![]() Unlike their Indonesian counterparts, the Ethiopian investigators do not mention maintenance problems. (The Seattle Times has a great deep dive on the report.) It also blamed Boeing for providing inadequate training to crew on using the Max's unique systems. Like the Indonesian findings, it cites design flaws with MCAS such its reliance on a single angle-of-attack sensor. On March 9, 2020, almost one year to the day since the crash in Addis Ababa, Ethiopia's Aircraft Accident Investigation Bureau published an interim analysis. Report on 737 Max 8 crash blames Boeing design, Lion Air staff.Improper maintenance procedures and the lack of a cockpit warning light (see below question) contributed to the crash, as well. Investigators also found that MCAS relied on only one sensor, which had a fault, and flight crews hadn't been adequately trained to use the system. "The MCAS function was not a fail-safe design and did not include redundancy," the report said. ![]() Each time they pulled up from a dive, MCAS pushed the nose down again. Before crashing, the Lion Air pilots were unable to determine their true airspeed and altitude and they struggled to take control of the plane as it oscillated for about 10 minutes. The report identifies nine factors that contributed to the crash, but largely blames MCAS. 25, 2019, the Indonesian National Transportation Safety Committee published its final report on the Lion Air crash. The 737 Max 9, shown here at the 2016 Paris Air Show, is a larger version of the Max 8, but with the same piloting system that's under investigation. The aircraft involved was only four months old. Aboard were 149 passengers and eight crew members. But before the crew could make it back, the aircraft crashed 40 miles from the airport, six minutes after it left the runway. Just after takeoff, the pilot radioed a distress call and was given immediate clearance to return and land. The second crash occurred on Mawhen Ethiopian Airlines flight 302 departed Addis Ababa Bole International Airport bound for Nairobi, Kenya. That aircraft was almost brand-new, having arrived at Lion Air three months earlier. The flight crew made a distress call shortly before losing control. ![]() 29, 2018, Lion Air flight 610 dove into the Java Sea 13 minutes after takeoff from Jakarta, Indonesia, killing 189 people. ![]() Here's everything else we know about what's happened with the airliner. The plane is now back in service with all US carriers, but Boeing will have to work vigorously to retain the trust of airlines and the flying public in regard to the Max family. Southwest was the latest carrier to do so when it resumed flights March 11. In addition to the flight control system at the center of both investigations, other reports identified concerns with the airliner's flight control computer, wiring and engines.Īirlines are now slowly adding the 737 Max back into their schedules. Apart from the human tragedy, it was a huge blow to Boeing's business, since the company has thousands of 737 Max orders on its books. The beleaguered aircraft was grounded worldwide on March 13, 2019, after two crashes, one in Indonesia in 2018 and the other in Ethiopia in 2019, that killed a combined total of 346 people. China, the world's second-largest market for commercial air traffic, is still prohibiting the plane from flying, however, and it hasn't indicated when it'll reverse course. As part of their decisions, aviation safety agencies in the US, Brazil, Canada, Australia, the UK, the European Union and elsewhere have ordered Boeing and airlines to make repairs to a flight control system blamed for the two crashes that led to the ban update operating manuals and increase pilot training. Two years after it was banned from flying passengers, the Boeing 737 Max has been cleared to return to the skies in much of the world.
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