As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C3 CHECK, INSPECTION REPORTED SURFACE CORROSION ON FLOORBEAM AFT OF FRAME 66 AND FORWARD OF FRAME 68 (10" INBD OF L2 DOOR CUTOUT) AT OR NEAR CLIPNUTS AT FS 66. REMOVED AND REPLACED FLOORBEAM IAW SRM 51-42-11 AND EA A9-53R-11343.