As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MAINTENANCE PERFORMING INSPECTION, IT WAS NOTED THAT THE FUSELAGE UPPER LOBE WING CENTER SECTION OVERWING FLOORBEAM CRACKED UNDER SEAT TRACK SECTION BS. 760.9 LBL. 45.50. CRACKED FLOORBEAM WAS REMOVED AND REPLACED WITH NEW CHORD FROM BS 740-850 IAW DWG NR 65-16279. NO OTHER DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.