As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER REMOVAL OF FLOOR PANEL SUPPORT ANGLE, CORROSION ON LH CROSSBEAM AT FS 280.00 AT LBL 9. LH CROSSBEAM AT FS 280.00 AT LBL 9.00 WAS FOUND 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.