As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOUNCING ON TAKEOFF ROLL AND TURBULENCE ON TOW CAUSED CANOPY LOCK HANDLE TO UNLOCK AND CANOPY OPENED IN-FLIGHT BREAKING THE REAR HINGE AND GLASS. IT DID NOT BREAK LOOSE FROM THE GLIDER. RECOMMEND OVERCENTER TYPE LOCK SPRING TO HOLD LATCH CLOSED.