As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER FLOOR PANEL SUPPORT ANGLE REMOVAL IN REF NRC 00075, CORROSION ON TRANSVERSE BEAM FS280 WAS FOUND BTW BL 0 - RBL 12. DUE EXCESSIVE CORROSION ON TRANSVERSE BEAM FS280 RH IT IS OUT OF LIMITS PER CRJ-900 SRM 53-00-00-101-001-A01 THEREFORE WAS REPLACED PER CRJ-900 SRM 51-42-06-001-001-A01,CRJ/900 SRM 51-42-21-001-001-A01 AND CRJ/900 SRM 51-42-10-001-001-A01