Crash d'un SZD-8ter ZO lors de l'approche à l'aérodrome de Montricher, entraînant la mort du pilote

Le 4 août 1976, un SZD-8ter ZO s'est écrasé lors d'une approche à l'aérodrome de Montricher en Suisse. Le pilote, effectuant un vol d'entraînement, a perdu le contrôle lors d'un virage de base, provoquant une mise en vrille du planeur qui a percuté le sol presque verticalement. Le pilote a été mortellement blessé et l'appareil a été détruit. L'enquête officielle a identifié une vitesse et une altitude insuffisantes, ainsi que des conditions de vent en rafales, comme facteurs contributifs de l'accident.

1. Aerotow training flight: The pilot conducted a local training flight in the Jaskolka after aerotow departure from Montricher and, having found no usable lift, returned to the airfield to land.
2. Low experience on type: The pilot had modest overall gliding experience and limited time on the Jaskolka type, reducing his margin for handling errors in the circuit.
3. Gusty crosswind joran: A joran wind with moderate to strong gusts and associated turbulence was blowing across runway 21, increasing the risk of airspeed fluctuations during approach.
4. Low, slow circuit: Witnesses observed the glider flying the landing circuit at a relatively low height and with apparently low airspeed, leaving little reserve of speed and altitude.
5. Stall in base turn: While turning right onto base leg for runway 21, the glider experienced a loss of airspeed and stalled.
6. Spin develops low: The stall immediately developed into a spin with about one and a half turns, with the glider descending steeply and control responses appearing sluggish or ineffective to witnesses.
7. Crash - fatal: With insufficient height to recover from the spin, the glider impacted a field nearly vertically and was destroyed, fatally injuring the pilot.