As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE FINAL AIRCRAFT EXTERNAL CLEANING, IT WAS FOUND THE RUDDER P/N 5547100400000 S/N 5547100400000, LEADING EDGE LOWER SECTION WITH MISSING MATERIAL ON LOWER AREA. DUE TO THIS FACT, DETAILS WERE SENT TO AIRBUS ASKING FOR REPAIR INSTRUCTIONS AND FINAL APPROVAL UNDER AIRBUS DOSSIER 81061231 AND COOPESA´S JOB A1M100 ITEM 997-1