Accident Summary
On 17 August 2014 at 16:16 local time, a Bücker Bü 131 APM aircraft with registration HB-UUM was involved in a landing accident at Speck-Fehraltorf airfield (LSZK). The flight was a private VFR passenger flight from Locarno. The pilot, a Swiss citizen born in 1966, held a commercial pilot license (CPL(A)) with a total of 1165 flight hours, including 10 hours in the last 90 days and 118 hours on the accident type (10 hours in the last 90 days).
Sequence of Events
After the flight from Locarno, the pilot joined the airport traffic pattern for an approach to runway 30. Before initiating a glissade (slip) on final approach, the pilot checked the windsock, which indicated an estimated wind of about 4 knots from the west. The approach speed at the gate was rather low under the circumstances, and the pilot began the flare too high. Within the first third of the runway, at a height of approximately one meter above ground, the aircraft broke sideways over the right wing and subsequently struck the runway with the right wheel. This resulted in a collapse onto the forward fuselage structure.
Damage and Injuries
The aircraft sustained crumpled fuselage structure. The pilot and the single passenger were either slightly injured or uninjured; no third-party damage occurred. After landing, the pilot was able to taxi back to the apron. No persons were harmed.
Registration and Operator
The aircraft was owned by the Verein für Exotic and Antique Flying Machines, based in Rümlang, and operated by the same organization. The registration HB-UUM was noted.
Investigation Status
This summary report was prepared by the Swiss Accident Investigation Board (SUST) for information purposes only, without a formal investigation. The report is based on available statements.