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Initial Approach Fix (IAF)
1. Prior to the Initial Approach Fix (IAF), the MSG
indicator will light to announce a Waypoint Arrival
Alert. Press
MSG to acknowledge the message and
view the instructions to the next approach point.
2. Press
MSG to return to the previous function.
3. Prior to reaching the IAF, determine if a procedure
turn or a course reversal is required. If so, press
OBS/HLD to suspend sequencing. See page 21 for
details on procedure turns.
Final Approach Fix (FAF)
1. When you are 3 nm inbound to the Final Approach
Fix (FAF) and not on Hold (sequencing
suspended), the Active light will flash to indicate
that you are about to transition to Approach Active
and Approach RAIM Prediction will begin. At 2
nm from the FAF, the CDI sensitivity will start to
gradually scale from 1.0 to 0.3 nm full scale. At the
FAF, CDI sensitivity will be at 0.3 nm full scale.
2. When you are near the Final Approach Fix, the
MSG annunciator will flash and a standard
Waypoint Arrival Alert will turn on. Press
MSG to
acknowledge the message. Press
MSG to return to
your previous function.
9-10
Approach Basics (GX50/60)
MSG
OBS/HLD
WPT SEQ
MSG
MSG
Approach Transition Operation
CDI Scale = 1.0nm
2nm to
FAF
3nm to
FAF
CDI Scale
Transitions
1.0 to 0.3nm
CDI Scale
Transitions
5.0 to 1.0nm
ACTIVE
Annunciator
Flashes
IAF
FAF
APPRCH Annunciator On