As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE OUTER CHORD OF THE C2 DOOR OPENING WAS FOUND CORRODED. TO REMOVE THE CHORD, THE FS 1440 FRAME OUTER CHORD AND WEB WERE CUT AND THE LOWER ENDS REMOVED. A NEW SECTION OF SILL CHORD WAS INSTALLED, AND THE FRAME WEB AND CHORD SPLICED BACK IN PLACE WITH ALUMINUM REPAIR DOUBLERS. THE REPAIR WAS ACCOMPLISHED PER ER/A 384242-14, REV A.