As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CREW REPORTED EPR GAUGE UNRELIABLE DURING CLIMB. EPR TANSMITTER REPLACED AND TESTED IN ACCORDANCE WITH 77-11-0. ON TAKEOFF ROLL EPR GAUGE AGAIN FAILED. ANOTHER EPR TRANSMITTER WAS INSTALLED, TESTED SERVICEABLE AND THE AIRCRAFT RETURNED TO SERVICE.