MustanGrande wrote on Mar 7^th, 2011 at 10:47pm:

Let me know what you find.

I've done a test flight. And the results are as follows.

When the AP is ON and the Nav Mode Selector Switch is TACAN, VOR, ILS and ILS APP and Heading Selector Switch is in MAN, it overrides the NAV mode and so the AP is actually in HEADING HOLD mode and follows the Heading Bug. The Nav Modes work correctly, if the Heading Selector Switch is in NOR mode, the Nav Mode selected is controlling the direction of the flight.

If the Flight Director Switch is OFF, the AP Nav Mode and Heading Hold do not work. Altitude Hold does work with the FD switch OFF.

So after doing all those tests, the AP works as the Manual states it should. Your problem is simply because the Flight Director switch is OFF.

Mark