Incident d'un ASW 19B lors de l'atterrissage à l'aérodrome de Buochs entraîne un décès
Le 30 juin 1984, un planeur ASW 19B a connu un incident lors de l'atterrissage à l'aérodrome de Buochs en Suisse. Le pilote, qui avait une expérience de vol significative mais un temps limité sur ce modèle, a rencontré des difficultés lors de l'approche d'atterrissage. Le planeur est arrivé sur la piste trop haut et trop vite, entraînant un atterrissage brutal. Malgré l'absence de défauts techniques préexistants, le pilote a été mortellement blessé. Le rapport suggère qu'un problème médical pourrait avoir contribué à l'incident.
- Local soaring flight: After an aerotow departure from Buochs, the pilot released near the Bürgenstock ridge, briefly climbed in thermals, then lost usable lift after moving to the Stanserhorn area and back.
- Low height near field: On returning toward the airfield from the Gupf area, the pilot no longer had sufficient altitude to rejoin thermals and committed to a landing.
- Medical vulnerability: The pilot was being treated for diabetes mellitus with an oral antidiabetic (Daonil), a medication known to be capable of causing hypoglycaemic episodes with possible consciousness disturbance under stress.
- Unstabilized fast approach: During the landing pattern the glider turned onto final for runway 07R too high and too fast, with the pilot initially failing to extend the landing gear.
- Delayed gear extension: Only after repeated radio calls from the ground pointing out the retracted gear did the pilot extend the undercarriage.
- Control confusion: The pilot apparently confused the airbrake and undercarriage levers, resulting in an unstable, high-speed final approach with the glider flying unsteadily toward the hard-surface runway at about a 20° angle.
- Crash - fatal: The glider impacted the hard-surface runway multiple times at high speed and came to rest after about 300 m, causing severe injuries from which the pilot later died and substantial damage to the aircraft.