What was found
DURING A MAINTENANCE VISIT, FOUND DRILL DAMAGE, DOUBLE DRILLED HOLES AND HOLES IN BEAM RADIOUS, FUSELAGE, MAIN CABIN FLOORBEAMS, UPPER FLANGES BETWEEN STA 8 AND STA 70 AT BL 46.5 RIGHT AND BL 46.5 LEFT. DAMAGE WAS CAUSED FROM A PREVIOUS MOD. DAMAGE EXCEEDED LIMITS IAW DC-8 SRM. REMOVED DAMAGED, TREATED AREA IAW DC-8 SRM 51-1-8. FABRICATED AND INSTALLED REPAIR FLOORBEAMS EXTRUSIONS IAW FAA APPROVED TIMCO DER ENGINEERING SKETCH NR REO- 53-0351, REV A AND DC8 SRM 51-1-21, 51-3-0, FIG 1F.