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GNS 530(A) Pilot’s Guide and Reference
190-00181-00 Rev. E
13-4
SECTION 13
TAWS
13.3 TAWS ALERTS
TAWS Alerts are issued when flight conditions meet
parameters that are set within TAWS software algorithms.
TAWS alerts typically employ either a CAUTION or a
WARNING alert severity level, or both.
When an alert is issued, visual annunciations are
displayed. Aural alerts are simultaneously issued.
Annunciations appear in a dedicated field in the lower
left corner of the display (Figure 13-2). Annunciations
are color-coded according to Table 13-2.
Figure 13-2 TAWS Annunciation Field
TAWS Annunciation Field
Pop-up terrain alerts (Figures 13-3 & 13-4) can also
appear during an alert, but only when the TAWS Page is
not displayed.
There are two options when an alert is displayed:
• Press the CLR Key. This acknowledges the
pop-up alert and returns to the currently
viewed page.
• Press the
ENT Key. This acknowledges the
pop-up alert and accesses the TAWS Page.
NOTE: To further capture the attention of the
pilot, TAWS issues aural (voice) messages that
accompany visual annunciations and pop-up
alerts.
Figure 13-3 Caution Alert Pop-up
Figure 13-4 Warning Alert Pop-up
NOTE: Alerts with multiple messages (see Table
13-2) are configurable at installation and are
installation-dependent.
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.