G. Install Panel No. 10
(1)
Attach panel No. 10 hinges to support structure and hinge up panel.
(2)
Install fasteners at inboard edge of panel.
(3)
Install plug buttons in panel No. 10 to conceal fasteners.
H. Install Panel No. 9
(1) Place panel in position and install fasteners through support brackets at each corner of panel.
I. Install Panel No. 1 or 2
(1)
Attach lowered ceiling panel to hinges.
(2)
Hinge lowered ceiling panel up and secure by engaging the two latches.
577
Nov 15/78 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 25-21-361 Page 405
Aft Lowered Ceiling Installation 580
25-21-361 Figure 401 (Sheet 1) May 15/79
Page 406
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
504 Aft Lowered Ceiling Installation
Aug 15/78 Figure 401 (Sheet 2) 25-21-361
Page 407
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Aft Lowered Ceiling Installation 517
25-21-361 Figure 401 (Sheet 3) Nov 01/75
Page 408
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
517 Aft Lowered Ceiling Installation
Nov 01/75 Figure 401 (Sheet 4) 25-21-361
Page 409
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Aft Lowered Ceiling Installation 565
25-21-361 Figure 401 (Sheet 5) Nov 15/77
Page 410
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
AFT LOWERED CEILING PANELS – REMOVAL/INSTALLATION
EFFECTIVITY
Passenger/Cargo Convertible Airplanes with Wide-Body Look Interior
1. General
A. The aft lowered ceiling comprises individual panels as described in this section. The panels are arbitrarily numbered, as shown in Fig. 401, to assist in identification within this section only.
B. The procedure which follows describes the operations necessary to remove the entire lowered ceiling. If desired, any one lowered ceiling panel can be removed after opening appropriate panels for access to panel attachments. In some cases adjacent lowered ceiling panels will need to be removed to allow removal of the desired panel.
C. Depending upon the passenger cabin arrangement, certain items of passenger equipment are installed under the lowered ceiling and will obstruct removal of some lowered ceiling panels.
2. Remove Aft Lowered Ceiling Panels (Fig 401)
A. Remove Panel No. 1 or 2
(1)
Open lowered ceiling panel by releasing the two latches.
(2)
Detach lowered ceiling panel from hinges.
NOTE: All remaining equipment and fasteners in the lowered ceiling are accessible through the access door openings.
B. Remove Panel No. 9
(1)
Support panel and remove fasteners attaching panel to support brackets at each corner of panel.
(2)
Lower and remove panel No. 9.
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C. Remove Panel No. 10
(1)
Remove curtain and curtain track from panel No. 10 and panel No. 3.
(2)
Remove fasteners at right edge of panel No. 10.
(3)
Hinge panel No. 10 down and detach hinges from support structure.
D. Remove Panel No. 5 or No. 6
(1)
Remove aft left windscreen to allow removal of panel No. 5 (Ref 25-24-133).
(2)
Remove aft right windscreen to allow removal of panel No. 6 (Ref 25-24-141).
(3)
Lower passenger service unit and remove overhead stowage compartment as required to gain access to outboard attachment of panel No. 5 (Ref 25-23-311, Passenger Service Unit - Maintenance Practices and 25-24-311, Overhead Stowage Compartment -Removal/Installation).
(4)
At outboard edge of panel, remove fastener attaching angle on panel to bracket on structure.
(5)
Support panel and remove fasteners at inboard and aft edges of panel being removed.
(6)
At outboard side of panel, remove two screws attaching panel to bracket on overhead support structure.
(7)
Lower and remove panel.
E. Remove Lowered Ceiling End Cap
(1)
Lower curved ceiling panels installed adjacent to lowered ceiling end cap (Ref 25-21-341, Curved Ceiling Panel - Maintenance Practices).
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