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 RBL9 BETWEEN FS 661.00+46 €“ 693.00. AREAS MARKED. (C-CHECK RO 5/25/2021) SEAT TRACK FOUND TO BE OUT OF LIMITS DUE TWO TYPES OF DAMAGE WITHIN SAME CROSS SECTION AREA REF CRJ900 SRM 53-31-49-101-001-A02. RIECEVED NEW RBL9 FLOOR SEAT TRACK P/N BA690-30000-5980. INSTALLED NEW TRACK P/N BA690-30000-5980 CRJ900 AMM 53-00-49-400-801-A07