As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LINE CHECK, FOUND THAT THE TAILCONE WOULD NOT DROP. FURTHER INVESTIGATION REVEALED THAT THE TURNBUCKLE WAS STICKING IN THE CABLE GUIDE TUBE (BETWEEN THE INNER AND OUTER HANDLE) PREVENTING THE UPPER LATCHES FROM COMPLETELY RELEASING. ALSO, FOUND 3 WORN GUIDE PINS AND A WORN UPPER LEFT LEVER ARM. REPOSITIONED THE GUIDE TUBE AND REPLACED THE PINS AND LEVER, CHECKED OK.