On Wednesday, the Federal Aviation Administration ordered all Boeing 737 Max planes used by USA carriers grounded until safety concerns are addressed.
On Feb. 15, Air Canada forecast cost per available seat mile would rise 2.0-3.0 per cent in the first quarter of 2019, as well as the full year.
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.
The two flight recorders aboard the aircraft are being analysed in France.
The civil aviation safety agency noted that the work on the flight data recorder would resume the following day.
Several American pilots also reported issues with the MCAS and the FAA said it had ordered Boeing to issue a fix by April. Authorities are also said to have prohibited the use of the plane by local airlines.
This week, Boeing quietly unveiled its new 777X aircraft - set to be the longest passenger jet in the world.
In the meantime an Ethiopian delegation has reportedly joined investigators in France who are probing the cause of last Sunday's Ethiopian Airlines Crash.
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Thousands of miles away, distraught families were demanding answers as they visited the deep black crater where the plane smashed into a field outside the capital, disintegrating on impact. Already, some investigative information has leaked.
Jamaica and the United States (US) are among a growing number of countries that have banned the 737 Max 8 and 9 from flying in their air space.
US President Donald Trump told reporters the "safety of the American people and all peoples is our paramount concern".
It marked the second deadly crash in months involving the 737 Max, the newest and fastest-selling aircraft in Boeing's fleet.
Both planes flew with erratic altitude changes that could indicate the pilots struggled to control the aircraft.
In two anonymous reports on flights just after the Lion Air disaster, USA pilots disconnected the autopilot and corrected the plane's trajectory in response. Ethiopian Airlines says its pilots received special training on the software.
Air Canada and United Airlines on Friday became the first major carriers in North America to warn of negative financial implications to business as a effect of the grounding of the Boeing planes. Shortly after their takeoffs, both crews tried to return to the airports but crashed.