vi
Introduction
Table of Contents
TAWS Symbols ..................................................................................................................................50
Color Interpretation ...........................................................................................................................
50
General Database Information ............................................................................................................51
Database Versions ..............................................................................................................................
51
Database Updates ...............................................................................................................................51
Terrain/Obstacle Database Areas of Coverage .....................................................................................
52
Navigation Database ...........................................................................................................................52
Nearest Airport C
riteria & TAWS Phase of Flight ...............................................................................53
TAWS Destination Airport ..................................................................................................................
53
Section 3: TAWS Alerts ...............................................................................................................
54
Forward Looking TERRAIN Avoidance ..............................................................................................
55
Premature Descent Alerting (PDA) .....................................................................................................
56
Excessive Descent Rate Alert (EDR) ....................................................................................................57
Negative Climb Rate After Takeoff Alert (NCR) ..................................................................................
58
‘Five-Hundred’ Aural Alert .................................................................................................................
59
TAWS Failure Alert ............................................................................................................................
59
TAWS Not Available Alert ..................................................................................................... 59
TAWS Alert Summary ...........................................................................................................
60
APPENDIX A: Standard Forecast Abbreviations............................................................63
APPENDIX B: Graphical METAR Symbology.................................................................64
