Zone
Glarus

Crash of a Hanriot HD.1 on the Guldenstock

Date & Time: Mar 29, 1922
Type of aircraft:
Hanriot HD.1
Operator:
Registration:
CH-77
Flight Phase:
Flight
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Site:
Mountains
Location:
Toedi
Glarus
Country:
Switzerland
Region:
Europe
Crew on board:
1
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The pilot Walter Mittelholzer, sole on board, was flying overt the Swiss Alps when the aircraft impacted the slope of Mt Guldenstock/Tödi. The aircraft was destroyed and the pilot was rescued.
Probable cause:
Controlled flight into terrain.

Crash of a Savoia S.9 on Gliems Glacier: 2 killed

Date & Time: Sep 7, 1920 at 0847 LT
Type of aircraft:
Savoia S.9
Operator:
Flight Phase:
Flight
Flight Type:
Delivery
Survivors:
No
Site:
Mountains
YOM:
1920
Location:
Toedi
Glarus
Country:
Switzerland
Region:
Europe
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Circumstances:
The aircraft was on its way from Lake Maggiore to Finland while on a delivery flight with a crew of two on board. It departed Lake Maggiore in the early morning. While overflying the Alps, the aircraft went out of control and crashed on the Gliems Glacier, in the region of Toedi, Glarus. Both crew were killed and their bodies were transferred to Zurich were they were cremated four days later.
Crew:
Maj Välnö W. Mikkola, pilot
Lt Äly R. L. Durchman.
Probable cause:
According to Swiss Authorities, the accident was caused by the disintegration of the wooded propeller in flight due to a faulty gluing method during manufacturing by Savoia, due to sabotage.
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