
6-5 General
EXCEEDANCES | CAUTIONS YELLOW
The FLTA algorithm is
predicting a likely ground
collision within
approximately 60 seconds
– initiate a proper
recovery maneuver.
The FLTA algorithm is
predicting a likely obstacle
collision with
approximately 60 seconds
– initiate a proper
recovery maneuver.
GPS Integrity Lost – Crosscheck
Nav
This is alerting about
imminent exceedence of
horizontal fault detection
limits or protection levels.
Crosscheck the nav
solution and determine the
best course of action but if
on an approach, a Missed
Approach is
recommended.
Position updated via dead
reckoning
The system will use the
last known position and
groundspeed (and
heading if available) to
estimate the aircraft
position following loss of
GPS for up to 5 minutes.
Since Dead Reckoning
assumes no directional or
groundspeed change, it
will not be reliable even
during those first 5
minutes if either or both of
these factors have
changed.
The navigation solution
cannot compute a
position, typically after
dead reckoning has
expired. Transition to
alternative navigation
sources.
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