As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MULTIPLE AREAS OF CORROSION ON FLOOR SEAT TRACK LBL9 BETWEEN FS 485.00 €“ FS 581.00 (C-CHECK RO 5/3/2021) INSTALLED NEW SEAT TRACK AT LBL9 BETWEEN FS485.00 TO FS581.00 REF CRJ-900 AMM 53-00-49-400-801-A07 / USED CALIBRATED TOOL TUC7825 CAL DUE DATE: 28-FEB-22 / ORDERED HARDWARE AS REQUIRED