> If such a failure were to occur during level flight at cruising altitude, the air crew would have a reasonable amount of time to diagnose the problem and shut down the MCAS. The procedure to shut down automatic trim control (part of MCAS) remains the same from older 737 designs.
But in both the Lion Air and Ethiopian Airlines crashes, the air crews had relatively little time to determine what was wrong while fighting to keep their aircraft in a climb—in the Lion Air case, the aircraft crashed 10 minutes into the flight.