Boeing 737-800 - Bleed Air System Schematic

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.
D6-27370-866-EGP 2.20.3
Bleed Air System Schematic
OFF
ON
1
OFF
HIGH
PACK
WING-BODY
OVERHEAT
ON
2
BLEED
TRIP OFF
R RECIRC FAN
OVHT
OFF
VALVE
CLOSE
AUTO
OPEN
OFF
AUTO
WING
ANTI
ICE
TEST
TRIP
BLEED
ISOLATION
L PACK
RESET
R PACK
APU
AUTO
OFF
WING
ANTI
ICE
AUTO
HIGH
40
60
80
20
0
DUCT
PRESS
PSI
L
R
PACK
WING-BODY
OVERHEAT
BLEED
TRIP OFF
COWL
VALVE
HIGH STAGE
5th
STAGE
9th
STAGE
STARTER
VALVE
STARTER
ENGINE
VALVE
APU BLEED
FROM
RIGHT
ENGINE
ISOLATION
VALVE
TO HYD
RESV
CONNECTION
WATER
TANK
TO
WING
DUCT PRESSURE
TRANSMITTER
TO
PACK
VALVE
CONDITION:
ENGINES OPERATING
& SUPPLYING AIR
CONDITIONING PACKS
BLEED AIR
AIR VALVE
BLEED
AIR DUCT
EXTERNAL
AIR
APU
BLEED AIR
TAI
BLEED
TRIP
SENSORS
TAI
S
AUTO
OFF
L RECIRC FAN
TO ASPIRATED
TAT PROBE
September 28, 2006