL
Subtask 33-51-16-860-051
D. Preparation for the Test
WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED_______ BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
(1) Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(2) On the overhead panel 25VU, make sure that the NO SMOKING switch 190RH is in the OFF position.
(3) On the overhead panel 25VU, make sure that the EMER EXIT LT OFF annunciator light 5WL is on.
Subtask 33-51-16-710-051
E. Do this operational test
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
On the overhead panel 25VU: On the related emergency exit sign:
- set the EMER EXIT LT switch 4WL to the ON position. - the related emergency exit sign comeson. On the overhead panel 25VU: - the EMER EXIT LT OFF annunciator light 5WL goes off.
-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------On the overhead panel 25VU: On the related emergency exit sign:
-set the EMER EXIT LT switch 4WL to - the related emergency exit sign goes
the OFF position. off.
On overhead panel 25VU:
-the EMER EXIT LT OFF annunciator light 5WL comes on.
5. Close-up
________
Subtask 33-51-16-860-052
A. Put the aircraft back to the serviceable condition.
(1)
Make sure that the work area is clean and clear of tools and other items.
(2)
Remove the stepladder.
(3)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
SIGN - EMERGENCY EXIT LOCATION (50WL,51WL,52WL,53WL) - REMOVAL/INSTALLATION
___________________________________________________________________________ TASK 33-51-17-000-001 Removal of the Emergency Exit Location-Sign WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______
YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
NOTE : The procedure is the same for all emergency exit location-signs.
____
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
No specific circuit breaker(s) safety clip(s)
No specific stepladder 1.0 m (3 ft. 3 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
**ON A/C 001-049, 051-099, 101-149, 201-299,
33-51-17-991-001 Fig. 401 R **ON A/C 151-199, 401-499,
33-51-17-991-001-A Fig. 401A -------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
**ON A/C 301-399,
33-51-17-991-001-B Fig. 401B
**ON A/C ALL
3. Job Set-up
__________
Subtask 33-51-17-865-050
A. Open, safety and tag this(these) circuit breaker(s): 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM LIGHTS 灯光2(148)
