What was found
MCN - MAJOR REPAIR - DURING C-18 CHECK A .75 INCH CRACK WAS FOUND ON STRINGER 16 RT, 5 INCHES FORWARD OF FRAME 500D. MAINTENANCE CUT OUT DAMAGED SECTION OF STRINGER 16 RT, BS 500D; FABRICATED A CHANNEL, RADIUS FILLER, AND FILLER; INSTALLED REPAIR PARTS IAW AWA ER 03-5312-01094-DD1.