As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHV DURING C CHECK, NUTPLATE HOLES WERE FOUND WITH CORROSION ON LT LATERAL FLOORBEAM BETWEEN FRAMES 15 AND 17. MAITENANCE REMOVED DAMAGED SECTION AND PERFORMED FLOORBEAM REPAIR IAW EC 5320-01078. THE AIRCRAFT WAS APPROVED TO RETURN TO SERVICE.