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There are a total of 12 locking pins on the two
door sections. When the door handles are in
the closed position, each pin makes contact
with a microswitch. If any of the switches are
not tripped when the door handles are closed
warning and advisory messages remain illu-
minated to alert the crew (Figure 1-12).
A red “ENTRY DOOR” warning light on the
CWP (crew warning panel) and a red “ENTRY
DOOR” message on the CAS (engine instru-
ment/crew alerting system) illuminates when-
ever any of the 12 pins on the entry door are
not in the closed position.
A white “ENTRY DOOR PIN” advisory mes-
sage will also appear on the CAS when the air-
plane is on the ground with the door open and
the entry door pins are not all fully open. It will
be accompanied by the ENTRY DOOR warn-
ing indications.
Also, the “ENTRY DOOR” CWP annunciator,
a n d t h e “ E N T RY D O O R ” a n d “ E N T RY
DOOR PIN” CAS messages all illuminate if
the DOOR circuit breaker on the pilot circuit
breaker panel is out.
Amber caution messages are also displayed on
the CAS for additional access doors that are
not secure (i.e. tailcone access door, the bag-
gage door and the emergency exit door). These
same CAS messages are illuminated when-
ever the corresponding doors are opened in-
tentionally.
Visual backups, to insure the passenger/crew
door is secured, consist of sight holes located
on the inside of the doors. These sight holes
allow for a visual inspection to confirm that
the pins have engaged properly. The sight
holes (Figure 1-13) are located on both the
upper and lower doors.
L E A R J E T 4 5
P I L O T T R A I N I N G M A N U A L
FlightSafety
international
1-11
FOR TRAINING PURPOSES ONLY
VENT DOOR
KEYLOCK
OUTSIDE
HANDLE
Figure 1-11. Passenger/Crew Entry Door (Closed/Open)
PULL-UP
CABLE
LOWER
HANDLE