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The door is opened from the inside by lifting the INNER HANDLE, which releases
the EXTERNAL HANDLE from its recess. The continued upward travel of the
INNER HANDLE unlatches the door-locking mechanism. As the door opens, the
handrails unfold upward. A PULL-UP ASSIST HANDLE is attached to the rear of the
door to assist in controlling the fall of the door as it opens.
The door is opened from outside by pressing the TRIGGER PLATE on the
EXTERNAL HANDLE, which releases the handle from its recess. Rotating the
EXTERNAL HANDLE counterclockwise unlatches the door.
A hinged pressurization flap is installed in the door to release excess cabin pressure
before the door locks are released. When the door is fully opened, a support leg
extends to the ground to stabilize the door. The EXTERNAL HANDLE incorporates a
keylock mechanism.
AIRPLANE GENERAL
For Training Purposes Only
May 03
1-9
P I LOT T R A I N I N G GU I D E
.
Passenger Door
Figure 1-3
Upper
Latch
Spigots
Door Pull-Up Assist Handle
Handrails
Door Pull-in Grip
Support Leg
Rubber
Seal
Outer
Handle
Trigger
Plate
Cabin
Door
Switch
PUSH CLOSED
OPEN
EXTERNAL HANDLE
T-Handle
Hinged
Pressurization
Flap
Handle
Keylock
Viewing
Window
P604_01_003
Door (2)
Inner
Handle
Center
Latch Cam
Upper
Latch Cams
AIRPLANE GENERAL
1-10 For Training Purposes Only
May 03
P I LOT T R A I N I N G GU I D E
Cargo/Baggage Door
The cargo/baggage compartment door is located on the left side of the airplane
immediately behind the passenger compartment.
Cargo/Baggage Door Operation
The door may be opened from inside or outside. The door opens inward and upward
on two tracks attached to the structure. Balance springs and cables are attached to
assist in opening. The door is held closed by two plungers which are operated by an
external HANDLE. Two plunger-activated proximity switches provide an indication in
the flight compartment if the door is not properly closed. The external handle provides
a keyed security lock. This handle is kept flush with the door by a catch which
operates automatically when the handle is aligned with its recess and pushed in.
To open the door from the inside, rotate the inner handle clockwise and lift the door
upward. To close the door from the inside, position the door in place and rotate the
handle counterclockwise to lock the door in position, then pull the knob inwards to
stow the external handle.
To open the door from the outside, push in the handle unstow button. This will unstow
the handle which can be rotated counterclockwise to unlock the door. Push the door
upward to open. To close the door, position the door in its opening and rotate the
handle clockwise to align with its recess. Push the handle into its recess to complete
the process.
AIRPLANE GENERAL
For Training Purposes Only
May 03
1-11
P I LOT T R A I N I N G GU I D E
.
Cargo/Baggage Door
Figure 1-4
Handle
Handle Unstow
Button
Handle
Keylock
Balance-Spring Boxes
Retention
Clip
Plunger
Inner
Handle
Guide
Tracks
Fitting
(Door-Locking
Plunger
Receptacle)
P604_01_004
AIRPLANE GENERAL
1-12 For Training Purposes Only
May 03
P I LOT T R A I N I N G GU I D E
Aft Equipment Bay Door
The aft equipment bay can be accessed via a downward-opening door on the underside
of the rear fuselage.
Aft Equipment Bay Door Operation
The aft equipment bay door is opened from outside by pressing in a latching button on
the external handle. This releases the external handle from its recess. Rotating the
external handle clockwise unlatches the door, allowing it to fall open.
In order to close the door, it must be raised into the closed position and the handle
rotated counterclockwise to align with its recess. The handle is then pushed upward
into its recess until it clicks into place. The external handle incorporates a keylock
mechanism.
AIRPLANE GENERAL
For Training Purposes Only
May 03
1-13
P I LOT T R A I N I N G GU I D E
.
Aft Equipment Bay Door
Figure 1-5
Push-
Plate
Trigger
Keylock
Ventilation
Louvers
Exterior Handle
and Proximity Sensor
(Fully Stowed and Locked)
NO STEP
Latch Plate
and Proximity
Sensor
(Fully Latched)
Quick-
Release Pin
Latch
Pin
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
CL_604-AIRPLANE_GENERAL(4)
