Ka 6 aileron disconnects in flight after a rigging error

A Ka 6 CR became uncontrollable soon after a winch launch when its left aileron came adrift; the student bailed out but was fatally injured when the parachute did not open. On the pilot’s first flight on the type, it released at 478 m AGL before a jammed control was radioed: the freed aileron pushrod had jammed against the fuselage, and the glider fell away in a steep descent. Told to jump, the student left it at about 100-120 m AGL but did not pull the parachute release. The connection had been secured incorrectly when the glider was rigged that morning — a fault that passed visual and function checks, working loose only after three flights.

1. Winch launch, first on type: A student pilot winch-launched a Ka 6 CR for a training flight — the pilot's first on the type — and released normally at 478 m AGL.
2. Aileron connection comes loose: The left aileron pushrod, mis-secured during that morning's rigging, worked out of its fitting after three earlier uneventful flights.
3. Rigging fault looked correct: The locking pin had been routed past the bolt rather than through it, yet closed — so the error passed both a visual and a function check.
4. Controls jam, glider uncontrollable: The freed pushrod fouled the fuselage structure and blocked the aileron; the glider entered a steep, high-rate descent.
5. Bail-out, chute not deployed: Told by radio to jump, the pilot jettisoned the canopy and left the glider at about 100-120 m AGL but did not pull the parachute release.
6. Fatal impact: The glider dived onto a cemetery and was destroyed; the pilot fell without the parachute opening and was fatally injured.