What was found
CORROSION WAS FOUND ON THE EDGE OF THE PANEL LAND AT PANEL 642AB ON THE PN 6722146-2, RT WING LOWER SKIN. CWS 268.05-288.4. ACCOMPLISHED CORROSION REMOVAL ON RT PANEL 40 642AB IAW SRM 57-20-01. ACCOMPLISHED ET NDI OF AREA IAW NDTM PART 6-57-20-01, AFTER CORROSION REMOVAL. ACCOMPLISHED ET NDI OF WING SKIN IAW NDTM PART 6-57-20-01, AFTER FUEL LAND CUT OUT. ACCOMPLISHED UT NDI OF WING SKIN IAW NDTM PART 4-57-20-01, INSTALLED PN 6792408-22 DOUBLER. ACCOMPLISHED REPAIR DEFINITION NR S-750-0156 24RD, MAJOR REPAIR, REPAIR OF LOWER WING SKIN CORROSION. REPAIR DATED APRIL 12 2016 & FAA FORM 8100-9 DATED 4 14 2016. WEIGHT & BALANCE WAS NOT AFFECTED. PERTINENT DETAILS OF THE REPAIR ARE ON FILE AT THIS REPAIR STATION UNDER SERVICE ORDER 31704. 04 21 2016 08:36:30 CST CARL LUTHE X49183, INSTALLATION OF DOUBLER & LEAK CHECK GOOD. THIS ORDER IS COMPLETE.