(b)
Cracks, chips, delamination or an intermittent operation which cause the No. 2 window heat system to not operate.
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A 737-300/400/500MAINTENANCE MANUAL
1. (2 LOCATIONS)
SEE A
A
1. (2 LOCATIONS)
SEE B
B
DESIGN LIMITS WEAR LIMITS REWORK LIMITS
NO. INDEX DIM DIAMETER MAXMIN WEAR MAX DIM ANCE CLEAR-MAX DIAM NOYES PERMITTED OR PLATING BUSHING MTL BUILD-UP PLATING HOLE OR OVERSIZE MAX MAXMIN FERENCE INTER-BUSHING
1. I/D 0.500 0.501 0.531 0.05 REPLACE
Window No. 2 Mechanism Wear Limits
Figure 601
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A
737-300/400/500MAINTENANCE MANUAL
(c) Arcing, electrical discontinuity or cracks rendering main window heating system inoperative.
NOTE: Refer to the Boeing 737 MEL for control cabin window
____ heat dispatch requirments. Outer pane is not a structural member. No. 2 window replacement due to outer pane damage should be based upon window heat and visibility requirements and can be delayed to the nearest maintenance interval. Window heat leads should be disconnected and secured if replacement is delayed.
S 216-003-B00
(2) Examine the inner glass pane for these conditions:
(a)
Cracks
(b)
Scratches with a depth more than 0.015 inch
(c)
Concoidal chips, in one of the two surfaces, with a depth more than 0.015 inch
(d)
V-shaped chips
S 216-004-B00
(3) Examine the middle vinyl pane for the cracks.
NOTE:____It is permissible for No. 2 windows to have a crack in the forward upper corner extending up to 0.50 inches in length into the "daylight opening" (Fig. 602).
S 216-011-B00
(4) Examine the middle vinyl pane for crackling.
NOTE: Crackling is many cracks located one after the other in only
____ the urethane layer. These cracks occur at the window edge adjacent to the frame. It is also possible that when you look through the window it will have a slight yellow color in the area of the crackling. If crackling is contained in only the urethane interlayer, it is not necessary to replace the window. The urethane interlayers are not structural.
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A
737-300/400/500MAINTENANCE MANUAL
AIRPLANE MOUNTING
PLY
A-A (AIRPLANE WINDOW FRAME NOT SHOWN)
Window No. 2 Vinyl Interlayer Crack Limits Figure 602
G81169
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址:737-300 400 500 AMM 飞机维护手册 WINDOWS(47)