Ka 4 Rhönlerche II Zwischenfall während der Ausbildung in der Nähe des Flugplatzes Schänis

Schänis Flugplatz (LSZX), Switzerland Alexander Schleicher Ka 4 Rhönlerche II

Am 14. August 1967 geriet ein Ausbildungsflug mit einer Alexander Schleicher Ka 4 Rhönlerche II in der Nähe des Flugplatzes Schänis in der Schweiz in Schwierigkeiten. Der Flugschüler mit begrenzter Flugerfahrung versuchte, zum Flugplatz zurückzukehren, konnte jedoch eine Stromleitung im Anflugsektor nicht überfliegen. Bei einer Rechtskurve, um das Hindernis zu vermeiden, geriet das Segelflugzeug in einen Strömungsabriss und stürzte aus geringer Höhe ab. Der Flugschüler erlitt leichte Verletzungen, und das Segelflugzeug wurde erheblich beschädigt. Der Vorfall verdeutlicht die Herausforderungen, denen man bei Außenlandungen in Ausbildungsszenarien begegnet.

  1. Aerotow training flight: A student pilot on a solo training flight launched by aerotow from Schänis for a local soaring flight with a maximum planned duration of 45 minutes.
  2. Instruction not followed: Contrary to his instructor’s briefing to release at 700 m above the airfield and end the hang flight by 500 m, the student released early at 600 m, leaving little time to find lift.
  3. Late decision to return: After failing to find lift and descending to about 350 m above the airfield near Ziegelbrücke, the student only then recognized he could not reach the airfield, which was too late for a safe return.
  4. Obstacle in approach path: On attempting to return toward Schänis, the student realized he no longer had sufficient height to overfly the high‑voltage power line crossing the approach sector to runway 35.
  5. Low-speed turn for outlanding: The student decided to outland in a field parallel to the power line and, flying at only about 50 km/h near minimum speed, initiated a right turn before the line.
  6. Stall in low turn: While starting the right turn, he pulled slightly on the control stick, the glider entered an over‑stalled condition, and it departed controlled flight by stalling over the right wing at very low height.
  7. Crash - minor injury: The glider impacted the ground at a steep angle during the attempted outlanding, sustaining substantial damage while the student pilot received only minor injuries.
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gliderincidents.com gathers and lists soaring incident reports from official sources. The sources are indicated and linked. These reports are amended by summaries, metadata and translations, some of which have been generated utilizing machine learning (AI). You shouldn't trust the information provided here blindly, and consider reading the official incident report as a fact-check.

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