As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: MAIN CABIN STATION 947.5 FLOOR BEAM UPPER SURFACE HAS AREAS OF CORROSION BETWEEN RIGHT BUTT LINE 45 AND RIGHT LINE BUTT LINE 55. REPAIRED FLOOR BEAM WITH SPLICE REPAIR PER SRM 51-40-02-0G.**SUPPLEMENTAL REPORT: ENGINEERING REVIEWED THIS EVENT AND DETERMINED THE CORRECT LEVEL WAS LEVEL 2 NOT LEVEL 1. SECTION 7 CORROSION LEVEL FIELD WAS CORRECTED ACCORDINGLY**