As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN FLOOR STRUCTURE-STA.580 STUB FLOORBEAM AT LBL 45.5 HAS A CRACK ON AFT FLANGE AS SEEN FROM FWD CARGO COMPARTMENT. COMPLIED WITH EA F- 5310-T0347001 P1, FUSELAGE - MAIN FRAME - STA. 580 FLOORBEAM SPLICE SEGMENT UPPER AFT FLANGE CRACK REPAIR.