As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CRACK LOCATED AT UPPER LT TAILBOOM ATTACHMENT FITTING (AIRFRAME SIDE), P/N 206031329001. CRACK EXTENDS BETWEEN FIRST SET OF RIVETS FORWARD OF ATTACHMENT BOLT HOLE, AS WELL AS ABOVE UPPER RIVET TO THE TOP EDGE OF THE FITTING. CRACK FOUND DURING A 100/300 HR INSPECTION. SUBJECT PART TO BE REPLACED.