What was found
DURING A MAINTENANCE VISIT FOUND A TRIM OUT, FUSELAGE, LONGITUDINAL FLOORBEAM AT BL 11.5 RIGHT FROM STA 21 TO STA 25 IN THE UPPER HORIZONTAL FLANGE AND A BLEND OUT IN THE VERTICAL FLANGE. DAMAGE EXCEEDED LIMITS IAW DC-8 SRM. REMOVED DAMAGED, TREATED AREA IAW DC-8 SRM 51-1-8.. FABRICATED AND INSTALLED REPAIR IAW FAA APPROVED TIMCO DER ENGINEERING SKETCH NR REO- 06226.