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by maxthrow22
2471 days ago
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>>Immediately after liftoff, the captain’s airspeed indication failed, airspeed-disagreement and altitude-disagreement warnings appeared on his flight display and his stick shaker began to rattle the controls in warning of an imminent stall. This simple fact has simply been ignored by the broder community on hackernews who are not pilots. The airspeed indicator is tied into the AoA sensor. The moment the AoA fails the pilots recieve an airspeed disagreement warning that must be fixed using the unreliable airspeed checklist. If your analysis of what happend on either of the accident flight ignores this critical fact you are wrong. Welcome to the Danning-Krueger effect in action |
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Once mistrim happens, there is no possible way to get either of the two flights in question, to either 4 degrees pitch up and 75% N1, let alone 10 degrees pitch up and 80% N1. Any power reduction will cause a pitch down and make the problem worse. All your advise would do is kill them faster. Mistrim must be avoided at low altitude, and in these two cases MCAS induced mistrim faster than it could be identified and avoided. It takes significant altitude to recover from it, assuming you even know the procedure, which hasn't been in the 737 FOM for decades. Neither flight had sufficient altitude for that procedure.
If all of this were just about training and checklists, these airplanes wouldn't be grounded around the world.
I also find it hilarious you misspell your insult.