Landing Gear Warning System
The aural warning horn will sound and three red
UNSAFE lights will come on when the landing
gear is not down and locked and either thrust lever
is retarded below approximately 70% rpm.
Except on model 23 airplanes, the horn also
sounds when the flaps are extended beyond 25º if
the landing gear is not down and locked, regard-
less of thrust lever position. In this case, the horn
cannot be muted.
Holding the TEST–MUTE switch in the TEST
position illuminates all six-position indicator
lights and sounds the horn. Momentarily posi-
tioning the switch to MUTE silences the horn
when thrust levers are retarded and the gear is
not down and locked.
COMPONENTS
Main Gear
Each main gear consists of a conventional air-
hydraulic shock strut, dual wheels, torque arm,
squat switch, main gear actuator, inboard and
outboard doors, and an inboard door actuator
(Figure 14-3).
14-3
FOR TRAINING PURPOSES ONLY
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