CHAPTER 4 REFERENCE GUIDE
EFD1000 PRO MAX PFD Pilot’s Guide
Page 4-90
091-00005-002 ()
Aural/Audio Alert
When a terrain alert occurs, an Aural Alert (an audible alarm from an external tone
generator) provides a distinct stuttered, 3-second aural tone when a terrain/obstacle
alert occurs. After the initial alert tone has sounded, the aural alert will sound again
whenever a higher priority alert occurs.
When a terrain alert occurs, the audio alert sounds the appropriate voice message
“CAUTION - TERRAIN, TERRAIN”
“CAUTION - OBSTACLE, OBSTACLE”
“WARNING - TERRAIN, TERRAIN”
“WARNING - OBSTACLE, OBSTACLE”
NOTE
In aircraft certified with a Terrain Avoidance Warning
System (TAWS), the Aspen TWS system does not
provide audible alert or text alert information. Only the
FPM Coloring and the Terrain Coloring is displayed.
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