As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED. WHEN THROTTLES ADVANCED FOR TAKE OFF THE NR 2 ENGINE WAS SLOW TO SPOOL CAUSING A LARGE YAW TO THE RIGHT. TAKE OFF WAS ABORTED BELOW 80 KNOTS. CREW REACCOMPLISHED CHECKLIST AND SUBSEQUENT TAKE OFF WAS UNEVENTFUL.