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180 degrees in the clockwise direction.
Initial movement of the handle causes the door interior
mechanisms to do these things:
* Door latch roller mechanisms disengage from their door
frame latch track fittings
* Door warning sensor target moves away from the sensor.
This causes the FWD ENTRY or AFT ENTRY door warning
light on P5 forward overhead panel to come on
* Upper and lower door gates fold inward. This makes the
door smaller, breaks the door seal, and vents any cabin
differential pressure.
As the handle moves through the full motion (180 degrees), the
door mechanisms do these things:
* Cocking mechanism moves the door hinge arms (and the
door) inward
* Upper hinge guide arm controls the door rotation as it
swings
* Door goes to the cocked open position.
Any more effort on the door control handle does not cause more
door motion. The door control handle has gone through the full
motion. Release the control handle and let it return to its recess
by spring force.
To complete the door open operation, hold the aft edge of the
door, and pull it open.
DOORS - PASSENGER/CREW - EXTERIOR OPERATION
EFFECTIVITY
GUN ALL 52-10-00
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D633A101-GUN Oct 10/2005
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
52-10-00-011
As the door opens, winds may push it. This can push the
operator off balance. Keep a strong, secure stance to prevent
this.
As you pull the door open, the door turns. This puts the door
parallel to the airplane fuselage when the door is fully open.
At the fully open position, these things happen:
* Snubber and stop mechanisms gently stop the door at the
fully open position.
* Latch mechanism in the upper hinge engages. This locks the
hinge (and the door) in the fully open position.
Closing the Door
Before you close the door, examine the escape slide. The
escape slide girt strap and bar must be properly stowed. An
incorrectly folded strap or improperly stowed bar interferes with
the door to threshold clearance. This can prevent door sealing
and latching and can damage components.
To close the door, first release the hinge lock. The release
mechanism is yellow. Operate the latch release mechanism to
unlock the hinge. This lets the door swing back into the door
frame.
Pull the door to the cocked position.
Pull the exterior control handle out of the recess, and turn it
slightly until it engages the door drive mechanisms. Then turn
the door control handle counterclockwise 180 degrees.
Initial movement of the handle causes internal door
mechanisms to seat the door into the door frame.
As the handle continues to turn, the door mechanisms do these
things:
* Door latch roller mechanisms engage the door latch track
fittings
* Door latches push the door warning sensor target toward the
sensor. This causes the FWD ENTRY or AFT ENTRY door
warning light on P5 forward overhead panel go off
* Door seals compress between the door and the door frame.
* Upper and lower door gates unfold outward. This
compresses the gate seals, and returns the door to a
structural plug configuration.
When the control handle has gone through its full motion,
release it and allow it to return to the recess by spring force.
Training Information Point
You can operate the forward entry door in winds up to 40 knots.
You can let the door stay latched open in winds up to 65 knots.
WARNING: DO NOT OPERATE DOORS IN JET BLAST OR HIGH
WINDS. DAMAGE TO EQUIPMENT OR INJURY TO
PERSONS CAN RESULT.
DOORS - PASSENGER/CREW - EXTERIOR OPERATION
EFFECTIVITY
GUN ALL 52-10-00
Page 35
D633A101-GUN Oct 10/2005
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
52-10-00-011
The force on the control handle to open and close the door is
not large. If a large force is necessary, there is a fault with the
door or the procedure.
If the door does not close and latch easily, there may be a
clearance problem. Make sure the door-to-frame area is clear.
An incorrectly stowed escape slide girt strap may be caught
between the door and the frame.
If the airplane is pressurized, a properly rigged door will not
unlatch. This is because the door gates must open against
cabin pressure during door unlatch. Pressure on the door gates
has a mechanical advantage and prevents this.
DOORS - PASSENGER/CREW - EXTERIOR OPERATION
EFFECTIVITY
GUN ALL 52-10-00
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