737 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-866-EGP 9.10.13
Leading Edge Devices
1 Leading Edge Devices (LE DEVICES) Annunciator Panel
Indicates position of individual LE flaps and slats.
Extinguished – related LE device retracted.
2 Leading Edge Devices TRANSIT Lights
Illuminated (amber) – related LE device in transit.
3 Leading Edge Devices Extended (EXT) Lights
Illuminated (green) – related LE slat in extended (intermediate) position.
4 Leading Edge Devices Full Extended (FULL EXT) Lights
Illuminated (green) – related LE device fully extended.
5 Leading Edge Annunciator Panel TEST Switch
Press – tests all annunciator panel lights.
6 Leading Edge Flaps Transit (LE FLAPS TRANSIT) Light
Illuminated (amber) –
• any LE device in transit
• any LE device not in programmed position with respect to TE flaps
• a LE uncommanded motion condition exists (two or more LE flaps or
slats have moved away from their commanded position)
• during alternate flap extension until LE devices are fully extended and
TE flaps reach flaps 15.
Note: Light is inhibited during autoslat operation in flight.
LE DEVICES
6
5
4
3
2
1
TRANSIT
FULL EXT
EXT
FLAPS
TEST
2
SLATS
3
1
SLATS
4
7
8
EXT
LE FLAPS
TRANSIT
LE FLAPS
AFT OVERHEAD PANEL
1 5
CENTER FORWARD
PANEL
6
7
2
3
4
September 23, 2010
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