Some live weather breaks YS-11 engines

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ISSUE DESCRIPTION

Description of the issue: Some live weather conditions are causing damage to the YS-11 engines.

I noticed that sometimes, within minutes of starting the YS-11 engines, they would just die and could not be able to be restarted. At other times, no issue was noticed.

Tonight I used the devmode debug wear & tear tool and saw the bug live.

FREQUENCY OF ISSUE

Seems to depend on weather conditions. Nice weather at LIMJ tonight - no fault. Cold and unpleasant at LZSL - engines dying.

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

  1. You will need to identify an affected weather state. I found LZSL over the last couple of days triggered this - about 1C temp, low cloud. Free Flight, NAMC YS-11, Cold and Dark. Start devmode → Debug → Wear and Tear. Watch the engine counters.

  2. Abbreviated start-up -

    1. Batteries ON
    2. Radios ON
    3. Seatbelts/No Smoking Lights ON
    4. Fuel pumps ON
    5. Nav and Ant-Coll. Lights ON
    6. Engine 2 condition lever to ON
    7. Engine start selector - swith to 2
    8. Start ON
    9. Press the START button
  3. Immediately you press the START button you will see an Overstress number appear in the debug window and the “Time until weak” counter on engine 2 will start rapidly decreasing. The engine will die within a few minutes if left in this state.

  4. Pop-up the weather window. Switch off Live weather. The Overstress number spontaneously disappears and the engine degrades at normal rate (Curiously, the unpowered engine also is counting down). Switch live weather back on - Overstress comes back.

YOUR SETTINGS

If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the User Support Hub.

  • All mods disabled

What peripherals are you using, if relevant:

[PC Only] Are you using Developer Mode or have you made any changes to it?

  • Issue occurs without dev mode. Use dev mode to see it break.

[PC, MSFS 2020 Only] Are you using DX11 or DX12?

[PC Only] What GPU (Graphics Card) do you use?

  • RTX 5080

[PC Only] What other relevant PC specs can you share?

MEDIA

Live weather on

Live weather off

Same airport - LZSL

I do know this has happened to me at other places, but this appears to be consistently failing. No add-on airport being used.

Failing again. Interestingly, the live weather conditions are identical today as they were 2 weeks ago.

Would be great if a mod could run this up on the same airport to confirm the bug!

Maybe it’s the weather system, maybe the engines, maybe both.

I’m experiencing the same problem after I start engines in Hondajet; getting MSFS engine malfunction popup error after a few minutes on the ground. The overstress is even higher at 0.85%/sec. Airport PASY, live weather, very low visibility.