Ethiopia said Boeing must review the "controllability" of the 737 MAX 8 aircraft model and that aviation authorities should verify the flight control system was "adequately addressed" by the U.S. plane manufacturer.
A Boeing 737 Max 8 plane killed all 157 people on board on March 10 just minutes into its flight from Addis Ababa to Nairobi. Speaking at a press conference Thursday, the Ethiopian Transport Minister, Dagmawit Moges, detailed a preliminary report into the crash and said she expected a final report within a year.
Boeing and the U.S. Federal Aviation Authority have suggested that the crash may have been avoided had pilots simply followed established safety procedures.
Moges outlined to reporters that the plane was deemed "airworthy" at take-off, the take-off itself was normal and the crew "performed all the procedures provided by the manufacturer but was not able to control the aircraft."
The minister said the preliminary review recommended that Boeing should review the aircraft control systems of the 737 Max 8 before releasing the aircraft to operators. And that authorities should investigate if the flight control system was properly reviewed before that plane is released back to airlines.
Moges added that the investigation of the crash was not about blame but was about ensuring air safety.
Ethiopia Airlines released a statement on Twitter acknowledging the report and suggesting that it clearly showed that pilots were not to blame.