What was found
DURING MAINTENANCE VISIT, FOUND FRAME 717 WITH MISDRILLED HOLES AT LONGERONS 9 AND 10 LEFT. ALSO LONGERON 11 LEFT INTERCOSTAL MISDRILLED IN THE RADIUS. REMOVED CLIPS AND LOOSENED STRAPS, PLUGGED MISDRILLED HOLES IAW DC-8 SRM 51-1-21, FABRICATED AND INSTALLED REPAIR ANGLE AND STRAPS IAW FAA APPROVED ACMI SKETCH SK98260, HEAT TREATED IAW DC-8 SRM 51-1-1, AREA TREATED IAW DC-8 SRM 51-1-8.