No fatalities

Low-level impact with water surface during instrument training exercise (6057)

Stoney Lake, CanadaFlight

On June 14, 1940, an Avro 652 Anson (registration 6057) operated by Royal Canadian Air Force - RCAF was involved in an aviation accident near Stoney Lake, Canada in flight. No fatalities were reported. Investigators recorded the probable cause as: The pilot's error in judgment regarding altitude and unauthorized low-level flying over the water surface led to the impact. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-08-04Data APIEditorial standards

A military trainer aircraft struck the water surface while descending too low over Stoney Lake after an instrument flight practice session. Both occupants escaped without injury.

What happened

The incident occurred during an advanced training mission involving a practice instrument flying exercise. The aircraft departed from RCAF Camp Borden and proceeded toward Stoney Lake. While operating over the water, the pilot descended to an altitude that was too low for safe maneuvering. This resulted in the airplane impacting the water surface and crashing. Both individuals on board were able to escape the wreckage and sustained no injuries.

Findings

The official investigation identified specific operational errors as the primary factors leading to the accident. The pilot made a judgment error by approaching the water surface too closely before attempting to level off the aircraft. Additionally, the crew was conducting low-level flying over Stoney Lake without proper authorization for such maneuvers.

Probable cause

The pilot's error in judgment regarding altitude and unauthorized low-level flying over the water surface led to the impact.