What was found
DURING C-4 CHECK INSPECTION, FOUND FS 1600 LONGERON 28R BULGE IN REPAIR. REPAIRED IAW DC-8 SRM 53-2-1 FIGURE 7 CLASS II REPAIR INTIAL INSPECTION DUE 12,000 CYCLES REPETITIVE 4,000 CYCLES REPLACEMENT AT 24,000 CYCLES IAW 53-2-1 FIGURE 5. IAW 51-5-5 OK TO TREAT, PRIME AND INSTALL REPAIR, NO CORROSION FOUND. NON-ROUTINE TASK CARD NR 87474.