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GUN 101-118 35-10-00
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D633A101-GUN Oct 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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OXYGEN - CREW - PRESSURE INDICATION - FUNCTIONAL DESCRIPTION
35-10-00
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D633A101-GUN Oct 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
Purpose
If the discharge indication disk is missing, this shows the
oxygen cylinder has discharged due to over pressure.
Physical Description
The discharge indication disk is a green plastic disk. It is held in
place by a snap-ring.
Location
The discharge indication disk is flush-mounted to the fuselage
skin, just aft of the electronic equipment compartment external
access door.
Functional Description
A frangible disk in the crew oxygen cylinder assembly protects
the cylinder from overpressure. If cylinder pressure gets to 2600
psig the frangible disk breaks. This vents the bottle contents
overboard through a high pressure line. The discharge
indication disk covers the line outlet. The released oxygen
blows the disk out of its seat.
A missing disk shows that the bottle had an over pressure
discharge.
Operation Displays
Removed TRANING INFORMATIOM POINT.
Preflight visual checks make sure the green flight crew oxygen
discharge indication disk is in place.
OXYGEN - CREW - DISCHARGE INDICATION DISK
EFFECTIVITY
GUN ALL 35-10-00
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D633A101-GUN Oct 10/2006
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OXYGEN - CREW - DISCHARGE INDICATION DISK
OXYGEN - CREW - DISCHARGE INDICATION DISK
EFFECTIVITY
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D633A101-GUN Oct 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
35-10-00-205
Purpose
The flight crew oxygen masks supply each crew member with
an independently adjustable source of oxygen.
Physical Description
The flight crew oxygen masks are identical modular units. The
masks have these components:
* A hard-shell oronasal (mouth and nose) cup
* An inflatable harness
* An armored flexible oxygen supply hose with a bayonet
connection
GUN 201-999
* Goggles
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* A microphone lead with a radio jack connection.
The pilot oxygen masks are held in stowage boxes. The boxes
have these features:
* An automatic shutoff valve
* An oxygen flow indication blinker (yellow cross)
* A RESET/TEST lever.
The observer oxygen masks are held in stowage cups. The
stowage cups do not have the features of the stowage boxes.
Location
The flight crew oxygen masks are outboard of the crew seats.
Operational Controls
The flight crew oxygen masks have these control features:
* Dilution or 100% oxygen supply
* Test knob
* Demand or constant flow oxygen supply
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* A goggle vent valve (smoke clearance)
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* Mask harness inflation.
The mask stowage boxes have these control features:
* Box shutoff valve test
* Box reset for mask stowage operations.
Operational Displays
A flow indication blinker on the stowage box shows oxygen flow
to the mask. A yellow cross indicates oxygen flow.
A white OXY ON flag on the box door shows when the stowage
box shutoff valve is open when the box is closed.
OXYGEN - CREW - ORONASAL MASK
EFFECTIVITY
GUN ALL 35-10-00
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D633A101-GUN Oct 10/2006
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
35-10-00-210
OXYGEN - CREW - ORONASAL MASK
OXYGEN - CREW - ORONASAL MASK
EFFECTIVITY
GUN 001-099, 101-118 35-10-00
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D633A101-GUN Oct 10/2006
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
35-10-00-210
OXYGEN - CREW - ORONASAL MASK
OXYGEN - CREW - ORONASAL MASK
EFFECTIVITY
GUN 201-999 35-10-00
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
35-10-00-210
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OXYGEN - CREW - ORONASAL MASK
35-10-00
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