Ethiopian Transport Minister Dagmawit Mugis said today, presenting the first report on the crash of an Ethiopian airliner, that the pilot and his assistant had followed the instructions before the crash of the Boeing 8 "last month.

The initial report - announced by Mugis - raised further doubts about the control system used in Boeing 8 Max, which was banned from flying around the world.

"The crew has repeatedly carried out all recommended actions from the manufacturer, but it has not been able to control the aircraft," the minister said.

"The aviation authorities must prove that the flight control system of the aircraft has been adequately dealt with before the factory starts operating the aircraft," she said.

The report came after the US Federal Aviation Administration announced the revision of the MECA license on the 737Max 8 aircraft.

The Ethiopian Boeing 737 Max 8 crashed on a clear morning on 10 March after taking off six minutes from Addis Ababa to Nairobi, killing all eight passengers and crew.

Families of the 157 victims from more than 30 countries - regulators and travelers around the world - await information about the accident after the plane crashed six minutes after taking off.

Non-falling system
The circumstances of the downing of the Ethiopian plane and those surrounding the fall of the Boeing 737 Max 8 of the Indonesian Lion Air in the waters of Java, killing 189 people on board in late October.

The MCA system was designed to reduce the front of the aircraft if it detected a slowdown or loss of speed, the focus of current scrutiny by Boeing and the US authorities concerned.

Minister Mugis did not speak of the automated system to prevent the fall during the flight (MCIS), which is believed to be crash-related, but said there was a "repeat" of the "steering" plane "down".

Boeing issued a memorandum of principles to overcome system problems after the Indonesian plane crash.

The Wall Street Journal reported on Wednesday that the pilots had closed the fall prevention system before re-operating it after failing to control the plane, quoting officials familiar with the initial facts.

The minister did not give details of what took place in the cockpit in the critical minutes and the last fatal but indicated that the takeoff "seemed very natural" and that all members of the crew have the qualifications required to operate the aircraft.

The head of the investigation bureau in the accident, Emdeo Ileo, said the full investigation could take six months to a year. "This year we will analyze whether there are other problems in this plane," he said.

Proud of pilots
"We are proud of our pilots 'commitment to following emergency procedures and very high professional performance in such difficult situations," said Ethiopian Airlines President Tewelde Jabri Meriam, who is proud of the pilots' attempts to save the plane from the crash.

In an attempt to polish its image, Boeing on Wednesday published pictures of its chief executive during a test flight of the 737 Max aircraft after the modernization of the fall prevention system.

Last week, the giant company brought together reporters, officials and pilots from several US airlines to make a presentation on the proposed amendments to the controversial system, chiefly the system's failure to make any adjustments when pilots try to regain control.

The airline is seeking approval from the Federal Aviation Administration (FAA) for its modifications to allow the aircraft to fly again.

But the body, which was widely criticized during a congressional hearing over its oversight of Boeing, said it expected Pyong to submit the proposed amendment "in the coming weeks" after further work.

The agency said Monday that Boeing needs to do more work on the proposed reform before submitting it for review.