A hint: use the malfunctioning automated approach mode of G1000 as opportunity to fly the approach manually, something every aspiring real world IFR pilot must learn, before he is allowed to fly the the approaches on the autopilot. 

On 9/14/2020 at 8:07 AM, KenG said:

Yes, but there are numerous ways to set this up. I find if you set up the approach on the flight planning page then it is more likely to be successful. If however, you allow ATC to assign an approach and you try to load it using the PROC in the G1000/3000 then it will fail most of the time as the flight guidance tries to route you back to the first waypoint in the flight plan.

This may vary by aircraft. 

I finally had available time this morning to test a theory in the DA62.  My IFR flights in the DA62 had been dogged by the turnaround and fly the flight plan backwards issue. 

Today I flew this route:  KUMP - SHB - MOUTH - KBMG. 

I created the flight plan in Littlenavmap, saved it as a .pln file and loaded it in MSFS.   When I was up off KUMP enroute to SHB I selected and loaded the RNAV (GPS) 17 approach (EDISY) into KBMG.  MOUTH was the final Navpoint in the flight plan before the approach. 

When I was midpoint in the segment from SHB to MOUTH, I activated the approach.  The G1000 immediately enunciated the first segment of the approach, from EDISY to ITYEF, as the active leg (magenta bracket).  The AP continued to fly me to MOUTH, then on to EDISY where it accurately picked up and flew the approach.

My experience in the C172 (G1000) has been that the approach can successfully be activated after that last navpoint and fly the approach correctly.  So there appears to be a difference in the behavior between the two aircraft.

Do you know if this worked the same before the latest patch?  I'm wondering (hoping) this has been fixed.

 

Thanks

 

 

1 hour ago, tyrodes said:

Do you know if this worked the same before the latest patch?  I'm wondering (hoping) this has been fixed.

Thanks

I got tied up doing other things for the past few days and did not get around to this until today.  The flight I profiled just above is my only flight since the update.  All I can say is that before, if I waited until after that last flight plan fix before the approach, the DA62 would turn around and fly back to that previous fix, and then continue on, flying the flight plan in reverse, along the flight plan route, back toward the departure airport.

Now, the last time I had that happen, on the 12th of the month, when it started me back to the previous fix and I cleared that previous fix, I went into the PROC screen and for a second time activated the approach.  The DA62 then turned in the correct direction and followed the approach.  So if you are flying in an aircraft that turns back, try activating the approach again.

This issue with the G1000 causing issues with the approach is well known and I've read a fix was in beta in the G1000 mod project. I'm sure a search of these forums will turn up the thread/github links.