As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FS333 LOWER FRAME SEGMENT CORRODED BETWEEN STGR 25L AND STGR 25R. - FOUND TO BE BEYOND REPAIRABLE LIMITS IAW CRJ 900 SRM 53-00-06-201-005-A01, REPAIRED FRAME IAW CRJ 900 SRM 53-00-06-201-006-A01, 51-42-21-001-001-A01 AND 51-42-06-001-001-A01 AND 51-21-11-001-001-A01