NTSB formally disputes Ethiopian report on the MAX crash:
Ethiopian Max Crash Report Made False Claims on 737, US Says (msn.com)
The US National Transportation Safety Board accused the Ethiopian Accident Investigation Bureau of making claims “unsupported by evidence” in conclusions belatedly published late last year.
“The final report does not provide any details to support the EAIB’s statements about the existence of an electrical problem,” the NTSB wrote on Tuesday.
US investigators said they agreed generally with Ethiopia’s findings that a flawed design in the 737 Max pushed the nose down automatically and was at least part of the cause of the March 10, 2019 crash that killed 157 people.
But the Ethiopians ignored numerous other factors, the NTSB said. In particular, the Ethiopian Airlines Group crew had been told how to counteract a failure of the flawed software known as Maneuvering Characteristics Augmentation System, or MCAS, after a crash off the coast of Indonesia about four months earlier. But they failed to follow the procedure, the NTSB said.
“This is unprecedented in our view,” NTSB Chairwoman Jennifer Homendy said in an interview. “They were not operating in good faith with ICAO rules and we feel that we have to be very public where we think there were inaccuracies in the report and where we think it could be more comprehensive.”