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 EPR INDICATION DID NOT RESPOND. CREW ABORTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE REPLACED THE RIGHT ENGINE EPR INDICATOR, EPR TRANSMITTER AND THE PROBLEM CONTINUED. MAINTENANCE THEN APPLIED HEAT TO PT7 LINES AND DRAINED THE MOISTURE. OPERATIONAL CHECK OK. SUSPECT ICING OF THE PT7 LINES.