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locate and center the door within its belly fairing aperture.
AFT EQUIPMENT BAY DOOR OPERATION
DOOR OPENING - Door opening is accomplished by depressing the trigger and
pulling the handle to the full open position.
DOOR CLOSING - The door latch handle is flush fitting and is secured by an integral
push trigger which, when depressed, releases the handle to the free open position. The
door is secured by returning the handle flush with the door.
Visual indication of secure latching and locking is given by the door, the push trigger
and the external handle all being flush with the fuselage’s surface.
GX_01_039
Door Latch
Handle Assembly
Lanyard
Latch
Machanism
For Training Purposes Only
Sept 04
1-25
P I LOT T R A I N I N G GU I D E
AIRPLANE GENERAL
EMERGENCY EXIT
An overwing plug type emergency exit is installed on the right side of the airplane.
The exit is an inward opening plug type and can be unlatched from the interior or
exterior of the airplane. Emergency door operation from inside the cabin is achieved
by single action of the emergency exit operating handle.
Two lower hook fittings and two upper latch fittings position the door in the door
opening. Three stop fittings on each side of the door and surround structure react to the
pressurization forces of the plug door type.
GX_01_036
EMERGENCY
EXIT DOOR
G_ag036_A
Latch Fitting
Quick Release
Latch Mechanism
Hand Hold
Hook Fitting
Door Stop
Both Sides
GX_01_037
1-26 For Training Purposes Only
Sept 04
P I LOT T R A I N I N G GU I D E
AIRPLANE GENERAL
When the door is removed, handling is facilitated by an interior hand hold, housed
flush within the door box structure.
To unlatch the emergency exit door from the interior, the upper door handle is pulled
inward. This motion opens the exterior push plate/vent flap to bleed any residual
pressure, and disengages the two latch pins. The door moves inward and pivots on the
lower hook fittings. A grip of the upper handle is maintained while grasping the lower
hand grip and the door is lifted inwards away from the door opening.
To unlatch the emergency exit door from the exterior, the upper push plate/vent flap is
depressed to disengage the latch pins, and the door is pushed inwards away from the
opening.
Visual indication of a locked condition of the overwing emergency exit in position is
with the interior handle recessed in the surround structure.
DOOR INDICATION AND CONTROL
The airplane door position and locked indication is provided to the EICAS by the
Landing Gear Electronic Control Unit (LGECU). The LGECU provides data that is
used to generate alerts and synoptic displays for the fuselage doors.
Door position information is displayed on the STATUS page, and message information
is displayed on the EICAS page.
The STATUS page presents the following doors:
• PASSENGER
• EMERGENCY OVERWING EXIT
• BAGGAGE
• SERVICE DOORS
GX_01_038
PUSH IN FLAP
PUSH DOOR INWARD
For Training Purposes Only
Sept 04
1-27
P I LOT T R A I N I N G GU I D E
AIRPLANE GENERAL
STATUS PAGE
Passenger Door
The passenger door is monitored by three proximity sensors to determine the locked
and handle stowed position. They are located on the passenger door forward and aft
latch to monitor the “G” latch position and in the passenger door to monitor the outer
handle stowed condition.
The sensor information is used by the LGECU for door position and locked indication,
and sends the results to EICAS for position and locked displays.
Emergency Exit
One proximity sensor is installed at the top of the door position, and senses the door in
the closed position.
Baggage Door
Two proximity sensors monitor the door position and provide signals to the LGECU
which in turn provides the EICAS display.
GX_01_043
SERVICE DOORS
Overwing Emergency Exit
Baggage Door Passenger Door
SERVICE DOOR
Annunciation
AIRPLANE DOOR POSITION AIRPLANE DOOR GRAPHIC
CLOSED
OPEN
INVALID
1-28 For Training Purposes Only
Sept 04
P I LOT T R A I N I N G GU I D E
AIRPLANE GENERAL
Large Maintenance Doors
Two (optional third) separate large hinged and latched maintenance hatches are
monitored by the LGECU. Each door is monitored by one proximity sensor to
determine the door closed condition. In each case, the proximity sensor is mounted on
the airplane structure and monitors a sensor on the hatch. The information is used by
the LGECU for door position indication.
　
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