What was found
CORROSION ON FWD, MID AND AFT ANGLE CAP (3 EAS) AT PASSENGER DOOR SURROUND STRUCTURE BTW FS 310.00 TO FS 349.00 OVER STGR 18L. DUE TO EXCESSIVE CORROSION ON MID AND AFT ANGLE CAP WERE EVALUATED OUT LIMITS THEREFORE WERE REPLACED PER CRJ-900 SRM 51-21-06-001-001-A01, SRM 53-00-00-101-001-A01, SRM 51-41-02-001-001-A01 SRM 51-42-06-001-001-A01 AND FWD ANGLE CAP WAS CLEANED AND DAMAGE WAS FOUND NOT PER CRJ-900 SRM 51-26-00-001-001-A01