What was found
DURING PERFORMANCE OF A HEAVY MAINTENANCE CHECK, CONDUCT3ED REPETITIVE INSPECTION FOR CRACKING OF THE 1.04" NOM DIAMETER POWER CABLE FEED THROUGH HOLE ON FRAME AT FS 500F LEFT IAW AD 2011-23-05, SB 737-53A1279, REV 2. INSPECTION IDENTIFIED A CRACK AT THIS LOCATION. REMOVED FASTENERS, FABRICATED REPAIR DOUBLERS IAW WITH REPAIR SKETCH ESI-ESI-16-0008-07C. REMOVED DAMAGE ADN ACCOMPLISHED HFEC OF CUTOUT WITH NO FURTHER CRACKS FOUND.L PREPARED AREAS AND REPAIR PARTS AND INSTALLED ANGLES AND DOUBLERS IAW SKETCH ESI-ESI-16-0008-07C.