Ethiopian Airlines Boeing 737 pilots 'could not stop nosedive'
A preliminary report into the crash of an Ethiopian Airlines plane last month says the aircraft nosedived several times before it crashed.
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Despite their efforts, pilots "were not able to control the aircraft", Transport Minister Dagmawit Moges said.
Flight ET302 crashed after take-off from Addis Ababa, killing 157 people.
It was the second crash of a Boeing 737 Max aircraft in five months.
Last October, Lion Air flight JT 610 crashed into the sea near Indonesia killing all 189 people on board.
"The crew performed all the procedures repeatedly [that were] provided by the manufacturer but were not able to control the aircraft," Ms Dagmawit said in a news conference in Addis Ababa.
In a statement, the chief executive of Ethiopian Airlines, Tewolde GebreMariam, said he was "very proud" of the pilots' "high level of professional performance".
"It was very unfortunate they could not recover the
The 737 Max family of aircraft was grounded following the Ethiopian Airlines crash, a move affecting more than 300 aircraft.
Investigators have focused their attention on the Manoeuvring Characteristics Augmentation System (MCAS) - software designed to help prevent the 737 Max from stalling.
Boeing has been working on an upgrade of the MCAS software since the Lion Air crash in October.
It has said the system can be disabled - allowing pilots to regain control if there appears to be a problem.
But the latest comments from Ethiopian officials suggest that pilots could not regain control, despite following procedures recommended by Boeing.
The preliminary report from Ethiopian authorities did not attribute blame for the crash and did not give
But it did suggest that Boeing review the aircraft control system and said aviation authorities should confirm the problem had been solved before allowing the 737 Max back into the air.
credit: https://www.bbc.com/news/business-47812225BBC