Selecting and Loading GPS Non-Precision Approaches

T-6A INSTRUMENT NAVIGATION

CHAPTER EIGHT

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.

NOTE

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.

WARNING

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of out-of-date database information may cause navigation errors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.

NOTE

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

8-7