Pilot's Operating Handbook
Supplement 49
GARMIN TAWS system
Edition 2 - December 31, 2015
Rev. 2
Page 9.49.12
The aural/displayed messages associated with the EDR function are described in the
table 9.4
9.4.
Alert Type
PFD/MFD
TAWS Page
Annunciation
MFD Map Page
Pop-Up Alert
Aural Message
Excessive Descent
Rate Warning
(EDR) (Red)
PULL UP PULL UP
”Pull up”
Excessive Descent
Rate Caution
(EDR) (Amber)
TERRAIN SINK RATE
”Sink rate”
Table 9.49.4 - EDR alerts
4. Negative climb rate after takeoff alert (NCR)
The purpose of the Negative Climb Rate (NCR) After Takeoff alert (also referred to as
Altitude Loss After Takeoff) is to provide suitable alerts to the pilot when the system
determines that the airplane is loosing altitude (closingupon terrain)after takeoff.The
aural message ”Don't sink” is given for NCR alerts, accompanied by an annunciation
and a pop-up terrain alerton the PFD's and Touchscreen Controllers. NCR alerting is
only activewhen departing from anairport andwhen the following conditions are met :
- The height above the terrain is less than 700 feet.
- The distance from the departure airport is 5 Nm or less.
- The heading change from the heading at the time of departure is less than
110 degrees.
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