The Ethiopian Airlines pilot whose jet crashed killing 157 people had reported internal control problems, the firm said on Wednesday, as it prepared to send the black boxes to Europe from a disaster that has rocked the global aviation industry.
"A Boeing technical team will be travelling to the crash site to provide technical assistance under the direction of the Ethiopia Accident Investigation Bureau and US National Transportation Safety Board", a statement released on Sunday read.
Investigators from Ethiopia and other countries, including the United States, are looking into what caused the aircraft, a Boeing 737 MAX 8, to crash.
Further, the Directorate General of Civil Aviation (DGCA) also announced that 737 MAX 8 aircraft will be grounded with immediate effect until appropriate modifications and safety measures are undertaken to ensure their safe operations. The same type of plane also crashed shortly after takeoff in October in Indonesia.
Boeing says it plans to update the software in coming weeks.
US and Ethiopian aviation safety officials discussed on Tuesday whether the flight data and cockpit voice recorders from Ethiopian Airlines flight 302, which crashed on Sunday on a flight to Nairobi, would go to Washington or London for download and analysis.
"He was having difficulties with the flight control of the airplane, so he asked to return back to base", he said.
He said he was put onto the next flight to Nairobi and only found out about the crash later on.
Many other countries are choosing to wait until a full investigation is complete before making a decision to suspend MAX 8 flights, however, a great portion of those countries claim they are ready to act immediately to remove these aircrafts if new information emerges indication there is a problem. And Nikki Haley, Trump's former United Nations ambassador, has been nominated to join Boeing's board.
With the FAA increasingly alone in backing Boeing's jetliner, those questions include speculation about whether Boeing executives may have tried to influence the Trump administration in an effort to tamp down safety concerns about the 737 Max 8 - the fastest-selling plane in Boeing's history, with more than 5,000 ordered. "The pilots were well briefed on the air ordinance filed", he said.
They all had one thing in common, he said, "a spirit to serve the people of the world and to make it a better place for us all".
But October's Lion Air crash in Indonesia sparked a debate on automation, particularly over a software system created to push the plane down to stop a stall during flight.