Aural Indications
A steady warning horn is provided to alert the flight crew whenever a landing is attempted
and any gear is not down and locked. The landing gear warning horn is activated by
forward thrust lever and flap position as follows:
Flaps up through 10 –
- Altitude below 800 feet RA, when either forward thrust lever set between idle and
approximately 20 degrees thrust lever angle or an engine not operating and the
other thrust lever less than 34 degrees. The landing gear warning horn can be
silenced (reset) with the landing gear warning HORN CUTOUT switch.
- If the airplane descends below 200 feet RA, the warning horn cannot be silenced by
the warning HORN CUTOUT switch.
Flaps 15 through 25 –
- Either forward thrust lever set below approximately 20 degrees or an engine not
running, and the other thrust lever less than 34 degrees; the landing gear warning
horn cannot be silenced with the landing gear warning HORN CUTOUT switch.
Flaps greater than 25 –
- Regardless of forward thrust lever position; the landing gear warning horn cannot be
silenced with the landing gear warning HORN CUTOUT switch.
The warning indication is cancelled when the configuration error is corrected.
