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A340-300 Bug

Posted: Wed May 15, 2024 4:33 pm
by Boneking
Hi,
I'm encountering the following bug the last few times I flew the A340.
I created a flightplan with Simbrief and imported it into the A340.
The route is imported correctly and everything is fine at the beginning.
Sometime during the flight suddenly the flight plan disappears and the speed is reduced to 200 knots, almost if the plane switched to approach mode. The flight plan re-appears but now I have to select the speed manually in order to fly faster. Managed speed doesn't work anymore.
Any idea what the problem is?

Re: A340-300 Bug

Posted: Wed May 15, 2024 4:55 pm
by RicardoLVFR
Boneking wrote:
Wed May 15, 2024 4:33 pm
Hi,
I'm encountering the following bug the last few times I flew the A340.
I created a flightplan with Simbrief and imported it into the A340.
The route is imported correctly and everything is fine at the beginning.
Sometime during the flight suddenly the flight plan disappears and the speed is reduced to 200 knots, almost if the plane switched to approach mode. The flight plan re-appears but now I have to select the speed manually in order to fly faster. Managed speed doesn't work anymore.
Any idea what the problem is?
Was this a short flight?

Re: A340-300 Bug

Posted: Wed May 15, 2024 5:19 pm
by Boneking
About 3 1/2 hour flight. About one hour into the flight it happens.

Re: A340-300 Bug

Posted: Wed May 15, 2024 5:28 pm
by RicardoLVFR
Boneking wrote:
Wed May 15, 2024 5:19 pm
About 3 1/2 hour flight. About one hour into the flight it happens.
When the FP dissapears, what were you doing, did you try anything on the CDU? or you were not doing anything and all of the sudden this happened?

Re: A340-300 Bug

Posted: Wed May 15, 2024 6:21 pm
by Boneking
I did nothing at all. Airplane was on autopilot. The flight plan line disappeard, speed indicator showed 200 knots, thrust was reduced, fp re-appeared, managed speed didn't work afterwards. Only manual input of speed

Re: A340-300 Bug

Posted: Wed May 15, 2024 6:34 pm
by RicardoLVFR
It must be that for some reason appr mode was activated. We are now focused on the avionics side of things, to fix the issues. We apologize in the meantime.