Chinese air crash

[OwlHoot]

Interesting thread on PRRUNE started today:

2022-03-21 China Eastern 737-800 MU5735 incident

The most plausible non-non-commital speculation so far seems to be:

My guess - stab(ilizer) trim runaway not noticed by crew. Autopilot eventually gives up an disengages leading to violent pitch down. Crew figure out what’s wrong and retrim only to overstress during the pullout.

and according to Google:

Stabilizer Trim Runaway. a malfunction which occurs when the Trimmable Horizontal Stabiliser (THS), or tailplane, on the aircraft tail fails to stop at the selected position and continues to deflect up or down.

[Gibbon]

Interesting thread on PRRUNE started today:

2022-03-21 China Eastern 737-800 MU5735 incident

The most plausible non-non-commital speculation so far seems to be:



and according to Google:

Yeah plausible, one of the big differences between Boeing (the older ones at least) and Airbus is envelope protection.

Boeing will allow outside the envelope manoeuvres that may save the aircraft (but may tear it apart too). Airbus don't, but may hit the ground!

[vwdan]

Certainly looks something stabiliser related - I saw a video earlier and it impacts like a ******* missile. I'm less convinced by the runaway trim - I feel like trim is just on peoples minds because of the MAX debacle - but whatever sparked the chain of events, it certainly looks like a catastrophic mechanical failure at the end.

Never a fan of those sorts of threads though - brings out the walter mitty forensic experts who are invariably wrong