R Subtask 33-51-12-860-051
R B. Aircraft Maintenance Configuration
R (1) Make sure that the EMER EXIT LT switch 4WL on the overhead panel 25VU
R is in the OFF position.
R (2) Make sure that the LIGHT EMER pushbutton switch and its integral
R light on the forward attendant panel 120RH are off.
R 4. Procedure_________
R (Ref. Fig. 402/TASK 33-51-12-991-003)
R Subtask 33-51-12-020-053
R A. Removal of the Marking Light of the Floor-Proximity Emergency-Escape Path
R (1) Removal of the Light Module
R (a) Release the attachment clip (5) and lift the module housing (6)
R from the top track (4).
R (b) Hold the module housing (6) and pull the lampholder (3) out of
R the module housing (6).
R (c) Remove the module housing (6).
R (2) Removal of the Bulb of the Light Module
R (a) Release the attachment clip (5) and lift the module housing (6)
R from the top track (4).
R (b) Hold the module housing (6) and pull the lampholder (3) out of
R the module housing (6).
R (c) Remove the module housing (6).
R (d) Remove the bulb (1).
R Floor-Proximity Emergency-Escape Path-Marking Light R Figure 402/TASK 33-51-12-991-003
1EFF : 051-099, 1 33-51-12Page 414 1 1 May 01/05 1 1 1CES 1
R TASK 33-51-12-400-002
R Installation of the Marking Light of the Floor-Proximity Emergency-Escape Path
R (BRUCE)
R WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE_______
R YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
R 1. Reason for the Job__________________
R Self Explanatory
R 2. Job Set-up Information______________________
R A. Fixtures, Tools, Test and Support Equipment
R -------------------------------------------------------------------------------
R REFERENCE QTY DESIGNATION
R -------------------------------------------------------------------------------
R No specific lint free cloth
R B. Referenced Information
R -------------------------------------------------------------------------------
R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R 33-51-00-710-002 Operational Test of Emergency Escape-Path
R Marking-Lights
R 33-51-12-991-003 Fig. 402
R 3. Job Set-up__________
R Subtask 33-51-12-860-055
R A. Aircraft Maintenance Configuration
R (1) Make sure that the EMER EXIT LT switch 4WL on the overhead panel 25VU
R is in the OFF position.
R (2) Make sure that the LIGHT EMER pushbutton switch and its integral
R light on the forward attendant panel 120RH are off.
R Subtask 33-51-12-865-055
R B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and
R tagged
R -------------------------------------------------------------------------------
R PANEL DESIGNATION IDENT. LOCATION
R -------------------------------------------------------------------------------
R 49VU LIGHTING/EMER LT/CABIN 2WL H06
R 49VU LIGHTING/EMER LT/CABIN 1WL H05
R 4. Procedure_________
R (Ref. Fig. 402/TASK 33-51-12-991-003)
R Subtask 33-51-12-910-051
R A. Preparation for Installation
R (1) Make sure that the parts retained from the removed component are
R clean and in the correct condition.
R (2) Clean the component interface and/or the adjacent area with a lint
R free cloth.
R (3) Do an inspection of the component interface and/or the adjacent area.
R Subtask 33-51-12-420-054
R B. Installation of the Marking Light of the Floor-Proximity Emergency-Escape
R Path
R (1) Installation of the Light Module
R (a) Push the lampholder (3) into the module housing (6).
R (b) Install the module housing (6) in the top track (4).
R Make sure that you hear a click when the module housing (6) locks
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