What was found
THS LEFT UPPER BODY FAIRING FWD ATTACH BRACKET ANGLE CORRODED, CENTER BOX AREA, ANGLE IS PART OF LEADING EDGE. REMOVED AND REINSTALLED UPPER APRON IAW A310-200 SRM 51-40-21. REMOVED AND REINSTALLED RIB ASSY IAW A310-200 51-40-21. REMOVED UPPER ATTACH PLATE IAW A310-200 SRM 51-40-21. REMOVED CORROSION ORIGINAL THICKNESS .252 REMOVED .050 REMAINING THICKNESS .200, FOUND TO BE OUT OF LIMITS IAW A310-200 55-12-28 (NO REPAIR AUTHORIZED). RECEIVED NEW PART P/N A5517860720000 P/O 604175.1. INSTALLED NEW BRACKET IAW A310-200 SRM 51-40-21.