WestJet has issued a 72-hour lockout notice to the union representing the airline’s maintenance engineers and mechanics. Work stoppage could set in as early as Tuesday, unless a deal is reached.

Last week, the Aircraft Mechanics Fraternal Association announced that members would begin taking a strike vote on May 2, and it would last until May 9.

Diederik Pen, President of WestJet Airline and Group Chief Operating Officer, says the company is “unwaveringly committed to reaching an agreement to prevent travel disruption, however, we are equally prepared to protect the travel plans of our guests and to provide long-term stability and security for all employees at the WestJet Group.”

WestJet and the AMFA have been negotiating a new contract since September 2023.

WestJet states that issuing a 72-hour lockout notice does not mean travel disruption will occur, but actions will need to be taken in the coming days to manage the impacts as much as possible. These include reducing flight schedules, managing changes and cancellations, and providing flexible change and cancel options for those wishing to make alternative arrangements.