As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION PANEL ON TOP OF THE VERTICAL STABILIZER ATTACHMENT FLANGE CRACKED ALLOWING THE PANEL TO DEPART AIRCRAFT. THIS INSPECTION PANEL IN UNDER THE RUDDER HORN. TOP PANEL P/N: 7831102-23, ONCE ATTACHMENT FAILS HITS RUDDER AND PIECE FOUND IN ELEVATOR CONTROL HORN.