What was found
FOUND AREAS OF POSSIBLE CORROSION INSIDE OF RH AILERON AT WS 294.50 & 319.50 REMOVED SERVICEABLE RT AILERON LOWER SKIN IAW SRM 51-42-13-001-001-A01, SRM 51-42-22-001-001-A01 & SRM 51-42-21-001-001-A01. AFTER REMOVAL OF RT AILERON LOWER SKIN, PERFORMED A DETAILED VISUAL INSP OF AILERON INTERNAL STRUCTURE & INTERNAL SURFACES OF UPPER & LOWER SKINS IAW NDTM 51-20-009-210-A01. FOUND INTERCOSTAL TO BE CORRODED & SEVERAL AREAS OF MISSING PAINT THROUGHOUT INTERNAL STRUCTURE. NO OTHER DEFECTS NOTED. REMOVED CORROSION FROM LOWER ATTACHED FLANGE OF RT AILERON INTERCOSTAL BETWEEN AIL BS 302.649 & 311.539 PER SRM 51-21-06-001-001-A01. REMOVED .014 MATERIAL MAX. FROM A NOMINAL INTERCOSTAL THICKNESS OF .032, MRT = .018. BLEND IS BEYOND 10%. REMOVED DAMAGED RT AILERON INTERCOSTAL & LOCATED, DRILLED & INSTALLED NEW SERVICEABLE IAW SRM 51-40-11-001-001-A01 & 51-42-06-001-001-A01. PAINTED RT AILERON EXTERNAL SKIN AS NEEDED IAW SRM 51-25-01-001-001-A01.