As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE TAILCONE RELEASE SYSTEM FUNCTIONAL CHECK, MAINTENANCE FOUND THAT THE TAIL CONE FAILED TO DROP BECAUSE A SINGLE SPRING WAS MISSING FROM A RELEASE CABLE SYSTEM PIN. THE SPRING WAS INSTALLED AND THE SYSTEM WAS SUCCESSFULLY FUNCTIONALLY CHECKED IAW AMM 53-52-01 720-805.