As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION AT MOUNTING ANGLE AND 3 LOWER SILL ANGLES (WEB FLOOR PROTECTOR ANGLES) OF SERVICE DOOR SURROUND STRUCTURE. CORROSION ON 3 LOWER SILL ANGLES (WEB FLOOR PROTECTOR ANGLES) OF SERVICE DOOR SURROUND STRUCTURE WAS REMOVED AND EVALUATED WITHIN LIMITS PER CRJ-900 SRM 51-21-06-001-001-A01 AND SRM 53-21-23-101-002-A02 . MOUNTING ANGLE WAS REPLACED PER CRJ900 SRM 51-42-06-001-001-A01 AND SRM 51-42-21-001-001-A01.