As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A VISUAL INSPECTION OF THE ACFT FOUND AN AREA ON THE TAILBOOM THAT LOOK LIKE CORROSION ON THE TAIL BOOM AT LT SIDE WL 2800 STA 6800. AFTER REMOVING THE TAIL BOOM AND INSPECTING THE WHOLE TAIL BOOM ASSEMBLY A CRACK WAS FOUND AT THE 10L FRAME BULKHEAD 1/8 IN LENGTH AT STA 9800 WL 3000. REPLACED TAIL BOOM ASSY.