As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PASSENGER CABIN SEAT RAIL ON LBL 27 HAS MULTIPLE SPOTS OF CORROSION, CHAFES, SCRATCHES AND/OR GOUGES BETWEEN APPROX. FS 579 AND APPROX. FS 677. (C-CHECK RO 4/22/2021) REPLACED WITH FABRICATED. PASSENGER CABIN SEAT RAIL LOCATED AT LBL 27.0 FROM FS579-FS677. REF CRJ-700 AMM 53-00-49-400-801-A17.