As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MDT- DURING A FLEET INSPECTION, THE REAR FUSELAGE STRUCTURE WAS FOUND CRACKED, (VERIFIED WITH EDDY CURRENT CHECK) AT FRAME NR 4 STRINGER NR 4 LT SIDE 1ST RIVET HOLE. CRACK WAS REPAIRED PER RD 8-55-199. AIRCRAFT WAS RETURNED TO SERVICE.