As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE RH FS 280 CROSSBEAM IS CORRODED THROUGH MORE THAN 50% OF THE MATERIAL THICKNESS, REPLACEMENT REQUIRED. CROSSBEAM ON FS280 RH SIDE (P/N CC670-34094-2) IAW CRJ900 SRM 51-42-06-001-001-A01, 51-42-13-001-001-A01 AND 51-42-22-001-001-A01.