What was found
DURING A MAINTENANCE VISIT, FOUND DRILL DAMAGE, LONGERON 25 LEFT THROUGH AND INCLUDING LONGERON 28 LEFT BETWEEN STA= 160 AND STA= 180. A CARGO MOD (PREVIOUS) LEFT AREAS OF DOUBLE DRILLED HOLES IN ABOVE LOCATIONS. DAMAGE EXCEEDED LIMITS IAW DC-8 SRM. REMOVED DAMAGED, TREATED AREA IAW DC-8 SRM 51-1-8. REPAIRED IAW FAA APPROVED TIMCO DER ENGINEERING SKETCH NR REO-05610.