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R R (a) If necessary do a repair of the sealing (Ref. TASK 51-76-11-300-001). 
5. Close-up________
 Subtask 25-40-00-410-051
 A. Close Access
 (1) For the FWD lavatory.
 (a) Install the cover on the wall fitting on the lavatory passage wall. 
R R  (b) Install the emergency equipment in the stowage of the cabin attendant seat (CAS). 
R R  (c) Make sure that the work area is clean and clear of tool(s) and other items. 
R R  (d) Close the flap of the CAS stowage. 
R  (e) Close the oxygen service panel in the lavatory (Ref. TASK 35-21-41-400-001). 
R  (f) Install the door-frame lining panel 221EW (Ref. TASK 25-23-45-400-006).
 (2) Install the ceiling panel 221AC (Ref. TASK 25-23-42-400-001).
 **ON A/C 301-399,
 Subtask 25-40-00-410-054
 B. Close Access
 (1) For the MID lavatory.
 (a) Install the access flap on the lavatory rearwall.
 (b) Install the covers on the lower attachment points.

 EFF : ALL
25-40-00Page 608
Feb 01/05

 **ON A/C ALL
 Subtask 25-40-00-410-052
 C. Close Access
 (1) For the AFT lavatories.
 (a) Install the ceiling panels 261CC, 261BC (Ref. TASK 25-23-42-400-
002). 
R 
R  (b) Install the emergency equipment in the stowage of the cabin 
R  attendant seat (CAS). 
R  (c) Make sure that the work area is clean and clear of tool(s) and 
R  other items. 
R  (d) Close the flap of the CAS stowage. 
R  (e) Install the covers on the lower attachment points. 
R  Subtask 25-40-00-862-055 
R  D. De-energize the ground service network 
R  (Ref. TASK 24-42-00-862-001).

 EFF : ALL
25-40-00Page 609
Feb 01/05

 FORWARD LAVATORIES - DESCRIPTION AND OPERATION______________________________________________
 1. General_______ 
R 
R  The forward lavatories are installed in the FWD utility area.
 2. Component Location__________________
 **ON A/C 001-049, 051-099, 101-105,
 (Ref. Fig. 001) 
R  **ON A/C 106-149, 151-199, 201-299, 301-399, 401-499,
 (Ref. Fig. 001A)
 **ON A/C ALL
 3. System Description__________________ 
R
 (Ref. Fig. 002) 
R 
R  A. General Characteristics 
R  The lavatories are installed as set or movable units. The set lavatories 
R  are hard point mounted in the floor structure. The movable lavatories are 
R  attached to the seat rails in the variable installation areas at 1 inch 
R  intervals. A tie-rod attaches the upper attachment point of the lavatory 
R  to the aircraft structure. Each lavatory has a single blade door or as an 
R  option, a bi-folding door can be installed on specific lavatories. 
R  B. Structure 
R  The lavatory is assembled as a modular unit, with a ceiling, sidewalls, 
R  rearwall and floorpan. The basic structure is made from sandwich panels. 
R  Extrusions are bonded and/or attached with screws to the panels. 
R  Kickstrips and corner strips are installed to prevent damage to the 
R  lavatory. 
R  C. Lavatory Equipment 
R  Different items of equipment are installed in each lavatory for the 
R  comfort of the passengers and crew (Ref. 25-45-00).

 EFF : ALL
25-41-00Page 1
Aug 01/05

 Lavatory Locations Figure 001 
R  EFF :  001-049, 051-099, 101-105,  25-41-00 Page 2 May 01/05
 CES 

 

 Lavatory Locations Figure 001A 
R  EFF : 106-149, 151-199, 201-299, 301-399, 401-499,  25-41-00 Page 3 Aug 01/05
 CES 

 

 Lavatory Installation - Example Figure 002
R  EFF : CES  ALL  25-41-00 Page 4 Feb 01/99 

 

 D. Lavatory Doors
 (1) Single Blade Door A single blade door that opens out is installed on the lavatory unit. Lavatories installed near an exit will have the lavatory door installed so it will not hinder evacuation of the passengers. To let the door open without blockage, a minimum clearance of 21 in. (0.53 m) is required.
 (2) Bi-folding Door A bi-folding door that opens in and closes automatically can be installed on specific lavatories, as an option. 
R R (3) For details of the door(s) (Ref. 25-45-00). 
　
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