What was found
LCQ - MAJOR REPAIR - DURING C-12 CHECK A .75 INCH CRACK WAS FOUND ON INBOARD LOWER SIDE OF FUSELAGE FRAME AT BS 616, STR 17 LT. MAINTENANCE CUT OUT CRACKED FUSELAGE FRAME AT BS 616, STR 17 LT; FABRICATED A FILLER, DOUBLER & STIFFENING ANGLE; INSTALLED REPAIR PARTS IAW AWA ER 03-5311-01143-DD1.