As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON INSPECTION OF THE PILOT'S AND COPILOT'S SIDE WINDSCREENS, FOUND THE HY-LOCS SECURING THE WINDSCREEN PANES TO THEIR FRAMES HAVE IMPROPER PROTRUSION THROUGH THE COLLARS. THIS HAS CAUSED SEVERAL HY-LOC COLLARS TO LOOSEN AND VIBRATE OFF. THIS IS THE THIRD OCCURRENCE OF THIS TYPE NOTED.