As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION AT SIDE MOUNTED SEAT RAIL SECTIONS A/C LEFT SIDE FROM APPROXIMATELY FS 669.40 TO APPROXIMATELY FS 977.00, NOTED AREAS OF PREVIOUS BLENDS AND GOUGES. REMOVED AND INSTALLED NEW LT SEAT RAILS FROM APPROXIMATELY FS 669.40 TO FS 977.00, REF CRJ900 AMM. ALL ASSOCIATED CHECKS C/W, NO DEFECTS NOTED AT THIS TIME. SEE CONTINUATION CARD FOR FURTHER DETAILS ON MAINTENANCE PERFORMED.