Collision d'un ASK 13 avec une personne lors de l'atterrissage à l'aérodrome de Granges
Le 21 août 1981, un planeur Alexander Schleicher ASK 13 est entré en collision avec une personne lors de l'atterrissage à l'aérodrome de Granges, en Suisse. Le pilote élève effectuait son deuxième vol solo et approchait de la piste d'atterrissage marquée en jaune. Pendant l'atterrissage, l'aile gauche du planeur a heurté l'une des trois personnes se tenant sur la piste, causant des blessures à la tête. La collision s'est produite parce que l'individu est resté sur la piste sans nécessité. Le planeur a subi des dommages à son aile gauche, mais il n'y a eu aucun décès.
- Aerotow landing: During his second solo flight after an aerotow launch, the student pilot flew a normal circuit and turned onto final approach to land on the yellow-marked glider landing strip.
- People on landing strip: On final approach the student pilot observed a group of three glider students standing on the yellow landing strip in his intended touchdown area.
- Obstructed adjacent strips: The pilot assessed that lateral deviation was inadvisable because a towplane was on the red takeoff strip to his left and another glider landing had been announced on the blue strip to his right.
- Person remains on strip: Despite the approaching glider, one of the students (Y) remained standing unnecessarily within the yellow landing strip near its left edge instead of moving clear.
- Approach continued: Expecting the group to vacate the runway or that he could pass by them, the student pilot continued a normal, straight-in landing on the yellow strip without a late avoidance maneuver.
- Wing strikes person: At touchdown about 42.5 m beyond the threshold and slightly south of the centerline, the glider’s left wingtip area struck student Y in the head as he stood near the left side of the yellow strip.
- Crash - serious injury: The glider veered left and stopped south of the yellow strip with damage to its left wing, and student Y sustained head injuries from the wing impact.