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56-12-11
ALL ú ú B01 Page 802 ú Feb 20/84
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 418-004-B00
(3) Close the window.
TASK 56-12-11-308-008-B00
3. Repair the Window No. 2 (Pilots' Sliding Window) Bearing (Fig. 802)________________________________________________________
A. References
(1) 56-12-11/401, Window No. 2 (Pilots Sliding Window)
B. Access
(1) Location Zones
101, 102 Control Cabin
C. Window No. 2 (Pilots' Sliding Widnow) Bearing Repair
S 018-005-B00
(1)
Remove the window No. 2 (Ref 56-12-11/401).
S 968-006-B00
(2)
Replace the bearing:
(a)
Loosen the setscrew in the bellcrank.
(b)
Remove the special bolt from the bellcrank.
NOTE:____Parts can fall when you remove the screw. Be prepared to catch them.
Window No. 2 (Pilots' Sliding Window) Bearing Installation
Figure 802
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
56-12-11
ALL ú ú B01 Page 803 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
(c) Install the special bolt with the bearing, the shim washers, and the new glide track bearing.
NOTE: Change the number of shim washers to give the correct
____ vertical window adjustment if it is necessary.
S 418-007-B00
(3) Install the window No. 2 (Ref 56-12-11/401).
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56-12-11
ALL ú ú B01 Page 804 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
PASSENGER CABIN WINDOWS - DESCRIPTION AND OPERATION
___________________________________________________
1. General_______
A. Passenger cabin windows are located between the fuselage frames in those areas of the cabin where passenger seating is provided. The passenger cabin windows consist of outer and middle structural panes (Fig. 1). The innermost pane is nonstructural and is mounted in the cabin sidewall lining (AMM 25-21-46/401, Sidewall Lining). The outer and middle structural panes are each capable of taking the full cabin pressurization load. Fail-safe structure is ensured by the middle pane which is designed for 1.5 times the normal operating pressure at 70 degrees Fahrenheit. The outer pane is made of stretched acrylic for increased strength. The middle pane is made of a cast acrylic. The inner non-structural pane in the sidewall lining is made from polycarbonate.
B. The windows are designed as plug type windows subject only to the pressure acting on them. The outer pane of stretched acrylic plastic is rectangular in shape with rounded corners and a beveled outer edge to fit the window frame. The pane is curved to fair with the fuselage contour. The middle pane made of modified acrylic plastic sheet is similarly shaped like the outer pane, but with an unbeveled edge. The middle pane is contained in the window seal. A small breather hole is located near the bottom of the middle pane. The window seal is a molded ethylene propylene seal with six alignment tabs, staggered beads, and an integral masking feature which is removed following installation. Bonding is not required on installation of the seal.
C. Windows are designed to preclude fogging and frosting by means of multiple pane construction with interveining cavities essentially isolated from cabin interior air conditions.
D. A passenger cabin window plate (plug) may be installed in place of the outer and middle panes in those areas of the passenger cabin where seating is not provided.
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