As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOOR SUPPORT STRUCTURE SEAT RAIL RBL9 FROM APPROXIMATELY FS399 TO FS409+120 HAS CORROSION AROUND FASTENER HOLES AND OTHER MARKED ELEMENTS. C-CHECK RO 9/1/2020. REMOVED SEAT RAIL TO FOM FROM FS399 TO FS409+112 RBL9, REF CRJ200 AMM & INSTALLED NEW SEAT TRACK RBL 9 FROM FS399 TO FS409+120 REF CRJ200 AMM TOOL USED TUC 7826, CAL DUE 28-FEB-21.