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AIRPLANE GENERAL
PASSENGER DOOR SCHEMATIC
CABLE ASSEMBLY
O P E N
HANDRAIL
ASSEMBLY
GF0110_030a
CLOSED POSITION
PASSENGER DOOR COMPONENTS
The following components are described to provide an understanding of the passenger door operating system.
Airstair and Handrails Assembly
The airstairs act as the steps for embarking/disembarking the airplane. They also act as support for the door structure, which hangs below the airstairs when open. The airstairs are hinged to the airplane via two hinges and two pins.
The handrails are attached to the fuselage and the airstairs. They support the weight of the door and airstair assembly and passenger loading. Handrails are capable of supporting the weight of the door and passenger loading.
The design of the door is such that there is no contact with the ground when the door is in the open position.
Volume 2 Flight Crew Operating Manual Rev 12, Aug 14, 2006
PASSENGER DOOR COMPONENTS (CONT'D) Lift arms
Two levers are connected from either end of the lockshaft to the fixed linked arms on the airstair structure. They are driven by the handles, assisted by the tension spring. Their purpose is to lift the door out of its frame and hold it up and out in relation to the airstair, while the door is opening.
“G” Locks
In the locked position, the “G” lock hooks hold the door relative to the airstairs and prevent any upward movement in the door frame during turbulence or negative “G” flight.
Vent Flap
A pressurization vent flap is centrally located at the top of the door under the lockshaft. The flap prevents pressure building up until the “G” locks engage. Once the locks are in and the flap is shut, the pressure holds the flap firmly shut. The vent flap is opened by the lockshaft mechanism as the “G” locks are disengaged, to release any residual pressure from the pressurization system.
VENT FLAP
LIFT ARM FORWARDAFT "G" "G" LOCKLOCK
O P E N
LOCKING HANDLE
Locked Indication
Visual indication of latching and locking is given by an indicator arm that is driven directly by the last motion of the internal handle. The internal handle cover provides an indication to the cabin crew by the red band indicators to the cover and the handle. The red band across the handle and cover clearly shows the handle in the locked position. A safe indication is indicated by the alignment of the two red lines.
GF0110_031a
Rev 12, Aug 14, 2006 Flight Crew Operating Manual Volume 2
AIRPLANE GENERAL
PASSENGER DOOR OPERATING HANDLES
The external handle is set into a box in the lower door structure. It is connected by push/pull rods inside the door to the lockshaft, at the forward end.
EXTERNAL HANDLE
LOCKSHAFT
NOTE
The door is not in the fully closed
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本文链接地址：庞巴迪环球5000公务机机组操作手册 Bombardier Global-空调和增压(21)
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