What was found
DURING ROUTINE C CHECK INSPECTION, IMPROPER REPAIR LOCATED AT STATION 1581 LONGERON 23 RIGHT. REMOVED EXISTING REPAIR. REMOVED DAMAGED AREA. PERFORMED NDT INSPECTION. NO CRACK OR CORROSION FOUND. FABRICATED NEW SKIN, EXTERNAL DOUBLER, AND INTERNAL DOUBLER. CLEANED, TREATED AND PRIMED AREA AND REPAIR PARTS. APPLIED SEALANT TO FAYING SURFACE. INSTALLED REPAIR PARTS IAW DC8 SRM 51-1-21, 51-1-20D,SEMAN DRAWING NUMBER ED-4521,DC8 NDT SPM PART 06-10-01.001,DC8 SRM 51-1-8B,DC8 SRM 51-1-11, AND 51-3-1.