As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON SIDE SEAT RAIL STGR 15 LH BTW FS 785.15 TO FS 847 +48.00. SIDE SEAT RAIL STGR 15 LH BTW FS 785.15 TO FS 847 +48.00 AT PASSENGER CABIN FLOOR STRUCTURE WAS EVALUATED OUT OF LIMITS PER CRJ900 SRM 53-41-49-101-001-A02 FIGURE 53-41-49-991-806 AND WAS REPLACED PER CRJ900 AMM 53-00-49.