As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 2C CHECK FOUND RIGHT CABIN OUTBOARD FLOORBOARD SUPPORT FROM FS 280.00 TO THE SERVICE DOOR SILL CUT OUT HAS EVIDENCE OF CORROSION. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED FORWARD SERVICE DOOR SILL IAW BOMBARDIER CRJ700 STRUCTUAL REPAIR MANUAL 51-42-06. THE AIRCRAFT WAS RETURNED TO SERVICE.