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Single-engine aircraft crash on Glacier des Audannes (HB-FAP)

Glacier des Audannes, SwitzerlandLanding (descent or approach)

On August 20, 1965, a Pilatus PC-6 (Porter & Turbo Porter) (registration HB-FAP) operated by Aéro-Club de Suisse (AéCS) was involved in an aviation accident near Glacier des Audannes, Switzerland during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: The cause of the aircraft crashing during its landing approach remains unidentified. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 5 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary report: the Swiss Transportation Safety Investigation Board (STSB / SUST)Updated 2026-06-14Data APIEditorial standards

A single-engine plane crashed while attempting to land on a glacier near Sion Airport, resulting in no injuries but total aircraft loss.

What happened

On an unspecified date, a single-engine aircraft was involved in an accident during the landing phase of flight. The aircraft struck the surface of the Glacier des Audannes, situated approximately 14 km north of Sion Airport.

Despite the impact, all eight occupants on board managed to exit the wreckage without sustaining any injuries. However, the structural damage to the plane was severe enough that the aircraft was declared a total loss.

Findings

  • The specific reason for the crash remains undetermined at this time.
  • The accident occurred during the landing sequence on a glacier.
  • The cause of the impact is currently unknown.

Probable cause

The cause of the aircraft crashing during its landing approach remains unidentified.

Related events

Same operator

Frequently asked questions

What happened in the 20 Aug 1965 Pilatus PC-6 (Porter & Turbo Porter) accident near Glacier des Audannes, Switzerland?

A single-engine plane crashed while attempting to land on a glacier near Sion Airport, resulting in no injuries but total aircraft loss.

Were there any fatalities in the 20 Aug 1965 Pilatus PC-6 (Porter & Turbo Porter) accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 20 Aug 1965 involved a Pilatus PC-6 (Porter & Turbo Porter), registration HB-FAP, operated by Aéro-Club de Suisse (AéCS), at Glacier des Audannes, Switzerland.

What was the probable cause of the accident?

The cause of the aircraft crashing during its landing approach remains unidentified.

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