737 Flight Crew Operations Manual
Air Systems -
Controls and Indicators
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-866-EGP 2.10.9
YW273, YW274
1 AUTO FAIL Light
Illuminated (amber) – automatic pressurization system failure detected:
• indicates a single controller failure when ALTN light is also illuminated
• indicates a dual controller failure when illuminated alone.
2 OFF Schedule (SCHED) DESCENT Light
Illuminated (amber) – airplane descended before reaching the planned cruise
altitude set in the FLT ALT indicator.
E
V
L
A
V
MANUALAUTO
FLT ALT
ALTN
MAN
E
S
L
C
N
E
P
AUTO
O
O
LAND ALT
FL260 FL320 FL410
800060004000
FL220
LAND ALTCAB ALT
2000
<FL160
AUTO
FAIL
OFF SCHED
DESCENT
ALTN MANUAL
FLT ALT
FORWARD OVERHEAD PANEL
1
2
3
4
5
6
12
11
10
9
8
7
September 15, 2016
To Next Page
Loading...
