As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AWR; [TASK R53520 STEP 7]; CORROSION ON FLOOR SEAT RAIL IN SECTIONS [FS= 364 TO FS= 409, 27LBL] AT PAX CABIN FWD WET AREA. (W1) (CPAX). FLOOR SEAT RAIL IN SECTIONS FS364 TO FS409 AND 27LBL AT PAX CABIN FWD WET AREA WAS REPLACED PER CRJ-900 AMM 53-00-49-000-801 PAR. C (CONFIG.A07). CORROSION LEVEL 2.