As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOOR STRUCTURE AT AFT. END OF PRESSURE FLOOR SILL AT FS 559 HAS A LOT OF SURFACE CORROSION TOP AND BOTTOM. REF: 20541521 (C-CHECK) RO 4/30/2020 REMOVED AND REPLACED STRAP AT AFT END OF PRESSURE FLOOR SILL AT FS 559 HAS A LOT OF SURFACE CORROSION TOP BOTTOM. CRJ 200 IAW SRM