As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
3 EA. TOP PLATES CORRODED ON FLOOR BEAM AT FS589 BETWEEN LBL9 AND RBL9 *********AIRCRAFT REMOVED FROM SERVICE********* UPON INVESTIGATION FOUND DAMAGE TO BOTH LBL9 AND RBL 9 TO BE WITHIN LIMITS. LBL9 CAP SPLICE: LOWEST REMAINING 0.076". ORIGINAL THICKNESS WAS 0.080", 0.004" REM