KFC 150 Avidine 540 G5 HSI
The airplane will fly a non precision approach perfectly including the hold and vertical guidance if available. The entire approach to the FAF.
ILS is a different matter. Select and program destination. Select but do not activate ILS approach. Utilize either nav mode or hand fly to set up a 30 degree intercept to the ILS,
Engage autopilot, activate ILS approach, Nearing intercept select approach button. Approach light blinks until localizer established. Altitude and heading lights go out and approach light remains steady. GS light comes on. Intercept the localizer on the G5 (green) VLOC selected.....GPSS both on and off, we have tried both, aircraft starts to track the localizer and then either turns right or left off the localizer. I am pretty sure it is operator error, but I have read all the manuals, the KFC is functioning exactly as described, but it won't fly a simple ILS. We can always hand fly, but after spending a bunch of dough, we are both engineers, we would like to watch our toy perform. Any ideas????
Next step is probably a call to the avionics shop, but I don't think any of those guys fly. Hopefully I can talk one of them into a demo ride as there is an ILS at their non-tower controlled airport.