What was found
LEFT WING FRONT SPAR LOWER FLANGE HAS BARE METAL WITH POSSIBLE FRETTING CORROSION FROM STA YW 42 TO 155. REMOVED CORROSION IAW SRM 51-21-00-00-02, REV 12. MIN THICKNESS NOTED .199" REF NTM 51-00-04-910-801, PT 1, REV 9. VERIFIED AFFECTED TO BE CRACK FREE REF NDTM PART 6, TASK 51-00-01-250-801, REV 9. REMAINING MAT THICKNESS IS WITHIN LIMITS IAW RD8/4-57-2111, ISSUE 1, DATED 6MAY2013. REMOVED ANCHOR NUTS AND SIZING SLEEVES AS REQUIRED AND ROTARY FLAP PEENED IAW RD8/4-57-2111, ISSUE 1. PEENED TO INTENSITY .008A 100 PERCENT COVERAGE. ALODINED AND PRIMED IAW RD8/4-57-2111, ISSUE 1. INSTALLED SIZING SLEEVES IAW SRM 57-10-05-02-02, REV 12. INSTALLED ANCHOR NUTS IAW RD8/4-57-2111, ISSUE 1. APPLIED TEFLON TAPE IAW RD8/4-57-2111, ISSUE 1. COMPLIED WITH TC RD8/4-57-2111, WO 143293.