The ground stop affected all flights operated under the WestJet livery and the airlines' regional unit, WestJet Encore.Jeff McIntosh/The Canadian Press
WestJet Airlines said on Tuesday a return to normal operations was underway after a temporary system outage had forced the Canadian carrier to briefly halt all departures.
Earlier in the day, the airline, owned by Onex Corp, requested the U.S. Federal Aviation Administration for a ground stop that affected the flights operated under the WestJet livery and its regional unit, WestJet Encore.
A ground stop is an air traffic control measure that temporarily halts flights from departing for a specific airport or region, usually due to safety, weather, or operational issues.
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The system outage delayed the handover of aircraft from maintenance personnel for scheduled operations, the airline said in a statement to Reuters.
“WestJet expedited efforts to resolve the technological issue and a return to normal operations is underway,” it said.