How would he know something that was undisclosed? It's not conjecture here, no airlines and no pilots knew of the presence of MCAS before the Lion Air 610 crash.
The article says that all of the pilots were supposed to know what to do in this situation:
> The so-called dead-head pilot on the earlier flight from Bali to Jakarta told the crew to cut power to the motor driving the nose down, according to the people familiar, part of a checklist that all pilots are required to memorize.
This guy didn't go off script. It seems like he was the only one of the three who knew the script.
This guy didn't go off script. It seems like he was the only one of the three who knew the script.
The script says to stop if the trim adjustments stop when you counter with manual trim input. MCAS, by design, stops. You can see where MCAS stops trimming nose down on the preliminary Indonesian report (they graph both the fatal flight and the previous flight).
How would he know something that was undisclosed? It's not conjecture here, no airlines and no pilots knew of the presence of MCAS before the Lion Air 610 crash.