An Air Canada Boeing Co 737-8 Max en route between Arizona and Montreal with three crew members on board suffered an engine issue that forced the crew to divert the aircraft to Tucson, Arizona, the Canadian airline company said in an emailed statement on Friday.

Shortly after the take-off, the pilots received an "engine indication" and "decided to shut down one engine," an Air Canada spokesman said.

"The aircraft then diverted to Tucson, where it landed normally and remains." The incident took place on Dec. 22.

The crew received a left engine hydraulic low pressure indication and declared a PAN PAN emergency before diverting the flight, Belgian aviation news website Aviation24.be reported.

Boeing did not immediately respond to a Reuters request for comment on Friday.

The United States lifted a 20-month-old flight ban on the 737 MAX last month, with the U.S. Federal Aviation Administration outlining details of the software, system and training upgrades Boeing and airlines must complete before carrying passengers.