As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE OUTBOARD CAP (EXTRUDED TEE) OF THE C2 DOOR SURROUND LOWER SILL WAS FOUND BADLY CORRODED ON THE OUTBD FLANGE. THE FLANGE WAS CUT AWAY TO REMOVE THE CORROSION. THE CUT FLANGE WAS REPAIRED WITH A SHEET METAL ANGLE REPAIR PER ER/A 363872-14, REV A.