As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN FULL POWER WAS APPLIED AT TAKEOFF, THE NR 1 ENGINE ONLY INDICATED AN EPR OF 1.46. OTHER ENGINE INDICATIONS WERE NORMAL. TAKEOFF WAS ABORTED. MAINTENANCE VISUALLY CHECKED THE NR 1 ENGINE INLET AND EXHAUST WITH NO TROUBLE FOUND. THE NR 1 ENGINE EPR INDICATION WAS PLACED ON MEL 77-4. EXACT PART CAUSING PROBLEM TO BE DETERMINED.