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Aircraft stall and crash at Sacacomie Lake (CF-BDF)

Sacacomie Lake, CanadaLanding (descent or approach)

On September 7, 1977, a Noorduyn Norseman (registration CF-BDF) operated by Ron Proulx was involved in an aviation accident near Sacacomie Lake, Canada during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: The aircraft entered a stall while executing a turn toward the final approach. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-12Data APIEditorial standards

An aircraft experienced a stall during a turn to final approach, resulting in a crash on Sacacomie Lake with no injuries reported.

What happened

During an approach toward the final phase of flight, an aircraft entered a stall while performing a maneuver to turn onto the final approach path. The incident occurred over the surface of Sacacomie Lake, which was noted as having glassy water conditions at the time. The impact with the water resulted in the aircraft being damaged beyond repair.

Despite the severity of the impact and the destruction of the airframe, there were no casualties. The pilot and all passengers on board escaped the wreckage uninjured.

Findings

  • The aircraft lost lift during a turning maneuver, leading to an aerodynamic stall.
  • The flight was occurring over the surface of Sacacomie Lake.

Probable cause

The aircraft entered a stall while executing a turn toward the final approach.

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