As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHK, FOUND CORROSION UNDER CABIN FLOOR. THIS EO8-53-04-0655 PERFORMD REPLACEMENT OR STR 31 STARBOARD FR X424 TO SECTION END AT X531 FOR CONVENIENCE OF CORROSION REPAIRS. NOTE THAT THE REPLACEMENT SECTION OF STR31 IS CUT AS ALLOWED BY RD.