What was found
DURING A MAINTENANCE VISIT FOUND CRACK, RIGHT WING, L/E OB OF NR 4 PYLON AT STA XFS 710, CRACKED SKIN IN 2 PLACES. DAMAGE EXCEEDED LIMITS IAW DC-8 SRM. REMOVED DAMAGED, TREATED AREA IAW DC-8 SRM 51-1-8. FABRICATED AND INSTALLED DOUBLERS IAW DC8 SRM 57-2-1 FIG 24.