What was found
LEFT WING FRONT SPAR TOP FLANGE HAS BARE METAL AND FRETTING CORROSION FROM STA YW42 TO YW 155. REMOVED CORROSION LT WING FRONT SPAR TOP FLANGE IAW SRM 51-21-00-00-02 REV 12 MIN THICKNESS NOTED .189", CONFIRMED AFFECTED AREA CRACK FREE REF NTM 51-00-04-910-801 PT 1 AND 51-00-06-910-801 PT 1, REV 8. REPLACED ANCHOR NUTS AS REQUIRED IAW RD8/4-57-2064 ISSUE 1. BLENDING IS IN LIMITS IAW RD8/4-57-2064 ISSUE 1. ROTARY FLAP PEENED REWORKED AREA IAW RD8/4-57-2064, ISSUE 1. FLAP PEEN INTENSITY .008A FOR 100MIN 0 SEC. APPLIED SURFACE PROTECTION IAW RD8/4-57-2064, ISSUE 1. APPLIED TEFLON TAPE IAW RD8/4-57-2064 ISSUE 1. COMPLIED WITH TC RD8/4-57-2064 WO 143401.