What was found
PDX - C1 - LT OTBD FLAP AT APPROX 30 INCHES FROM INBOARD END AND APPROX 14 INCHES UP FROM TRAILING EDGE ON THE TOP SURFACE HAS A CHAFE FORMING, CHAFE IS APPROX 3 INCHES IN LENGTH AND .100 INCH WIDE IN CENTER OF CHAFED AREA. BLENDED AREA IAW SRM 57-52-30-02 TO REMOVE DAMAGE AND FOUND BLENDED AREA TO BE OUT OF LIMITS IAW SRM 57-52-30-01. HFEC IAW -8 400 NDTM PART 6 51-00-01, NO CRACKS NOTED. UT BOND IAW -8 400 NDTM PART 1 51-00-04, NO DISBONDS NOTED. UT THICKNESS IAW -8 400 NDTM PART 51-00-04, HIGH .032 LOW .030 MAPPED AREA FOR ENGINEERING. INSPECTED AREA OF BLEND AND FOUND AREA TO BE WITHIN LIMITS IAW RD8/4-57-1146, REPAINTED BARE AREA IAW RD8/4-57-1146 TO COMPLETE REPAIR.