As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAJOR REPAIR. N453UP: FUSELAGE MAIN CABIN FLOORBEAM UPPER TEE AT STA 1681.8 AND LBL 24.75 - CORROSION REPAIR (CATEGORY C REPAIR)) [T3F18E005PVTD] REQUIRE PERMANENT REPAIR VERIFIED WORK AS SEEN ON FAULT T3F18E005PVTD STEPS #2 THROUGH STEP # 106 FOR PERMANENT REPAIRS INSTRUCTIONS