What was found
DURING C3 CHECK, FOUND RT AILERON INBOARD WITH CHAFING IN CORNER RT PART UPPER SIDE. REMOVED INBD AILERON IAW AMM 27-11-01 PAGE 401 TO 408 ACCOMPLISHED EWO 767 57-048 AILERON FITTING THICKNESS FOUND MIN 0.055 INCH IAW 767 NDT MANUAL D634T301 PART 4 SUB 51-00-10 REV 91 DEC/15/08. NO CRACKS FOUND IAW SOPM PART 20-20-02 REV 23 NOV 01/08/08. IT IS WITHIN LIMITS IAW SRM 57-00-90 PAGE 101-103. PERFORMED SHOT PEEN IAW SOPM 20-10-02 AND APPLIED PROTECTIVE TREATMENT IAW AMM 51-21-04 PAGE 706. RT INBOARD AILERON INSTALLED IAW AMM 27-11-01 PAGE 403 TO 411. OPERATIONAL TEST OK IAW AMM 27-11-00 INBD AILERON IAW AMM 27-11-00 PAGE 556 TO 559 TEST OK IAW AMM 27-11-00 PAGE 501 TO 516. THIS REPAIR CONSTITUTES A MAJOR REPAIR.