Puchacz fängt Trudeln knapp über Grund ab und überzieht erneut
Beide Insassen einer SZD-50-3 Puchacz kamen ums Leben, das Segelflugzeug wurde zerstört, als es auf einem Schulflug in den Boden trudelte. Nach einem ersten Trudeln über sieben bis acht Umdrehungen fing es knapp über Grund ab, unterschritt aber beim Überfliegen eines Bahndamms in ~10 m erneut die Mindestfahrt, kippte über den linken Flügel und schlug fast senkrecht auf. Warum es zuerst trudelte, blieb offen, und das Abfangen kam sehr spät; die linke Trimmklappen-Betätigung war wohl lose oder verstellt, und beide Piloten hatten voll rechtes Seitenruder gegen die Linksdrehung getreten. Der unmittelbare Faktor war zu wenig Fahrt in Bodennähe.
- Aerotow for a training flight: An SZD-50-3 Puchacz with an instructor and student aboard was aerotowed from Schaffhausen for a training flight and released at about 900 m over Siblingen.
- Developed spin, 7-8 turns: The flight path after release is unknown; about 18 minutes later witnesses saw the glider in a spin, making seven or eight rotations. Why it entered the spin could not be established.
- Left trim control probably loose: The only anomaly found on the wreck was the left trim-tab control, apparently loose or maladjusted before the accident; a wrong trim setting could not be ruled out.
- Very late recovery near the ground: The spin stopped only after several turns, just above the ground — an unusually late recovery. Both pilots were found with right rudder pushed fully against the rotation.
- Second stall over the embankment: Forced to clear a railway embankment at about 10 m AGL, the glider again dropped below the minimum flying speed and rolled off over the left wing.
- Near-vertical impact, both killed: The glider struck the ground almost vertically at very low forward speed in a left bank. The student died at impact, the instructor the same day; the accident was not survivable.