According to Bloomberg, the 'dead-head' pilot on the earlier flight from Bali to Jakarta was able to explain to the crew how to disable a malfunctioning flight-control system by cutting power to a motor driving the nose of the plane down.
The previously undisclosed detail supports the suggestion that a lack of training is may be at least partially to blame in the March 10 crash of another 727 Max 8.
The previously undisclosed detail on the earlier Lion Air flight represents a new clue in the mystery of how some 737 Max pilots faced with the malfunction have been able to avert disaster while the others lost control of their planes and crashed. The presence of a third pilot in the cockpit wasn't contained in Indonesia's National Transportation Safety Committee's Nov. 28 report on the crash and hasn't previously been reported. -Bloomberg
As we noted last week, several pilots had repeatedly warned federal authorities of the Max 8's shortcomings, with one pilot describing the plane's flight manual as "inadequate and almost criminally insufficient."