ATR - cannot start engines after shutting down

After I shut down the engines and switch to ground power I cannot start them again. No Nh rotation. Additionally, the panel lights won’t work and all illuminated pushbuttons are suspiciously dim. The only way to fly more than one leg is to restart the flight. I believe this problem has been around for a long time but I fly ATR very rarely. Is there any sort of workaround for this?

Hello @juk1236743,
I’ve added the ATR tags but wasn’t sure which ATR so I added both!

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Saw this from earlier this year. Looks like it fixes several battery, generator and charging issues. If you havent updated the ATR I would try this update.

https://forums.flightsimulator.com/t/june-21-2023-expert-series-i-atr-42-600-72-600-update-1-0-20/597609

My ATR is up to date

I am having the same issue, even after latest update.

I have flown one leg, but for the second leg, I am not able to start the engines again.

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Should be moved to the bug section with voting able …

Updated ATR and I am having the same issues.

Guys, make sure you have enough voltage in your batteries.

Also, some smaller airports sont have enough powerful GPU, for those you have to run hotel mode

In order to run Hotel mode, we need to be able to start the engine. Which, we can’t. At least after shutting down already.

Same issue reported here too:

Could it be linked to that bug report ?

I also got a similar problem, engines can’t start. Even if I enable the “hotel mode” or “ready for taxi” panel states from the EFB, the engines don’t run. The “hot bus main battery” is showing 3V in the systems page, and won’t recharge.

It happened after a flight reload - I first started the flight but mistakenly set my departure point on the runway, meaning the engines were running. I promptly ended the flight, relocated the aircraft to the parking spot, and started a new flight. Now the engines simply won’t start, and the battery is flat and won’t recharge.

Edit: Upon further testing I can confirm the issue is 100% due to the battery going flat, even if the systems page is showing that the GPU is charging the battery. You can reset the flat battery in-game using Dev Mode, as described in below. I checked in Dev Mode and my battery was at 0%.

See link here:

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I’ve had the same issue - trying to do a multisector flight and was unable to restart the engines after a full shut down. Not great for an aircraft like this where short hops are often part of the role.

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Same here, latest version sim & aircraft as of 22 JUN 2024

Seems like the GPU doesn’t charge the battery, or any bus for that matter, it was only 3V, maybe thats why the engine doesn’t start anymore?

Try this as a workaround: go temporarily into Dev Mode, open the Aircraft window and choose the same aircraft again.

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Is there going to be a fix for this? Or have updates on this plane been abandoned? Going into dev mode to fix is a rather inconvenient workaround.

Next update is scheduled for september according to last dev stream

I was trying this model and i seem to have run into this problem…

from cold & dark, for the life of me, i couldnt get the engines started
i’ve read that you must have an active fplan loaded in the fmc, is this real life behavior? does anyone know? or is it a bug?

Did you check the voltage in the battery page ?

Chances are that you are at a parking spot without a sufficiently powerful GPU and you let the voltage drop low enough that the engine starter could not start (the PW100 use an electric Starter-Generator since it’s small enough for one to do the job)

Usually if you are at a small airport, you should either do the basics without a GPU or use hotel mode on engine #2 to provide sufficient power to the aircraft

aahh that must’ve been it then
i’ll double check, tks

Guys, maybe some of you are performing the engine fire test mistakenly. That was my case. Instead of checking the squib test button, i was pulling the fire extinguisher handle (the red one). That was the reason for not getting NH above 17%.
Anyway, i hope i could help some of you.