Boeing says disabled alert on 737 Max wasn't necessary for safe operation
Boeing's statement comes after Southwest Airlines, the company's largest 737 Max customer, said it was not informed about the disabled alert until after the fatal crash of a Lion Air 737 Max in Indonesia.
A number of grounded Southwest Airlines Boeing 737 MAX 8 aircraft are shown parked at Victorville Airport in Victorville, California, U.S., March 26, 2019.Boeing said Sunday a standard alert that had been disabled on the 737 Max jet due to a glitch was not necessary to safely operate the aircraft.Boeing did not inform it about the disabled alert until after the fatal crash of a Lion Air 737 Max in Indonesia last October.
In 2017, well before the Lion Air crash, engineers discovered the 737 Max display software didn't meet the requirements for the disagree alert. Boeing then followed its "standard process for determining the appropriate resolution of such issues," the company said in a statement Sunday. The 737 Max was grounded by the FAA in March in the wake of two fatal crashes that killed 346 people. Just months after the Lion Air crash, a Boeing 737 Max 8 went down just minutes afterSeveral major airlines have extended Max flight cancellations through the summer. American has canceled Max flights through Aug. 19, totaling 115 flights per day, while Southwest has canceled through Aug. 5 and United through June 5.
Air speed, attitude, altitude, vertical speed, heading and engine power settings are the primary parameters the flight crews use to safely operate the airplane in normal flight. Stick shaker and the pitch limit indicator are the primary features used for the operation of the airplane at elevated angles of attack. All recommended pilot actions, checklists, and training are based upon these primary indicators.
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