As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AWR; HIDDEN CORROSION; DURING REMOTION OF FLOOR PANEL SUPPORT ANGLE TO REMOVE CORROSION, A BEAM WAS FOUND CORRODED [ IN REFERENCE NRC 00136 ]: CORROSION ON FLOORBEAM FWD FACE [ INBD SIDE AND NEAR UPPER/AFT FLANGE ] IN STA. FS= 280 AND 0LBL AT PAX CABIN FWD WET AREA. (W1) (CPAX) TCI: 53-10-219 COMPLETE: SUMMARY: CORROSION LEVEL 2 : FLOORBEAM FWD FACE AT PAX CABIN FWD WET AREA WAS ATTENDED PER EA CRJ753-08378 REV. IR.