As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AS TAKEOFF POWER WAS APPLIED, THE RIGHT ENGINE WAS SLOW RESPONDING TO THROTTLE SETTING. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE REPLACED THE RIGHT ENGINE FUEL CONTROL ASSEMBLY. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.