ADDIS ABABA: The crew of the Ethiopian Airlines plane that crashed last month killing 157 people, repeatedly followed procedures recommended by Boeing, but were unable to regain control of the jet, the Ethiopian transport minister said on Thursday (Apr 4).
"The crew performed all the procedures repeatedly provided by the manufacturer but was not able to control the aircraft," said Dagmawit Moges, unveiling results of the preliminary probe into the crash.
She said the report recommends "the aircraft flight control system shall be reviewed by the manufacturer."
"Aviation authorities shall verify that the review of the aircraft flight control system has been adequately addressed by the manufacturer before the release of the aircraft for operations".
Dagmawit did not make specific reference to the automatic anti-stalling system which has been implicated in the crash, but did mention a "repetitive nose down" movement of the aircraft.
The Maneuvering Characteristics Augmentation System (MCAS) is designed to automatically lower the aircraft's nose if it detects a stall or loss of airspeed.
Families of the victims, regulators and travellers around the world are waiting for clues to the accident after the new Boeing jet crashed six minutes after take-off.
A Lion Air 737 MAX 8 crashed just five months earlier in Indonesia killing all 189 aboard.
The preliminary report into the Lion Air disaster said the pilots lost control after grappling with the plane’s MCAS software that repeatedly lowered the nose of the aircraft based on faulty data from a sensor.