As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIN WAS BEING REMOVED TO INSTALL AN AN4-15A BOLT IN ITS PLACE AS A PRECAUTION AFTER THE TAIL SKID OF ANOTHER 407 AIRCRAFT FELL OFF IN-FLIGHT. WHEN THE SPRING PIN WAS REMOVED, IT CAME APART IN TWO PIECES. SUBMITTER STATED INSTALL AN4 BOLT IN PLACE OF THE SPRING PIN.