Colisión del Ka 4 Rhönlerche con líneas eléctricas durante la aproximación en el aeródromo de Berna/Belpmoos
El 2 de abril de 1967, un Alexander Schleicher Ka 4 Rhönlerche II estuvo involucrado en un incidente en el aeródromo de Berna/Belpmoos en Suiza. El piloto, que tenía experiencia de vuelo reciente limitada, intentó evitar un aterrizaje en campo volando sobre líneas eléctricas aproximadamente 500 metros antes de la pista. Durante esta maniobra, el planeador colisionó con un mástil de línea eléctrica de 15 metros de altura. El piloto resultó ileso, pero el planeador sufrió daños significativos.
- Approach to landing: During the landing approach to Bern/Belpmoos, the glider was on final about half a kilometre before the runway.
- Low recent experience: The pilot was relatively inexperienced and had interrupted his flying activity for a longer period before this flight.
- Desire to avoid outlanding: To avoid an off-field landing, the pilot decided to continue toward the airfield despite being low and approaching power lines.
- Attempt to overfly wires: About 500 m before the runway threshold, the pilot dove to gain speed and then pulled up in an attempt to overfly three electrical lines.
- Collision with mast: During the pull-up, the glider struck the mast of the first 15 m high power line.
- Crash - no injury: The glider was significantly damaged in the collision with the power line mast, but the pilot remained uninjured.