As families wait for the results from the investigation into the cause of the crash, Ethiopian Airlines is planning to hold a service on Sunday in Addis Ababa, at the Kidist Selassie, or Holy Trinity Cathedral, where numerous country's past rulers are buried beneath its pink stone spires.
In the wake of the tragedy, which followed the similar deadly crash of Boeing 737 MAX in Indonesia in late October, aviation authorities and airlines around the world have either grounded their 737 MAX 8 series aircraft or closed their airspace to them.
A mass memorial service for the dead is planned in Addis Ababa to take place Sunday, one week after the crash.
The French air accident investigation agency BEA tweeted Saturday that technical work on the recorder began.
The grounding of the 737 MAX jets has had no immediate financial impact on airlines using the planes, but it will get painful for the industry the longer they do not fly, companies and analysts said on Friday.
The U.S. National Transportation Safety Board has sent about 16 members to assist the investigation, she said.
'Bomb cyclone' pushes east across the U.S., flood risks remain
A policeman talks to a driver as snow clogs the roads in Lone Tree, Colorado, U.S.in this March 13, 2019 handout photo . The National Weather Service says the intense weather might have peaked - but isn't letting up yet.
The New York Times reports that shortly before crashing, the 737 Max 8 plane erratically went up and down by hundreds of feet at an abnormally fast speed.
The aircraft's flight data recorder (FDR) and cockpit voice recorder (CVR), or black boxes as they are often called, have been recovered and investigators are hoping they will shed light on the tragedy.
Ethiopia's transport minister said on Saturday it may take "considerable time" for investigators to find the cause of the crash involving the new aeroplane.
Recovery work continues at the scene where the Ethiopian Airlines Boeing 737 Max 8 crashed near Bishoftu, south-east of Addis Ababa, in Ethiopia.
The US planemaker expects the US Federal Aviation Administration to approve design changes to the software "no later than April 2019". The pilot of that plane reported control problems.
In both crashes, pilots asked to return minutes into flight. On Wednesday, the Federal Aviation Administration ordered all Boeing 737 Max planes used by USA carriers grounded until safety concerns are addressed. Engineers are making changes to the system created to prevent an aerodynamic stall if sensors detect that the jet's nose is pointed too high and its speed is too slow.
Boeing plans to release upgraded software for the 737 MAX in a week to 10 days, sources familiar with the matter said.