PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures
Old 20th Nov 2019, 17:16
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MurphyWasRight
 
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Originally Posted by Takwis
It would have been rather handy, if Boeing had mentioned that after the Lion Air crash. They were adamant that the pilots weren't trimming enough, though. Much commentary was made, here, about those little comments after AUTOPILOT-DISENGAGE, about getting the aircraft back in trim BEFORE cutting off the stab trim switches.

See "Evolution of Stab Trim Runaway Procedure", 737 Runaway Stabilizer Procedure
Or had the AD stated that suspected MCAS runaway could be held at bay by momentary blips (up or down) of the trim switches at < 5 second intervals but warned to expect it to re-engage 5 seconds after last input..
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