What was found
DURING "C" CHECK INSPECTION FOUND 2 EA STARTED DRILL HOLES IN THE ATTACH FITTING AT B.S. 1183, WL 278, AND RBL 27. CORRECTED BY INSTALLING 2 PIECE FREEZE PLUG, AND DOUBLER PER BOEING PROVIDED REPAIR PLAN NAC-ANC-02-00003H AND REIVISION NAC-ANC-02-00004H.