SZD-22A Außenlandung bei Lyss führt zu schweren Verletzungen des Piloten

Am 21. Juni 1969 erlebte eine SZD-22A eine Außenlandung in der Nähe von Lyss, Schweiz. Der Pilot versuchte eine Außenlandung auf einem Feld, das er zuvor besichtigt, aber noch nie zur Landung genutzt hatte. Während des Anflugs geriet das Segelflugzeug ins Überziehen, als der Pilot eine Korrekturkurve zur Höhenreduzierung ausführte, was zu einem Absturz führte. Der Pilot erlitt schwere Verletzungen und das Flugzeug wurde zerstört. Die Untersuchung bestätigte, dass der Unfall auf die ungeeignete Geländewahl und das Versäumnis, die Mindestgeschwindigkeit in der Kurve zu halten, zurückzuführen war.

1. Aerotow cross-country: The pilot aerotowed from Courtelary for a cross-country flight with the personal intention of performing his first off-airfield outlanding in a pre-selected field near his home.
2. Inadequate preparation: The pilot did not obtain specific meteorological or route information, did not brief club staff about the planned outlanding, and chose a marginal field with a downslope approach and trees at the far end for his first off-field landing.
3. High approach to field: After a normal cross-country and descent over Lyss, the pilot entered the intended landing area still relatively high and continued to lose height with turns, joining the final approach too high for the lower-lying field.
4. High on short final: On short final at about 20 m above ground, the pilot realized he was still too high and feared overshooting into the trees at the end of the chosen field.
5. 360° turn at low height: To lose excess height, the pilot retracted the airbrakes and initiated a relatively flat 360° left turn at approximately 20 m above ground instead of using safer height-loss techniques.
6. Low-speed stall in turn: During the low-altitude left turn, the glider stalled and pitched forward despite the pilot’s control inputs, leading to an unrecoverable loss of control close to the ground.
7. Crash - serious injury: The glider impacted the ground about 20 m short and 150 m left of the intended touchdown point, destroying the aircraft and seriously injuring the pilot.