What was found
DURING C-CHECK, FOUND HORIZONTAL STABILIZER FRONT SPAR RIGHT UPPER OUTBOARD FITTING INDICATES CRACK AT LUG HOLE. REMOVED BUSHING AT RIGHT UPPER OUTBOARD LUG. ACCOMPLISHED HFEC INSPECTION OF LUG HOLE, CRACK NOTED AT 7 O'CLOCK POSITION. REAMED LUG TO .8125 INCH AS PER SB 727-53-A69. ACCOMPLISHED HFEC INSPECTION OF LUG HOLE, NO CRACKS NOTED THIS TIME. REAMED LUG HOLE TO .875 INCH FOR ADDITIONAL CLEARANCE AS PER SB 727-55-A0069. INSTALLED BUSHING AT RIGHT UPPER AS PER SB 727-55-A69.