Edmonton, Canada police are investigating a near miss involving an unidentified unmanned aerial vehicle (UAV), or drone, and a WestJet Encore Q400 twin turboprop on approach to Edmonton International Airport July 31.

According to Transport Canada, the airplane was descending through 6,500 ft., nine miles from the airport when pilots spotted “a white drone of undetermined size” off their left wing.

In an Aug. 1 release, the EPS said it was notified of the incident by officials with air navigation service provider Nav Canada. The airliner was on approach “when the near-miss with the pallet-size drone occurred,” police said. No further information was available regarding the incident investigation.

According to the airline, WestJet Encore flight 3362 was arriving from Fort McMurray, Alberta, at around 5:15 p.m. local time when pilots saw the drone at about 2,000 ft. below the left wing. WestJet did not provide the number of passengers and crew on the Q400, which has capacity for 78 passengers.

“Our flight crew continued their approach without incident or impact to operations as they determined there was no risk to the aircraft, guests or crew,” the airline said in a statement.

Canada’s “Interim Order Respecting the Use of Model Aircraft” prohibits drone hobbyists from flying within 5.6 km (3.5 miles) of an airport, seaplane base or areas where aircraft take off and land. The rule also prohibits recreational drone flights above 90 m (300 ft.) and within controlled airspace. Operators found to be in violation of the flight conditions are subject to fines of up to $3,000.

Interfering with another aircraft brings the possibility of other penalties. “Endangering the safety of an aircraft is a serious offense,” Transport Canada said. “Anyone who violates the regulations could be subject to additional fines of up to $25,000 and/or prison. This applies to drones of any size, used for any purpose.”

Bill Carey, bill.carey@aviationweek.com