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Training Information Point
See PASSENGER/CREW section in this chapter for more
information on the operation of the galley service door.
(SECTION 52-10)
DOORS - SERVICE - GALLEY SERVICE DOORS
EFFECTIVITY
GUN ALL 52-40-00
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DOORS - SERVICE - GALLEY SERVICE DOORS
DOORS - SERVICE - GALLEY SERVICE DOORS
EFFECTIVITY
GUN ALL 52-40-00
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
52-40-00-060
Purpose
The crew door separates the flight compartment from the
passenger compartment.
Location
The crew door is at the entrance to the flight compartment.
General Description
The crew door is not a pressure door. It swings open into the
passenger compartment. The door has a mechanical and an
electric lock.
The door has these components:
* Hinges
* Light seals
* Door handle with mechanical (key) lock
* Blowout panels
* Emergency exit panels
* View hole with lens
* Mirror
* Licence and certificate holder
* Door stop mechanisms.
The door is in a frame assembly. The door handle bolt engages
a frame strike assembly. The frame strike has an electric lock. A
lighted, alternate action push-button switch on the P8 panel
controls the electric lock.
Hinges and Light Seals
Hinges attach the door to the frame on the left side of the door.
Seals around the door decrease light and noise transmission.
Door Handle and Lock Mechanisms
The door handle turns to disengage the door bolt from the door
frame strike assembly. The door handle has a mechanical keytype
lock.
When you lock the handle, it does not turn from the passenger
side of the door. However, if the electric lock is not energized,
the door frame strike assembly moves and lets you open the
door with moderate force (10 pounds nominal).
If the electric lock is energized, the strike mechanism does not
move and the door does not open easily from the passenger
compartment. To open the door from the passenger
compartment when the mechanical and electric locks are
active, you must pull on the door with enough force to shear the
strike lock mechanism (250 pounds nominal).
DOORS - CONTROL CABIN DOOR - INTRODUCTION
EFFECTIVITY
GUN 201-999 52-51-00
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52-51-00-001
Blowout Panels and Emergency Exit Panels
There are four blowout panels on the control cabin door. If there
is a rapid depressurization, the blowout panels open into the
control cabin. This equalizes the pressure between the flight
compartment and the passenger compartment. Spring-loaded
latches hold the panels closed until a pressure difference forces
the panels open. The panels can blow open into the flight
compartment. A cable between the top blowout panel and the
door prevents injury to the first observer.
The upper two blowout panels are part of an emergency exit
panel assembly. When you pull on the emergency exit handle,
the upper two blowout panels come out of the door. This gives
the crew a means of emergency exit if the door is blocked or
jammed shut.
View Hole and Lens
The view hole and lens assembly in the door let the flight crew
see the flight compartment entrance area when the door is
closed.
Mirror and Certificate Holders
There is a mirror for flight crew use on the upper door.
Frames with a transparent windows for airplane licences and
certificates are on the upper door.
Door Stop
These are the two types of door stop mechanisms that hold the
door in the open position:
* Elastic bungee that snaps to the forward lavatory module
* Spring-loaded plunger with a padded foot and a release
lever on the bottom of the door.
DOORS - CONTROL CABIN DOOR - INTRODUCTION
EFFECTIVITY
GUN 201-999 52-51-00
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
52-51-00-001
DOORS - CONTROL CABIN DOOR - INTRODUCTION
DOORS - CONTROL CABIN DOOR - INTRODUCTION
EFFECTIVITY
GUN 201-999 52-51-00
Page 3
D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
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