As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBING PHASE OF FLIGHT THE CAPTAIN REPORTED ENG 1 EPR MODE FAULT WITH N1 UNRATED INDICATION. THE ACFT RETURNED FOR MX. AFTER AN UNEVENTFUL LANDING THE ACFT WAS HELD ON GND & PERFORMED FAULT ANALYSIS IAW TSM 73-22-00-810-817-B, REPLACING THE P2 & T2 SENSOR OF ENG 1 IAW AMM 73-22-11 PB401, PERFORMED THE CORRESPONDING TESTS WITH NORMAL RESULTS. AS A PRECAUTIONARY ACTION REPLACED THE RELAY BOX OF ENG 1 IAW AMM 71-51-49 PB401. THE ACFT WAS RETURNED TO SERVICE.