What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) As the glider was being towed, for take off, the right outboard wing separated resulting in the glider crashing. A detailed examination revealed that the retaining pins were not engaged into their respective fittings in the right wing panel during assembly of the glider. It is necessary to turn the jack screw for the retaining device 15 turns to accomplish this engagement.
As the FAA filed it
(-23) AS THE GLIDER WAS BEING TOWED, FOR TAKE OFF, THE RIGHT OUTBOARD WING SEPARATED RESULTING IN THE GLIDER CRASHING. A DETAILED EXAMINATION REVEALED THAT THE RETAINING PINS WERE NOT ENGAGED INTO THEIR RESPECTIVE FITTINGS IN THE RIGHT WING PANEL DURING ASSEMBLY OF THE GLIDER. IT IS NECESSARY TO TURN THE JACK SCREW FOR THE RETAINING DEVICE 15 TURNS TO ACCOMPLISH THIS ENGAGEMENT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.