Ka 4 Vorfall in Fricktal Schupfart: Pilot verliert Kontrolle beim Anflug

Fricktal Schupfart Flugplatz (LSZI), Switzerland Alexander Schleicher Ka 4 Rhönlerche II

Am 8. September 1973 endete eine Flugausbildungssitzung auf dem Flugplatz Fricktal Schupfart in einem Vorfall mit einer Alexander Schleicher Ka 4 Rhönlerche II. Während eines Alleinflugs verlor der in Ausbildung befindliche Pilot beim Endanflug die Kontrolle über das Segelflugzeug. Der Segler ging in einen steilen Sturzflug über und kollidierte anschließend mit zwei Bäumen, bevor er etwa 300 Meter östlich der Landebahn abstürzte. Der Pilot erlitt schwere Verletzungen, und das Flugzeug wurde zerstört. Die Untersuchung deutete auf eine mögliche Bewusstseinsstörung als Ursache für den Kontrollverlust hin.

  1. Solo training approach: During the second solo training flight, the student pilot flew a normal pattern and turned onto final approach after completing the assigned circling exercises.
  2. Onset of dive: At about 90 m above ground on final approach, the glider unexpectedly pitched into a steep dive.
  3. Pilot consciousness issue: Investigators concluded the unusual maneuver sequence was likely due to an unrecognized disturbance of the pilot’s consciousness, leading to loss of effective control.
  4. Uncontrolled inverted flight: From the steep dive the glider rolled into inverted flight, then continued into an inverted climbing attitude before rolling off to the right.
  5. Collision with trees: While descending out of the uncontrolled attitude, the glider struck two trees approximately 300 meters east of runway 26.
  6. Crash - serious injury: Following the tree strikes, the glider impacted the ground and was destroyed, and the pilot sustained serious injuries.
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