No fatalities

Seaplane Overturns During Takeoff Attempt Near Washago (CF-OAV)

Washago, CanadaTakeoff (climb)

On May 27, 1948, a Stinson SR-9 Reliant (registration CF-OAV) operated by Ontario Provincial Air Service was involved in an aviation accident near Washago, Canada during takeoff. No fatalities were reported. Investigators recorded the probable cause as: The aircraft overturned after a wing dug into the water surface during the takeoff roll. 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 2026-08-05Data APIEditorial standards

A seaplane overturned while attempting to take off from the Severn River near Washago, resulting in no injuries but total loss of the aircraft.

What happened

During a takeoff attempt from the waters of the Severn River near Washago, the aircraft experienced a mechanical or operational issue involving one of its wings. The wing dug into the water surface, which disrupted the lift and stability required for departure. This action caused the plane to lose control and overturn in the river. The impact resulted in significant structural damage to the airframe.

Findings

The investigation into the incident confirmed that the primary event leading to the crash was the wing digging during the initial phase of takeoff. Although the aircraft sustained damage beyond repair, rendering it a total loss, there were no casualties among those on board.

Probable cause

The aircraft overturned after a wing dug into the water surface during the takeoff roll.