, according to initial analysis of the black boxes recovered from the wreckage of the March 10 disaster.Both planes were Boeing 737 MAX 8s, and both crashed minutes after take-off after pilots reported flight control problems. Concern over the plane's safety caused, wiping billions of dollars off Boeing's market value.
When investigators, after reviewing black box data, return to Addis Ababa and start conducting interpretive work, the NTSB and FAA will assist in verification and validation of the data, an official said. It is not unknown for the broad reasons for a crash to be understood in the hours after data has been recovered, but experts say fuller analysis is usually needed too.