Doors
Passenger/Crew Door
The passenger/crew door is the primary means
of ingress and egress for the passengers and
the crew (Figure 1-10). The 30-inch-wide door
has a clamshell design, each half hinged to the
fuselage. The upper half also serves as an
emergency exit. The bottom half has two in-
tegral entrance steps and a lower flip down step
(Figure 1-11). The lower step must be folded
in when the lower door is closed.
The upper portion of the door has both outside
and inside locking handles which are fastened
to a common shaft through the door. Rotating
either of these handles to closed drives six
locking pins into the fuselage frame (three
pins forward and three aft) and two pins
through interlocking arms on the lower door
that secure the door halves together.
The upper entry door has a small vent door lo-
cated in the center of it. When the inside or out-
side upper door handle is rotated to the open
position the vent door cycles open and then
closed. Through the arrangement in the upper
door opening mechanism, the vent door opens
before the locking pins are retracted and then
closes again when the locking pins are fully
retracted.
The lower door has a single locking handle on
the inside of the door. Rotating the lower door
handle to the closed (forward) position drives
four pins into the fuselage frame (two for-
ward and two aft).
LEARJET 45 PILOT TRAINING MANUAL
1-10
FOR TRAINING PURPOSES ONLY
FlightSafety
international
Figure 1-10. Airplane Doors
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