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 LOOR PANEL SUPPORT ANGLE RELATED WITH NRC 00162 ]: CORROSION ON FLOOR BEAM [ FWD FACE ] IN STA. FS= 280 BETWEEN 01LBL TO 07LBL AT PAX CABIN FWD WET AREA. (W1) (CPAX) TCI: 53-10-219 "NEW FLOOR BEAM IN STA. FS= 280 LBL WAS INSTALLED PER CRJ-900 SRM 51-42-06-001-001-A01.PAR.6.C. AND 51-42-21-001-001-A01.PAR.6.C.