What was found
DURING ROUTINE C CHECK INSPECTION, FOUND DOUBLER, AFT LOWER FUSELAGE BELLY BELOW D-PIT DOOR RIVET SPACING EXCEEDED AT FS 1421 LONGERON 36. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR. REMOVED DAMAGED AREA. PERFORMED INSPECTION NDT. NO CRACK, NO CORROSION FOUND. FABRICATED REPAIR DOUBLER, REPAIR TRIPLER, FILLER SKIN, INTERNAL FINGER DOUBLER, AND FILLER INTERNAL DOUBLERS. CLEANED, TREATED AND PRIMED AREA AND REPAIR PARTS. INSTALLED NEW FASTENERS AND REPAIR PARTS IAW DC8 SRM 51-1-11, 51-1-12, 51-3-1, FAA FORM 8110-3 NUMBER 08205 DATED 04/29/08, SEMAN DRAWING NUMBER ED-4735 DATED03/24/08, DC8 SRM 51-1-20D, DC8 NDT SPM PART 06-10-01-001, AND DC8 SRM 51-1-8B.