Operation Manual Part 2

Aerosoft – Digital Aviation
CRJ-70 & CRJ-900
AOM PART 2
Systems Description
VOL
5
5-1-111
26-Jul-2017
During take-off and final approach and altitudes between 10 and 1,000 feet the GPWS detects windshear
conditions and triggers respective warnings.
The system distinguishes whether a condition with a tail-wind and downdraft or a headwind and upwind is
experienced. In either case the flight director will command a suitable attitude to escape the windshear
condition and pitch limit indicators (alpha-margin indicators) will appear on the PFDs.
In case of a tailwind and downdraft windshear, a siren and the WINDSHEAR WINDSHEAR WINDSHEAR aural
warning will sound as well as a red windshear warning is displayed on the PFD.
In case of a headwind and upwind windshear, an amber windshear alert is displayed on the PFD.