What was found
DURING TAKEOFF RUN JUST AFTER POWER UP, A SINGLE CHIME WITH FLAP, CONTROL FAULT, ADVANCED SWS. PERFORMED THE ABORT AND RETURNED TO THE GATE. RERACKED FLAP CONTROL UNIT PER MAINT MM 22-50-06. CYCLED POWER, PERFORMED HIGH SPEED TAXI WITH CREW. OPS CHECK GOOD.