Civil aviation authorities and airlines have grounded more than 40 per cent of the world's in-service fleet of Boeing 737 Max 8s — the type of jet involved in an Ethiopian Airlines crash that killed 157 people, including 18 Canadians.

But even after the entire European Union, Australia and others decided to suspend the jet from their airspace Tuesday, Transport Minister Marc Garneau reiterated that Canada has no plans to follow suit.

The U.S. is also allowing the jet to continue to fly.

On Tuesday evening, the Federal Aviation Administration's acting administrator Dan Elwell said its "review shows no systemic performance issues and provides no basis to order grounding the aircraft." He added that no foreign civil aviation authorities have "provided data to us that would warrant action."

Grounded across Europe

Sunday's disaster — following another fatal crash of a 737 Max 8 jet in Indonesia five months ago — has caused alarm in the international aviation industry and wiped billions of dollars off the market value of the world's biggest plane-maker.

Earlier Tuesday, the European Aviation Safety Agency (EASA) issued a directive grounding all Boeing 737 Max 8 and 9 model aircraft following two recent deadly crashes. The grounding applies to all European Union airspace, plus that of Norway, Switzerland, Iceland, and Liechtenstein.

EASA said in its emergency airworthiness directive that "at this early stage" of the most recent investigation, "it cannot be excluded that similar causes may have contributed to both events."

It said "based on all available information, EASA considers that further actions may be necessary to ensure the continued airworthiness of the two affected models."

A makeshift memorial of flowers at the site of the Ethiopian Airlines near Addis Ababa, Ethiopia. (Sylvia Thomson/CBC)

The United Arab Emirates, Malaysia, Australia, New Zealand, Singapore and Oman also joined the list of countries that have banned all flights into or out of their countries.

Ethiopian Airlines and all Chinese airlines grounded their Max 8 planes indefinitely immediately after the crash Sunday. Ethiopian has four of the planes remaining in its fleet and was awaiting delivery of 25 more. China has 96 Max 8 jets in service.

Indonesia also said Monday it grounded 11 of the aircraft for inspections. India followed on Tuesday, grounding the 737 Max until "appropriate modifications and safety measures are undertaken to ensure their safe operations," according to a Ministry of Civil Aviation tweet.

As of Tuesday, many individual airlines had also temporarily suspended operation of their Max 8s:

Ethiopian women and children watch the cleanup at the crash site. (Sylvia Thomson/CBC News)

Still, Canada and the U.S., said they would keep flying the Max 8.

Garneau said Monday it would be "premature" to ground all 41 of the planes currently owned by the country's air carriers and said he would "without any hesitation" fly on a Max 8.

On Tuesday, he again said there were no plans to suspend operation of the Max 8 in Canada, but "all options are on the table." Canada is working with the FAA to determine if action is required.

Garneau tweeted that he would be meeting with his civil aviation expert panel during the day. His office said the minister will speak to the media Wednesday morning about the Boeing 737 Max 8 and aviation safety.

I've canceled all my meetings and public events today in order to meet with my Civil Aviation Expert Panel. All evidence is being evaluated in real time and we're considering all potential actions. —@MarcGarneau

Canada's two largest airlines say they are confident in the safety of the aircraft.

Air Canada said its 24 Max 8 aircraft have performed "excellently" and met safety and reliability standards.

Calgary-based WestJet said it is "working with Boeing to ensure the continued safe operation of our Max fleet," which includes 13 Max 8s.

The union representing Air Canada flight attendants sent out a statement Tuesday afternoon, saying they don't want to be forced to fly on the Boeing 737 Max 8.

The Air Canada component of CUPE is calling on the airline to "at a minimum continue to offer reassignment to crew members who do not want to fly on this type of airplane," says component president Wesley Lesosky. "The safety of passengers and crews must be the absolute priority."

Later, the WestJet component of CUPE issued a statement to its members saying it believes it is safe for its members to fly on the Max 8.

"Each of us on your Local 4070 executive are here to advocate for our safety and our right to come to work and operate in a safe environment," the statement from the executive reads. "At present we believe that going to work on any of WestJet's 121 Boeing 737 jets is safe."

Families wait for remains

Ethiopian Airlines Flight 302 came down in a field soon after takeoff from Addis Ababa on Sunday, creating a fireball in a crater. It may be weeks or months before all the victims are identified.

Black box recorders were found at the Ethiopian crash site on Monday, but it was unclear where they would be examined.

Boeing officials from the U.S. arrive at the site of the crash. (Sylvia Thomson/CBC)

As long as the recordings are undamaged, the cause of the crash could be identified quickly, although it typically takes a year to complete an investigation.

Given the problems identifying them at the charred disaster site, Ethiopia Airlines said it would take at least five days to start returning the remains to families.

"We are Muslim and have to bury our deceased immediately," Noordin Mohamed, a 27-year-old Kenyan businessman whose brother and mother died, told Reuters.

"Losing a brother and mother in the same day and not having their bodies to bury is very painful," he said in Nairobi, where the plane had been due.

Design changes

Safety experts say it is too early to speculate on what caused Sunday's crash or whether the two recent accidents are linked. Most accidents are caused by a unique chain of events combining human and technical factors.

Boeing has said it will deploy a software upgrade to the 737 Max 8.

The Boeing 737 Max 8 entered commercial use in 2017 and can carry up to 210 passengers. (Boeing)

Boeing said after October's Lion Air crash that it has for several months "been developing a flight control software enhancement for the 737 Max, designed to make an already safe aircraft even safer."

The software upgrade "will be deployed across the 737 Max fleet in the coming weeks," it said.

But the U.S.-based company said it has no reason to pull the aircraft from the skies, and it does not intend to issue new recommendations about the aircraft to customers.

Its technical team joined American, Israeli, United Arab Emirates, Kenyan and other aviation experts in the investigation led by Ethiopian authorities.

Workers prepare plastic bags in the search for body parts at the crash site. (Sylvia Thomson/CBC)

The FAA said it is overseeing some design changes to the aircraft, expected to be in place by April. The FAA also said it expects Boeing will soon complete improvements to an automated anti-stall system suspected of contributing to the deadly crash of another new Boeing 737 Max 8 in Indonesian waters in October, and update training requirements and related flight crew manuals.

Shares of Chicago-based Boeing slid almost 10 per cent in early trading on Monday. They ended the day down five per cent, halting a surge that has seen the value of the company's stock triple in just over three years to a record high of $446 US last week.