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Boeing explains its 737 Max software update
Boeing has detailed its promised software update for 737 Max jets, and it largely matches up with the rumored safety improvements that could reduce the likelihood of a crash. The anti-stall Maneuvering Characteristics Augmentation System (MCAS) will now compare the data from both of the 737's angle-of-attack sensors, rather than relying on one. If there's a disagreement of 5.5 degrees or more, MCAS won't kick in. The software will also reduce its input during an incident, and won't apply so much input to the stabilizers that the crew can't counteract it.
FAA 'tentatively' approves software fix for 737 Max jets
Boeing may be close to delivering its fix for the 737 Max's anti-stall system and preventing future tragedies. The Wall Street Journal has learned through documents and sources that the FAA has "tentatively" greenlit software and training updates pending some final simulation and real-world flight tests. They could make their way to airlines within a few weeks, according to the insiders, although there's still the possibility of last-minute revisions and changes to the timeline.
Boeing sold essential safety features as extras on 737 Max
Boeing charged airlines extra for two safety features that may have been able to detect in advance issues with the 737 Max planes involved in fatal crashes, according to the New York Times. The additional sensors provided checks on data collected by sensors on the planes and could have alerted pilots to potential issues. Boeing will now make one of those safety add-ons standard issue on the 737 Max.
Report: Boeing's crucial 737 Max safety analysis was flawed
Boeing's original 737 Max safety analysis, used by the FAA to certify the aircraft, may have had several serious flaws, according to a report from the Seattle Times. The problems revolved around a software system called MCAS, suspected to have contributed to the Lion Air and Air Ethiopia crashes that killed 346 people in total. Investigators are also looking at possible maintenance lapses and potential pilot error. The situation may have been compounded by FAA rules that allow aircraft manufacturers to do some of the certification themselves.
US grounds all Boeing 737 Max planes
Less than one day after expressing confidence in Boeing's 737 Max fleet, the US government has decided to ground the plane involved in two recent crashes. According to CNBC, President Trump told reporters that the US was issuing an emergency order to ground both Boeing's 737 Max 8 and 737 Max 9 aircraft, following similar prohibitions in the UK, France, Germany, Australia, Indonesia, China and elsewhere. Trump made the decision in concert with FAA acting director Daniel Elwell and US transportation secretary Elaine Chao and had spoke with Boeing CEO about the move as well. "They are all in agreement with the action," he said. "Any plane currently in the air will go to its destination and thereafter be grounded until further notice."
Boeing will release software updates for 737 Max jets by April
Following two air disasters months apart, Boeing has promised to release software updates for all of its Boeing 737 Max aircraft by next month at the latest. The updates were developed in the aftermath of the Lion Air Flight 610 disaster that killed 189 people, the company said, and include changes to flight control systems, pilot displays, operation manuals and crew training.
