What was found
INSPECTION TYPE:C, RT WING OTBD AILERON MOST INBD HINGE UPPER SURFACE SKIN FOUND DAMAGED. SKIN BETWEEN AIL STA 0 TO 31-75 REPAIRED IAW HX RS R-57-60-37036, REV A & EO B747-5750-42419-A. ORIG MATL CLAP 2024T3 0.020" (2 PLIES), CHAFED AREA 8.75"X1.5", DENTED AREA 3"X1". DAMAGE CUT LENGTH 7.875" X31.75". THIS REPAIR IS CLASSIFIED AS MAJOR REPAIR. SPLICE REPAIR SIZE: 7.875"X31.75" FOR SKIN SEGMENT, 6"X7.625" FOR SPLICE.