The aircraft manufacturer Boeing addresses further questions about the safety of his 737 Max 8 jet while Ethiopian airlines have joined the airlines in China and elsewhere in founding the aircraft after a crash on Sunday that killed all 157 people on board.
The Ethiopian airline announced on Monday that the flight deck recorder and digital flight data recorder were both recovered from the wreck of the flight ET302, which means that the cause of the crash could soon be determined.
The plane crashed six minutes after taking off from Addis Ababa en route to Nairobi, plowing in a field near the village of Tulu Fara, outside the town of Bishoftu, 40 miles south-east of the Ethiopian capital.
Boeing's shares fell 13% in a few minutes from the opening of Wall Street on Monday morning. More than 300 Boeing 737 Max aircraft are operational and over 5,000 have been ordered worldwide since 2017.
The disaster was the second to involve the new 737 Max 8 in the last four months. In October, a Lion Air plane crashed into the sea off the Indonesian capital, Jakarta, killing 189 people on board.
Aviation experts, Chinese regulators and interested passengers emphasized the fact that both incidents concerned models that had only been in service for a short time.
Mary Schiavo, a former inspector general of the United States Department of Transportation, told CNN that the last disaster was "highly suspect" and "sounds alarm bells in the aviation industry, because this does not happen ".
Provisional flight data from the tracking site FlightRadar24 suggested that the ET302 flight rose irregularly in the short time it was in flight. The pilot of the aircraft, as in the case of Lion Air, reported difficulties in air traffic controllers immediately after take-off and asked for permission to go back, Ethiopian Airlines said.
The airline, the largest African airline, has announced that it would take its 737 Max planes out of service. Last Monday, the Chinese civil aviation administration ordered the country's airlines to straighten out their jet Boeing 737 Max 8 "in consideration of the fact that the two plane crashes were just delivered to the Boeing 737-8 aircraft" and had "some similarities".
About 60 Boeing 737 Max 8 aircraft have been delivered to about a dozen Chinese airlines since the boat was launched. On Monday, two Chinese airlines reported to the Guardian that they had started using the Boeing 737-800 instead of the Max 8.
Cayman Airways, which also flies on the Boeing 737 Max 8, has announced that this too would have entrenched the planes while an investigation of the accident was taking place. The president and CEO of Cayman Airways, Fabian Whorms, said that the airline "put the safety of passengers and crew first".
The passengers of British Airways flights in Africa could fly on the same model, with the first of eight new 737 Max 8 aircraft entered service last month.
Although BA has said that it has not operated Max 8s in its fleet, it is franchised an African airline, Comair, which flies with the model in livery BA from Johannesburg in all of South Africa, including Zimbabwe and Mozambique. A spokesman for Comair said he did not intend to stop operating the plane.
The tour operator Tui Airways ordered 32 Max aircraft as part of a fleet review and took delivery of its first Max 8 in December. Tui was the first airline registered in the UK to receive one of the new Boeing aircraft and plans to launch its orders over the next five years.
Several airlines told the Guardian that they did not intend to base their flights, including Fiji Airways which claimed to have "full confidence in the airworthiness of our fleet".
Singapore Airlines, which has five Boeing 737 Max 8 aircraft in the fleet of its regional carrier SilkAir and another 31 in firm, said it had not founded the aircraft and "continued to closely monitor the situation".
Other airlines that ordered the Boeing 737 Max 8 aircraft but have yet to receive delivery of them, including Virgin Australia and Air Niugini, said they did not intend to change their order and it was too early to comment in this phase.
Boeing said Sunday was canceling an event in Seattle to show off its new 777X airliner scheduled for Wednesday.
On Sunday, Alvin Lie, an aviation expert and an official at the Indonesian Ombudsman's office, told the Jakarta Post that the Indonesian government should root all Boeing 737 Max 8 "planes to avoid further incidents." Indonesia has two airlines that use airplanes: Garuda Airlines and Lion Air.
The victims of the Ethiopian Airlines flight came from at least 32 countries. The largest number came from Kenya. Among the dead there were 22 UN members, many headed to a United Nations Environment Program assembly in Nairobi.
On Monday morning, the delegates paid tribute to the victims for a moment of silence at the inauguration of the assembly. "We have lost fellow delegates, interpreters and UN personnel," said the president of the assembly, Siim Kiisler, minister of the environment of Estonia. "I express my condolences to those who lost their loved ones in the crash."