An Air Canada Boeing Co 737-8 Max en route among Arizona and Montreal with a few crew associates on board experienced an engine problem that forced the crew to divert the plane to Tucson, Arizona, the Canadian airline organization said in an emailed assertion on Friday.

Soon just after the take-off, the pilots gained an “engine indication” and “resolved to shut down one particular motor,” an Air Canada spokesman explained.

“The plane then diverted to Tucson, where it landed usually and stays.” The incident took put on Dec. 22.

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The crew obtained a still left motor hydraulic lower strain indicator and declared a PAN PAN unexpected emergency right before diverting the flight, Belgian aviation news internet site reported.

“Modern aircraft are made to operate with a single motor and our crews train for these types of operations”, the Air Canada statement extra.

In a reaction to a Reuters request for remark, a Boeing spokeswoman referred to Air Canada for details on the incident and did not supply any further comment.

Boeing and operators are bracing for heightened scrutiny as the MAX returns from a 20 month protection grounding, but protection experts say this sort of glitches are common and ordinarily go unnoticed.

The Max was grounded all over the world in March 2019 soon after a Lion Air crash in Oct 2018 in Indonesia killed 189 people and was followed 5 months later on by an Ethiopian Airlines crash, soon following takeoff, that caused the loss of life of all 157 people today aboard.

Each crashes joined in aspect to flawed cockpit software package. The engines have been not implicated.

The United States lifted a 20-month-old flight ban on the Max very last month, with the U.S. Federal Aviation Administration outlining particulars of the software package, program and schooling updates Boeing and airways need to finish just before carrying travellers.