ENTRANCE DOOR
The cabin entrance door is on the forward left
side of the fuselage (Figure 1-5). The entrance
door opens outboard and forward. It is se-
cured in the closed position with eight lock-
ing pins attached to a handle. The door can be
opened from inside or outside of the airplane.
The exterior handle can be secured with a key.
Ensure that the key is removed from the en-
trance door prior to flight to prevent possible
ingestion of the key into an engine.
An adjustable stop prevents the door from
opening too far. Once the door is fully open,
a hook locks the door into position. To unlatch
the hook and let the door close, a release but-
ton inside the cabin (inside left of door open-
ing) must be pushed (Figure 1-5). This lets the
door move freely.
The locking pins will contact and
damage the painted surface of the
fuselage if an attempt is made to shut
the door with the handle in the closed
(up) position.
The seal system operates passively as the cabin
is pressurized. The seal engages and disen-
gages when the door opens and closes.
A hinged panel at the main cabin door thresh-
old is used as a water barrier during ditching
(Figure 1-6). It hinges up to prevent water
from entering the aircraft, and enables the use
of the entrance door as an exit during ditching.
Water barrier must be raised and
latched into position prior to ditching.
WARNING
CAUTION
CITATION MUSTANG
OPERATING MANUAL
510OM-00
1-5
Figure 1-5. Entrance Door, Interior Handle, and Latch Release