I A P 2 0 2 3 . 0 0 1 - A F M / I R I S T E X A N I I P A G E | 52
FOR SIMULATION USE ONLY – NOT A TRAINING AID
Landing Gear Position Warning
The aural landing gear position warning is a 250 Hz tone repeated 5 times per
second, transmitted through the audio system, and activates when any one of the
following conditions are met.
Gear handle not DOWN (regardless of gear indications), PCL below a mid-
range position (approximately 87% N1), airspeed below 120 KIAS, and flaps
UP or TAKE-OFF.
All gear not indicating down and locked with flaps LDG (regardless of gear
door position, power setting, or airspeed).
Weight on wheels with gear handle not DOWN.
Warning Silence Button
The WARNING SILENCE button may be used to silence the warning horn when
activated unless configured with gear UP/flaps LDG, or gear handle UP/aircraft on
the ground.
In addition, if LDG flaps are not selected, pressing the WARNING SILENCE button
prevents the warning horn from activating when pressed above 120 knots, PCL
below a mid-range position (approximately 87% N1), and subsequently the aircraft is
slowed below 120 knots.
The aural warning only resets if the PCL is moved above a mid-range position
(approximately 87% N1), and then retarded below a mid-range position
(approximately 87% N1).
An airspeed sensor prevents aural gear warnings above 120 KIAS, with the gear
handle and flaps UP or take-off (TO), regardless of PCL position.
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