As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOOR SEAT RAIL AT RBL 9 BEGINNING AT APPROXIMATELY FS 581.00 CORRODED IN THREE LOCATIONS. REMOVED SEAT TRACK AT RBL 9 FS 581.00. FABRICATED AND INSTALLED NEW SEAT TRACK, IAW BOMBARDIER REO 670-53-00-343, REV N DATED 7/16/19 AND IAW CRJ 900 AMM 53-00-49-400-801-A17.