As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SECONDARY NRC AFTER PRESSURE SEAL REMOVAL ON AFT CARGO DOOR, CORROSION FOUND SEVERAL PLACES ON BOTTOM FACE AFT CARGO COMPARTMENT. CORROSION ON RETAINERS SEAL (3 EAS) AT AFT DOOR C2. WERE REMOVED PER CRJ 900 SRM SRM 51-21-06-001-001-A01. AND FOUND OUT OF LIMITS PER CRJ 900 SRM 52-00-01-101-001-A01, THEREFORE WERE REPLACED PER CRJ 900 SRM 51-42-06-001-001-A01