1 fatality

Aircraft Crash in Lake Ontario Near Toronto City-Billy Bishop (C-GIRH)

Toronto City-Billy Bishop, CanadaLanding (descent or approach)

On January 12, 1987, a Britten-Norman Islander (registration C-GIRH) operated by Trillium Air was involved in an aviation accident near Toronto City-Billy Bishop, Canada during landing or approach. One person was killed. Investigators recorded the probable cause as: Engine failure for unknown reasons. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-11Data APIEditorial standards

An aircraft crashed into Lake Ontario after an engine failure during approach to Toronto City-Billy Bishop. The pilot died of hypothermia, and the other occupant was seriously injured.

Incident Overview During an approach to Toronto City-Billy Bishop, the pilot declared an emergency after experiencing an engine failure. While attempting to reach the airfield, the pilot lost control of the aircraft, which subsequently crashed into Lake Ontario approximately 5.6 kilometers southwest of the airport. ## Casualties Both occupants sustained serious injuries in the crash. The pilot died of hypothermia a few hours after the incident. ## Probable Cause The official investigation determined that the probable cause of the accident was an engine failure for unknown reasons. No specific aircraft type, registration, operator, or exact date was provided in the source material.