Garmin GNS 530W, Pilot'S Manual & Reference

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5 - PROCEDURES
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5. Sixty seconds prior to reaching the FAF (LOTKE),
the unit will check the required Horizontal Alarm
Limit (HAL) and Vertical Alarm Limit (VAL) to
ensure the GPS position integrity is within limits
to complete the LPV precision approach. In the
event the HAL or VAL limits are exceeded, the
approach will be downgraded to a non-preci-
sion approach indicated by “LNAV” on the
moving map, a message that the approach is
downgraded (“Approach downgraded - Use
LNAV minima”), and the glideslope indicator
will be flagged. You may continue the approach
using LNAV non-precision minimums if there
are LNAV minimums for this approach. In the
rare event the GPS integrity cannot meet the
non-precision HAL limits, the unit will send a
message to the pilot to abort the approach
(“Abort Approach - Loss of Navigation”). The
unit will revert to terminal limits to support
navigation to the missed approach when the
message is acknowledged.
6. Capture the glideslope as you would an ILS
glideslope.
7. As you cross LOTKE, the destination sequences
to CUKEV and then the MAP (“RW31”, the
runway threshold). With the needle on the
external CDI (or HSI) centered, fly toward the
MAP, observing the altitude minimums dictated
by the approach plate.
After you cross the FAF (LOTKE), follow the
guidance provided to the MAP (RW31).
8. When viewing the Map Page, you’ll note
that the final course segment is displayed
in magenta (the active leg of the flight plan
always appears in magenta).
9. As you approach the MAP, a waypoint message
(“Next DTK 312° in x sec”) appears on the
bottom of the screen.
10. Once the unit crosses the MAP (defined as
the runway end waypoint), sequencing will
be suspended. Prepare the aircraft for missed
approach operation. Press the OBS key to
sequence to the Missed Approach procedure.
After you cross the MAP and go to the MAHP,
follow the guidance provided.
LPV Approach