What was found
DISCREPANCY WHILE AT C-CHECK AT COMMERCIAL JET IN KDHN THE FOLLOWING DAMAGE WAS FOUND AT STATION 783 WL 213RBL AND LBL63 HAVE PILOT HOLES WITH NO PITCH FROM EXISTING HOLES, CHAFE DAMAGE AND A DRILL STRIKE ON THE INBOARD FREE FLANGE OF THE FRAME. CORRECTIVE ACTION: COMMERCIAL JET IN KDHN FABRICATED 4 EACH FREEZE PLUGS FROM 7075-T651, A CIRCULAR FILLER FROM 7075-T6 .090, STRAP FROM 7075-T6 .071 AND A REPAIR DOUBLER FROM 7075-T6 .071 IAW AEI EO# EO12870, TREATED AND PRIMED PARTS AND INSTALLED PARTS IAW AEI EO NO EO12870. WORK APPROVED BY AEI 8110-3 DATED 2/15/2021 BY ROLF D. HAMERQUIST DERT-636371-NM