What was found
UPON FLAP EXTENSION PAST FLAPS 15 DEG FLAPS SPLIT 6-8 DEG. TRIED TO EXTEND FLAPS SEVERAL TIMES AFTER RETRACTING FLAPS FIRST. FLAPS CONTINUE TO SPLIT PAST 15 DEG, AIRCRAFT ROLLED TO THE LEFT. REMOVED AND REPLACED LEFT WING OUTBOARD FLAP ACTUATOR/LINK ASSY AND LINK BOLT, IAW MM 27-51-9, OPS CHECK NORMAL.