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G550flyer

777-300 autopilot not responding

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I've noticed that when cruising, the autopilot will stop maintaining course and altitude. It shows engaged but will not follow any commands. Anyone else seeing this?

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Anyone else seeing this?

 

I was about to ask you if you hit the AP button in addition to MCP modes, but knowing you I doubt that's actually the problem.

 

Instead, what did the FMA say when this happened?  Were you using accel?  What weather programs (and so on)?

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Greetings Kyle, I had been in a cruise for about 15 minutes. everything seemed normal until I selected heading mode. the FMA displayed alt hold, speed, and heading but the aircraft would not respond. I did have ASN and EZCA running. I tried reloading the aircraft and the screens went dark. At that point i switch to a 767 and finished the flight.  

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At that point i switch to a 767 and finished the flight.  

Sucks to be the passengers who got bumped mid-flight.  :lol:  :o  :mellow:

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I tried reloading the aircraft and the screens went dark. At that point i switch to a 767 and finished the flight.

 

Hi, G550flyer,

 

If you reload a 777 flight on top of itself you are likely to get blank screens or other weirdities. But if you load the default ultralite/trike/Friday Harbor flight in between it should work.  If you are using Autosave you could then reload the flight from a slightly earlier time -- an earlier saved panel state might not have the problem, but I really don't know what's causing it.

 

Mike

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Hello,

 

Any statement about  this issue ?

 

I just had this bug, first time since I had the 777 (2013)... On a 777-300ER between the south of Iceland and Greenland. A/P engaged since the departure climb, and small altitude deviation noticed 3hrs after t/o. A/P do not modify the aircraft behaviour whatever the guidance mode engaged...  FD is correctly reflecting the MCP orders but no aircraft path modification, even when desactivating A/P as flight controls seem to be freezed as well.

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I add that some features of the virtual cockpit don't move any more, as the throttles when I disconnect the A/T. 

 

I use ASN, and I was online on IVAO

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23 hours ago, Renaud972 said:

I add that some features of the virtual cockpit don't move any more, as the throttles when I disconnect the A/T. 

 

I use ASN, and I was online on IVAO

This is a thread that is over 4 years old, by the way.

As far as the issue goes, note that you haven't had this issue (not 'bug') since 2013. If it were a bug, you'd keep running into it. In this case, it's likely something else. What changed recently on your machine?

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