What was found
MCN - MAJOR REPAIR - DURING C-12 CHECK A CRACK WAS FOUND ON STRINGER 16 ON CABIN R/H SIDE AT BS 500C+5, JUST FORWARD OF LIGHT. MAINTENANCE REMOVED DAMAGED END OF STR 16, FABRICATED A REPAIR CHANNEL, AND INSTALLED REPAIR IAW AWA ER 03-5314-02102-ES1.