What was found
MCN - MAJOR REPAIR - DURING C-15 CHECK A CRACK WAS FOUND ON STRINGER 16 R/H JUST AFT OF OVERWING LIGHT AT BS 500C+16. MAINTENANCE CUTOUT THE DAMAGED AREA OF STRINGER 16 R/H, AT BS 500C+16, AND PERFORMED A HFEC INSPECTION TO VERIFY NO CRACKS EXIST. FABRICATED A REPAIR CHANNEL, FILLER, AND RADIUS FILLER, AND INSTALLED REPAIR PARTS IAW AWA ER 03-5312-01094-DD1.