As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*L/H SIDE SEAT RAIL SUPPORT STRUCTURE (HAT CHANNEL) HAS SEVERAL SMALL AREAS OF CORROSION FROM FS 669.40 TO FS 720.85. MARKED WITH RED GREASE PENCIL (C-CHECK) RO 5/10/2020 INSTALLED NEW L/H SIDE SEAT RAIL SUPPORT STRUCTURE (HAT CHANNEL) FROM FS669.40 TO FS720.85, REF: CRJ 900, AMM