737 Flight Crew Operations Manual
Airplane General, Emergency
Equipment, Doors, Windows -
Controls and Indicators
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-866-EGP 1.30.19
3 Oxygen Mask Release Lever
Squeeze and pull up –
• releases mask from stowage box
• releases OXY ON flag when stowage box doors open
• activates oxygen and microphone
• inflates mask harness when inflation lever is squeezed
• flow indicator shows a yellow cross momentarily as harness inflates.
Oxygen Mask and Regulator
1 NORMAL/100% Switch
N (normal) – supplies air/oxygen mixture on demand (ratio depends on cabin
altitude).
100% – supplies 100% oxygen on demand.
2 Oxygen Mask Release Lever
Squeeze and Pull –
• inflates mask harness when lever is squeezed
• flow indicator shows a colored cross momentarily as harness inflates
• enables the mask microphone when the left oxygen mask panel door is
opened
• disables the boom microphone.
EMERGENCY
PRESS
TO
TEST
N
100%
PUSH
HARNESS
MASK
MICROPHONE
REGULATOR
(shown inflated)
CREWMEMBER STATION
1
GOGGLES
3
2
September 15, 2016
To Next Page
Loading...
