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Had that happen before a flight once. They said there was some weird behavior and they'd powercycle the entire plane for a few seconds. Everything went dark for a bit and apparently it was fine afterwards.

I think it was an Embraer E-170.

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Heh, it's like rebooting the tablet in my Tesla 3 by holding both scroll wheels for 10 seconds. It's both creepy and reassuring that the car operates just fine even when you can't see your speed, hear your turn signals clicking, and so on. The separation between body control modules and "user-facing" controls gives me more confidence in the face of potential bugs.

I’ve experienced that while on the ground (also an Embraer I think). Was your experience in the air? I think I’d hold my breath if that happened while mid flight.

While I understand that it's part of the procedure and flying is generally very safe, I'd be holding my breath, armrest, and fellow passengers with a vise grip if they power cycled my plane mid-flight.

The commenter said “before” the flight, so I think it was on the ground.

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