As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C CHECK, BUTT STRAP RT OF CENTER FLOORBEAM AT FRAME 18 WAS FOUND TO HAVE CORROSION ANROUND NUTPLATE HOLES. MAINTENANCE REMOVED DAMAGE AND PERFORMED A DOUBLER REPAIR IAW CONTINENTAL EXPRESS EC 5320-0179. THE AIRCRAFT WAS APPROVED TO RETURN TO SERVICE.