What was found
DURING C CHECK INSPECTION, EXTERNAL DOUBLER LEFT AFT FUSELAGE BELOW L-2 DOOR. REPAIR FAILED ASSESSMENT DOUBLER NOT THICK ENOUGH, SIDES 2 UPPER AND 4 LOWER EXCEED AVERAGE RIVET SPACING SIDES 1 FWD, 2 UPPER, 3 AFT, 4 LOWER EXCEED MAX RIVET SPACING. UPGRADE REPAIR PER DACO DC-8 SRM (STA FS 1670). PERFORMED MAJOR REPAIR IAW FAA FORM 8110-3 NR 05283 DATE 07-06-05, SEMAN DWG ED 4002 DATE 07-01-05, EO SEMAN NR 2005904 DATE 07-06-05. REMOVED EXISTING REPAIR DOUBLER IAW DC-8 SRM 51-1-21 PAGE 1. PERFORMED DETAILED VISUAL INSPECTION. NO CRACK FOUND, NO CORROSION FOUND. FABRICATED REPAIR DOUBLER (ALCLAD 7075 T6 0.050”) + INTERNAL FINGER DOUBLER (ALCLAD 7075 T6 0.032”) IAW SEMAN DWG ED 4002, DC-8 SRM 51-1-4 PAGE 1. C