What was found
DURING A ROUTINE C CHECK INSPECTION FOUND LT L/E WING INBOARD EXTENDED L/E OUTER PLATING INTERIM REPAIR AROUND STA XSF 710.000. MAJOR REPAIR ACCOMP IAW FAA FORM 8110-3 NR 04592, DWG SEMON EO 3787. REMOVED FASTENERS IAW DC8 SRM 51-1-21 AND SRM 51-1-20D. REMOVED DAMAGED AREA IAW DWG SEMON EO 3787. PERFORMED NDT INSPECTION IAW DWG EO 3787, DC8 NDT SRM PART 06-10-01-001. FABRICATED EXTERNAL REPAIR DOUBLER + FILLER IAW DWG SEMON EO 3787. CLEANED, TREATED AND PRIMED AREA + REPAIRED PARTS INTERNAL PART IAW DC9 SRM 51-1-8B APPLIED PRC SEALANT TO FAYING SURFACES IAW DC8 SRM 51-1-11. INSTALLED REPAIRED PARTS WITH NEW FASTENERS IAW DWG SEMAN EO 3787 DC8 SRM 51-1-21 AND 51-1-20D