An absence of data means investigators have been unable to determine the complete sequence of events that led to the crash of an ultralight plane and the death of its pilot last September, the Transportation Safety Board of Canada said in a report on the incident released Wednesday.

The crash occurred on Sept. 24 near Bobs Lake, north of Kingston. The pilot, whose name was not included in the report, was the only person in the ultralight at the time.

The report said the pilot of the Quad City Ultralight Challenger II had departed from a grass runway near Yarker, Ont., for a daytime flight to Westport/Rideau Lakes Aerodrome. When en route, a door opened and the pilot executed a precautionary landing in a field near Bobs Lake. He called the aircraft owner, who was waiting at the aerodrome, and requested assistance in repairing the door.

A couple of hours later, near 3:15 p.m., the plane took off again. Only a couple of minutes later, the engine was heard producing a sputtering sound and stopping, with the aircraft then crashing to the ground.

The report said there was no fire, but the aircraft was destroyed. There was no emergency locator transmitter on board, nor was one was required by legislation, it added.

Area residents made at least two 911 calls, and the crash site was located an hour later by a helicopter from the Joint Rescue Coordination Centre in Trenton.

The report said the ultralight’s engine was recovered and taken to a TSB wreckage examination facility in Richmond Hill, Ont. Examination of the engine, ignition and fuel system did not reveal any indications of mechanical failure.

The pilot held an ultralight aeroplane permit, had an instructor rating and had approximately 530 flight hours on ultralights, the report said, adding the investigation found no indication his performance was degraded by fatigue or other physiological issues.

Weather was not considered a factor.

The aircraft had been owned by several individuals and was last sold in August 2022. Its journey log indicated the aircraft had accumulated slightly over 80 hours before the crash.