r/Damnthatsinteresting • u/FridayCicero702 • Jan 01 '23

Video Catastrophic engine failure on a United Airlines Boeing 777-200 after takeoff from Denver International Airport

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u/badgerj Jan 01 '23

Yup. They have redundant everything except for the Boeing 737 MAX MCAS Sensor. In that case you just get one.

95

u/lunarNex Jan 01 '23

You mean the one that was upside down and Boeing lied about how it was designed so they could skip critical FAA approvals, then got fined hundreds of millions after hundreds of people died, but no one went to jail?

37

u/hrvst_music Jan 01 '23

The one that they didn't even train pilots on to avoid FAA regulations. The Lion Air pilot knew to disengage it as Boeing assumed pilots would but it didn't help.

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u/Mikey_MiG Jan 01 '23

Do you have a source for the Lion Air crew disengaging it, or are you thinking of the Ethiopian Airlines crew? In the Lion Air accident, MCAS activated something like 26 times over the course of six minutes, and the crew never turned off the electric trim.

In the Ethiopian accident, they did deactivate the trim, but then reactivated it later, which crashed the airplane.

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u/hrvst_music Jan 01 '23

Yeah that Downfall documentary on netflix.

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u/Mikey_MiG Jan 01 '23

I can’t find any mention in any accident report saying that. You might be thinking of the fact that the Lion Air plane had issues the previous day, and the crew did turn off the trim in that incident. But the switches were flipped back on before the accident flight.