The report, based on flight data and cockpit voice recorders on the Boeing 737 Max 8, was not released in full. Ethiopian investigators did not specifically mention the MCAS, but recommended that Boeing review "the aircraft flight control system related to the flight controllability." What also isn't clear is whether the Ethiopian pilots followed Boeing's recommendations to the letter in dealing with the system repeatedly pointing the nose down. Boeing's procedures instruct pilots to leave the MCAS system disconnected and continue flying manually for the rest of the flight. The question is whether the Boeing 737 Max should have been grounded after the Lion Air crash and before the Ethiopian Airlines crash," said Hasse.
