Excessive Descent Rate Alert (Edr) - Garmin GDL 69A Pilot's Manual Addendum

Part Three: Section 3
TAWS Alerts

Excessive Descent Rate Alert (EDR)

The purpose of the Excessive Descent Rate alert
is to provide suitable notification when the aircraft is
determined to be closing (descending) upon terrain
at an excessive speed. The parameters for the alert as
defined by TSO-C151b are shown in the Descent Rate
graph.
Excessive Descent Rate Graph
40
"PULL UP" "PULL UP"
190-00356-30 Rev C
Excessive Descent Rate Severity Levels
CAUTION—The annunciation and pop-up terrain
alert are accompanied by the aural message "Sink
Rate".
WARNING—The annunciation and pop-up terrain
alert are accompanied by the aural message "Pull
Up".