As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 PYLON INBD AFT 311N5046-34 SKIN PANEL ASSY HAS CORROSION ON INNER SURFACE. REMOVED AND INSTALLED REPAIRED NR 1 PYLON INBD AFT SKIN PANEL ASSY IAW DWG 311N5002 AND SRM 51-40-02. THIS REPAIR IS CLASSIFIED AS A CAT "A" MAJOR REPAIR WITH NO FOLLOW UP TRACKING REQUIREMENTS.