What was found
ON CLIMBOUT THROUGH 12,000 FT. POWER PLANT MESSAGE APPEARED ON ENGINE DISPLAY. RETURNED TO FIELD AND ACCOMPLISHED A UNEVENTFUL LANDING. REPLACED NR 1 FADEC AS A PRECAUTION, REPLACED NR 1 P3 TRANSDUCER, REPLACED NR 2 FADEC HARNESS, REPLACED NR 1 CHARACTERIZATION PLUG. C/W POWER ASSURANCE RUNS FOR NR 1, NR 2 ENGS. ALL FAULT CODES WERE CLEARED PRIOR TO POWER ASSURANCE RUNS, NO FAULT CODES RETURNED. RETURNED TO SERVICE.