What was found
IN MAINTENANCE, CRACKED STRINGER, LEFT MAIN LANDING GEAR WHEEL WELL AT STRINGER 18A, STATION 727, INBOARD AFT END HI-LOC HAS FRACTURE AND 1 INCH CRACK PROTRUDING FROM FASTENER HOLE. STOP DRILLED CRACK, NDT NOTED NO FURTHER CRACK, AND INSTALLED REPAIR DOUBLERS/ANGLES PER BOEING SERVICE BULLETIN 737-53-1066 WITH NEW HYLOCS AND AWA ER 2-53-13-19.