As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL AT 80 KNOTS, THE RIGHT ENGINE EPR INDICATION BEGAN DECREASING. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE REPLACED THE RIGHT ENGINE P AND D VALVE, FUEL CONTROL, AND INSPECTED THE ENGINE INLET AND EXHAUST. LEAK AND OPERATIONAL CHECK OK. FINAL ANALYSIS REVEALS P AND D VALVE TO BE ROOT CAUSE.