Avidyne IFD540, Pilot'S Manual

Page: 135 / 334

Map Pages 3-31
orientations. Note that for airfields with multiple runways, this may
have the effect of looking like several irregular shapes around the
airfield. If the aircraft position or the aircraft flight path projected
impact point is anywhere within that runway suppression area, no
FLTA alert will be generated. Obstacle threat bubbles can still
appear inside the suppression area.
FLTA alerts are inhibited if any of the following conditions are
met:
•
FLTA is manually turned off via the pilot-accessible “User
Options” LSK on the “SETUP” tab of the AUX page
(generates a “FLTA OFF” CAS Advisory message);
•
The ownship position is inside the rectangular (or circular,
in the case of no known runway orientation) FLTA Inhibit
zone depicted on the 2D map (generates a “FLTA
INHIBITED” CAS Advisory message);
•
The projected ground impact point along the current
ground track intersects the terrain inside that FLTA Inhibit
rectangle/circle (generates a “FLTA INHIBITED” CAS
Advisory message);
•
The Reduced Terrain Clearance (RTC) violation is
projected to happen inside that FLTA Inhibit
rectangle/circle (generates a “FLTA INHIBITED” CAS
Advisory message).
FLTA Inhibited and Off Messages