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INTRODUCTION
Table of Contents
TERRAIN/Obstacle Database Areas of Coverage .................................................................................36
Navigation Database ...........................................................................................................................36
Nearest Airport Criteria & TERRAIN Phase of Flight .........................................................................37
TERRAIN Destination Airport ............................................................................................................37
Pop-up Alerts ....................................................................................................................................38
Forward Looking TERRAIN Avoidance ..............................................................................................39
Premature Descent Alerting (PDA) .....................................................................................................40
TERRAIN Failure Alert .......................................................................................................................41
‘TERRAIN Not Available’ Alert ...........................................................................................................41
TERRAIN Alert Summary ...................................................................................................................42
Overview ...........................................................................................................................................43
Operating Criteria ..............................................................................................................................43
GPS Position and GPS-MSL Altitude ..................................................................................................43
TAWS Alerting using the GPS Position/GPS-MSL Altitude ..................................................................44
Baro-Corrected Altitude verses GPS-MSL Altitude ..............................................................................44
Premature Descent Alerting (PDA) using GPS-MSL Altitude ...............................................................44
Limitations .........................................................................................................................................45
Power Up ...........................................................................................................................................46
TAWS Page ........................................................................................................................................46
Inhibit Mode ......................................................................................................................................48
TAWS Manual Test .............................................................................................................................49