As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL, THE NR 1 ENGINE EPR LAGGED THE OTHER ENGINES AND THE EGT ROSE TO 925C. TAKEOFF EPR TARGET WAS 1.48 AND THE NR 1 ENGINE ONLY REACHED 1.40. TAKEOFF WAS ABORTED. MAINTENANCE INSPECTED THE ENGINE AND REPLACED THE LINEAR DIRECTIONAL CONTROL VALVE. SUBSEQUENT ENGINE RUN WAS NORMAL WITH TAKEOFF EPR ATTAINED. SPECIFIC PART CAUSING PROBLEM TO BE DETERMINED.