As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK, MAINTENANCE FOUND CORROSION ON LT AND CENTER OMEGA BEAM FLOOR BOARD MATTING SURFACE FRAMES 33 TO FRAMES 38. MAINTENANCE REPAIRED CENTER OMEGA BEAM AT FRAME 33 IAW EC 5320-01251 AND LT OMEGA BEAM AT FRAME 33 I/A/W EC 5320-01242. AIRCRAFT WAS APPROVED TO RETURN FOR SERVICE.