Radio Altitude Based Alerts
Aural Alert
Visual Alert
Description
PULL UP
PULL UP on both attitude
indicators.
Follows SINK RATE alert if
descent rate becomes severe.
Follows radio altitude based
TERRAIN alert if excessive
terrain closure rate continues
and landing gear and/or flaps
are not in landing configuration.
TERRAIN
PULL UP on both attitude
indicators.
Excessive terrain closure rate.
DON’T SINK
PULL UP on both attitude
indicators.
Excessive altitude loss after
takeoff or
go–around.
GLIDE SLOPE
BELOW G/S
P–INHIBIT
lights.
Deviation below glide slope.
Volume and repetition rate
increase as deviation increases.
Pushing the ground proximity

BELOW G/S
P-INHIBIT
light cancels or inhibits the
alert below 1,000 feet RA.
SINK RATE
PULL UP on both attitude
indicators.
Excessive descent rate.