Buochs - Sion

The single engine aircraft was completing a flight from Buochs AFB to Sion, carrying to employees of the Federal Military Department and one pilot. While approaching the Finsteraarhorn mountain, the pilot encountered atmospheric turbulences and severe downdrafts when the aircraft went out of control and crashed on the mountain. All three occupants were killed.

Flight / Schedule

Buochs - Sion

Registration

V-621

MSN

647

Year of Manufacture

1967

Operator

Swiss Air Force

Date

April 27, 1993 at 09:01 AM

Type

CRASH

Flight Type

Military

Flight Phase

Flight

Crash Site

Mountains

Crash Location

Mt Finsteraarhorn Bern

Region

Europe • Switzerland

Coordinates

46.5387°, 8.1249°

Crash Cause

Weather

Narrative Report

On April 27, 1993 at 09:01 AM, Buochs - Sion experienced a crash involving Pilatus PC-6 (Porter & Turbo Porter), operated by Swiss Air Force, with the event recorded near Mt Finsteraarhorn Bern.

The flight was categorized as military and the reported phase was flight at a mountains crash site.

3 people were known to be on board, 3 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.

Crew on board: 1, crew fatalities: 1, passengers on board: 2, passenger fatalities: 2, other fatalities: 0.

The listed crash cause is weather. The single engine aircraft was completing a flight from Buochs AFB to Sion, carrying to employees of the Federal Military Department and one pilot. While approaching the Finsteraarhorn mountain, the pilot encountered atmospheric turbulences and severe downdrafts when the aircraft went out of control and crashed on the mountain. All three occupants were killed.

Aircraft reference details include registration V-621, MSN 647, year of manufacture 1967.

Geospatial coordinates for this crash are approximately 46.5387°, 8.1249°.

Fatalities

Total

3

Crew

1

Passengers

2

Other

0

Crash Summary

The single engine aircraft was completing a flight from Buochs AFB to Sion, carrying to employees of the Federal Military Department and one pilot. While approaching the Finsteraarhorn mountain, the pilot encountered atmospheric turbulences and severe downdrafts when the aircraft went out of control and crashed on the mountain. All three occupants were killed.

Cause: Weather

Occupants & Outcome

Crew On Board

1

Passengers On Board

2

Estimated Survivors

0

Fatality Rate

100.0%

Known people on board: 3

Operational Details

Schedule / Flight

Buochs - Sion

Operator

Swiss Air Force

Flight Type

Military

Flight Phase

Flight

Crash Site

Mountains

Region / Country

Europe • Switzerland

Aircraft Details

Registration

V-621

MSN

647

Year of Manufacture

1967