Originally Posted by
Cloud Cutter
Doubt it’s based on raw rad alt data, more likely runway field clearance floor. Needless to say, Mr Honeywell will alert you in plenty of time.
A ‘CONFIG GEAR’ EICAS warning is generated if the landing gear is not down and locked and one of the following occurs:
- Below 800 feet radio altitude and a thrust lever is at idle, or
- The flaps are in a landing position
A GPWS Mode 4A warning ‘TOO LOW GEAR’ is triggered at 500 ft RA.