What was found
DURING ROUTINE C-CHECK INSPECTION FOUND CRACKED LONGERON AT STATION 1770.000 LONGERON 17 LEFT. REMOVED DAMAGED LONGERON. CLEANED, TREATED, AND PRIMED AREA, AND NEW LONGERON. INSTALLED LONGERON (EXTRUSION P/N S1616757) IAW DC8 SRM 53-1-0, DC-8 SRM 51-1-20D, DC-8 SRM 51-1-8B, DC8 SRM 53-5-1 FIG 7 SHEET 1 PAGE 22 ITEM -B-, DC-8 SRM 51-2-0 FIG 50 SHEET 37, DC-8 SRM 51-1-21, DC-8 SRM 51-3-0, DC8 SRM 51-1-20D, AND DC8 SRM 51-3-1.