What was found
DURING A MAINTENANCE VISIT FOUND CRACK, INTERCOSTAL BETWEEN STA FS 580 AND FS 600 AT LONGERON 33 LEFT, FWD OF STA FS 600. DAMAGE EXCEEDED LIMITS IAW DC-8 SRM. REMOVED DAMAGED, TREATED AREA IAW DC-8 SRM 51-1-8. FABRICATED AND INSTALLED INTERCOSTAL PER DAC DWG NR 5750785 AND DC8 SRM 51-1-20D.