Hanriot HD.1 crash, Mar 22, 1922, Alp Riseten above Matt...
Hanriot HD.1 accident on March 22, 1922 near Alp Riseten above Matt Glarus, Switzerland with no fatalities. Cause: Loss of bearings in dense fog over...
- Date: March 22, 1922
- Aircraft: Hanriot HD.1
- Location: Alp Riseten above Matt Glarus, Switzerland
- Fatalities: 0
- Phase of flight: En route
- Cause: Loss of bearings in dense fog over the Alps
Swiss pilot Walter Mittelholzer, flying alone for Ad Astra Aero, was caught by dense fog over the Alps and lost his bearings. He crashed on a snowfield on the Alp Riseten above Matt and was seriously injured.