R 1EFF : 051-099, 1 33-51-39Page 406 1 1 May 01/05 1 1 1CES 1

 Power Supply Unit for the Emergency-Escape Path-Marking Lights R Figure 401B/TASK 33-51-39-991-001-A
R 1EFF : 151-158, 1 33-51-39Page 407 1 1 May 01/05 1 1 1CES 1

 (3)
 Remove the screws (2) the washers (3) and the power supply unit (4). FOR 110WL2

 (4)
 Remove the screws (2) and the washers (3) and the power supply unit

 (4) sufficiently to get access to the electrical connector (1).

 (5)
 Disconnect the electrical connector (1).

 (6)
 Put blanking caps on the electrical connectors.

R 1EFF : 001-049, 051-099, 101-105, 151-158, 1 33-51-39Page 408 1201-209, 1May 01/05 1 1 1CES 1

 TASK 33-51-39-400-001

 Installation of the Power Supply Unit for the Floor-Proximity Emergency-Escape Path-Marking Light
 1. Reason for the Job__________________
 Self Explanatory
 2. Job Set-up Information______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific  stepladder 1.5 m (4 ft. 11 in.)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
33-51-00-710-002  Operational Test of Emergency Escape-Path Marking-Lights 
R  **ON A/C 001-049, 101-105, 201-209,
 33-51-39-991-001  Fig. 401 
R  **ON A/C 051-099, 
R  33-51-39-991-001-B  Fig. 401A 
R  **ON A/C 151-158, 
R  33-51-39-991-001-A FOR FIN 110WL1 25-23-42-000-001 25-23-42-400-001 FOR FIN 110WL3  Fig. 401BRemoval of the Ceiling Panels - Forward Utility AreaInstallation of the Ceiling Panels - Forward Utility Area

R 1EFF : 001-049, 051-099, 101-105, 151-158, 1 33-51-39Page 409 1201-209, 1May 01/05 1 1 1CES 1 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------

25-23-45-000-004 Removal of the Door Frame Linings at the Right AFT Passenger/Crew Door 25-23-45-400-005 Installation of the Door Frame Linings at the Right
 AFT Passenger/Crew Door 25-26-41-000-003 Removal of the Aft Curtain Rail 25-26-41-400-003 Installation of the Aft Curtain Rail FOR FIN 110WL2 25-23-44-000-001 Removal of the Lower Sidewall-Panels (Dado Panels) 25-23-44-400-001 Installation of the Lower Sidewall-Panels (Dado
 Panels)

R **ON A/C 001-049, 051-099, 101-105, 151-158, 201-209,
 3. Job Set-up
__________
 Subtask 33-51-39-860-051
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the EMER EXIT LT switch 4WL on the overhead panel 25VU is in the OFF position.

 (2)
 Make sure that the LIGHT EMER pushbutton switch and its integral light on the forward attendant panel 120RH are off.

 Subtask 33-51-39-865-052
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU LIGHTING/EMER LT/CABIN 2WL H06 49VU LIGHTING/EMER LT/CABIN 1WL H05
R 1EFF : 001-049, 051-099, 101-105, 151-158, 1 33-51-39Page 410 1201-209, 1May 01/05 1 1 1CES 1

R **ON A/C 001-049, 051-099, 101-105, 201-209,

 Subtask 33-51-39-010-051-B
 C. Get Access
 (1)
 Make sure that the stepladder is in position:
 FOR 110WL1
 in Zone 221
 FOR 110WL3
 in Zone 262.

 (2)
 Make sure that the AFT curtain rail is removed to get access to the access panel 262VW (Ref. TASK 25-26-41-000-003): FOR 110WL3

 (3)
 Make sure that the access panel is removed:
 FOR 110WL1
 221BC (Ref. TASK 25-23-42-000-001),
 FOR 110WL2
 241AW (Ref. TASK 25-23-44-000-001),
 FOR 110WL3
 262VW (Ref. TASK 25-23-45-000-004).

 **ON A/C 151-158,
 Subtask 33-51-39-010-051-A
 C. Get Access
 (1)
 Make sure that the stepladder is in position:
 FOR 110WL1
 in Zone 221,
 FOR 110WL3
 in Zone 262.

 (2)
 Make sure that the AFT curtain rail is removed to get access to the access panel 262VW (Ref. TASK 25-26-41-000-003): FOR 110WL3
　
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