As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RBL 9.0 FLOOR TRACK HAS AREAS OF LITE CORROSION FROM APPROX FS 349 TO APPROX FS477.0 (C-CHECK RO 4/3/2021) REMOVED AND REPLACED SEAT TRACK, SEAT TRACK FOUND TO BE OUT OF ALLOWABLE LIMITS AFTER CORROSION REMOVAL IAW CRJ700 AMM 53-00-49-400-801-A17