T-6A INSTRUMENT NAVIGATION
SELECTING AND LOADING GPS NON-PRECISION APPROACHES
In order to use an approach, the approach must be loaded into the active flight plan. The APT 8
page is used to select approaches for the desired airport. The following example uses the VOR
or GPS 25R approach to Los Angeles International Airport (KLAX) with the ELMOO IAF.
The front unit must be on and functioning properly for either unit
to be used for navigation. The last input from either cockpit has
priority for system control.
GPS non-precision approach procedures are safe for use only when
a valid database is loaded and used before the expiration date. Use
of out-of-date database information may cause navigation errors
and hazards. Maintenance personnel use a Personal Computer
Memory Card International Association (PCMCIA) card to
periodically update the database.
Turn to any APT page and select KLAX 2. Select APT 8 page.
Activate right cursor and position over desired approach (VOR 25R).
With flashing cursor over desired approach (VOR 25R), press ENT.
The GPS will now display available IAFs. Position cursor over ELMOO and press ENT.
If only one IAF is available for the selected approach, the GPS will
proceed from step 4 to step 6.
5. The GPS will now display the waypoints that comprise the approach. Review to verify
correct approach is selected. Press ENT.
6. Position cursor over LOAD IN FPL and press ENT. The GPS will check the active flight
plan to verify the airport, which corresponds to the selected approach, is in the active flight plan.
If the airport is not in the active flight plan, the GPS will prompt "PRESS ENT TO ADD KLAX
AND APPR TO FPL 0 APPROVE?" Press ENT to add approach and corresponding airport to
the active flight plan.
7. The GPS will automatically sequence to the FPL 0 page and insert the approach waypoints
in front of the airport waypoint.
GLOBAL POSITIONING SYSTEM