What was found
DURING ROUTINE C CHECK INSPECTION, FOUND LEFT CUSP EXTRUSION UPPER SURFACE AFT FITTING CRACKED AT STATION 717.750 LONGERON 19 LEFT. REMOVED CRACKED FITTING. FABRICATED FITTING. PERFORMED NDT INSPECTION. NO CRACK, NO CORROSION FOUND. CLEANED TREATED AND PRIMED FITTING AND AREA. INSTALLED NEW FITTING IAW DC8 SRM 51-3-1, DC8 SRM 51-1-20D, DACO DPS 4.707, DC8 SRM 51-1-8B, ATI REPAIR SPECIFICATION NUMBER 2003-05, AND DOUGLAS DRAWING 3779978.