Garmin GNC 420W, Pilot'S Manual Addendum

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Appendix A
TAWS Alerts
TAWS Alerts Summary
Alert Type
TAWS Page
Annunciation
Pop-Up Alert Aural Message
TAWS System Failure None “TAWS System Failure”
Terrain Inhibited
None
None
Terrain Not Available None “Terrain Not Available”
Excessive Descent Rate (EDR) Caution “Sink Rate”
Excessive Descent Rate (EDR) Warning “Pull Up”
Required Terrain Clearance (RTC) Caution
or
“Caution, Terrain; Caution, Terrain”
or
“Terrain Ahead; Terrain Ahead”
Required Terrain Clearance (RTC) Warning
or
“Terrain, Terrain; Pull Up, Pull Up”
or
“Terrain Ahead, Pull Up; Terrain Ahead, Pull Up”
Imminent Obstacle Impact (IOI) Caution
or
“Obstacle Ahead; Obstacle Ahead”
or
“Caution, Obstacle; Caution, Obstacle”
Imminent Terrain Impact (ITI) Warning
or
Terrain Ahead, Pull Up; Terrain Ahead, Pull Up”
or
“Terrain, Terrain; Pull Up, Pull Up”
Required Obstacle Clearance (ROC)
Caution
or
“Caution, Obstacle; Caution, Obstacle”
or
“Obstacle Ahead; Obstacle Ahead”
Required Obstacle Clearance (ROC)
Warning
or
“Obstacle, Obstacle; Pull Up, Pull Up”
or
“Obstacle Ahead, Pull Up; Obstacle Ahead, Pull
Up”
NOTE : TAWS Caution Alerts are displayed as constant black text on a yellow background; TAWS Warning Alerts are displayed as
constant white text on a red background.