As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON ANGLE, LOWER SILL (4EAS) BTW FS 319.70 TO FS 349.00 AT SERVICE DOOR SURROUND STRUCTURE. ANGLE, LOWER SILL (4EAS) BTW FS 319.70 TO FS 349.00 WERE EVALUATED OUT OF LIMITS PER CRJ 900 SRM 53-00-00-101-001 -A01 AND WERE REPLACED PER CRJ900 SRM 51-42-06-001-001-A01.