Boeing 737-800 - Wing-Body Overheat; Wing-Body Overheat Ducts and Lights

737 Flight Crew Operations Manual
Air Systems -
Bleed Air System Description
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
2.20.4 D6-27370-866-EGP
Wing-Body Overheat
A wing-body overheat condition is caused by a bleed air duct leak. It is sensed by
the overheat sensors located as shown.
Wing-Body Overheat Ducts and Lights
LEFT LIGHT
SENSORS LOCATED:
BLEED DUCT FROM APU.
LEFT-HAND AIR
CONDITIONING BAY.
LEFT ENGINE STRUT.
KEEL BEAM.
1
2
3
4
5
SENSORS LOCATED:
RIGHT LIGHT
RIGHT ENGINE STRUT.
RIGHT INBOARD WING
LEADING EDGE.
RIGHT-HAND AIR
CONDITIONING BAY.
6
7
8
WING-BODY
OVERHEAT
LEFT INBOARD WING
LEADING EDGE.
FORWARD OVERHEAD PANEL
1
6
7
8
5
4
3
2
OFF
ON
1
OFF
HIGH
PACK
WING-BODY
OVERHEAT
ON
2
BLEED
TRIP OFF
OFF
AUTO
OPEN
OFF
AUTO
WING
ANTI
ICE
TRIP
BLEED
L PACK
RESET
R PACK
APU
WING
ANTI
ICE
AUTO
HIGH
PACK
WING-BODY
OVERHEAT
BLEED
TRIP OFF
VALVE
CLOSE
ISOLATION
WING-BODY
OVERHEAT
September 24, 2007