Accidents
Report on Lion Air Flight 610 Raises More Questions
Logs indicate that mechanics replaced suspect AOA sensor on October 27 but associated control problems continued.

A preliminary report released Wednesday by Indonesia’s National Transportation Safety Committee (KNKT) on the October 29 fatal crash of a Lion Air Boeing 737 Max confirms that a series of instrument failures occurred during the airplane’s previous four flights, including the one before the accident flight in which the pilots managed to override automatic nose-down inputs that appear to have led to the crash the following day. The report also details how the pilots of the ill-fated flight struggled to overcome the commands triggered by the airplane’s maneuvering characteristics augmentation system (MCAS) starting two minutes after takeoff and repeatedly until the crash 11 minutes later.