What was found
ON CLIMB OUT, NR 1 ENG WAS UNABLE TO MAINTAIN FULL CLIMB POWER, THRUST LEVERS SPLIT APPROX 5 INCHES, NR 2 ENG WAS ABLE TO MAINTAIN FULL CLIMB POWER, NR 1 ENG FULL FWD AGAINST STOPS. CLIMB WAS 1.54, NR 1 ENG INDICATED 1.44, FL 230. ENG LIMITER INOP LIGHT ILLUMINATED WITH EICAS MESSAGE (L ENG LIMIT) DISPLAYED. TURNED BACK AND LANDED WITHOUT FURTHER EVENT. MAINT REMOVED AND REPLACED THE NR 1 ENG FUEL FLOW GOVERNOR IAW T/C R5M73603, TRIM PERFORMED IAW T/C F5M73601. MAINT ALSO REPLACED NR 1 ENGINE ELEC SPEED AND TEMP LIMITER IAW T/C R2A73601. ENG RUN PERFORMED AT TAKEOFF POWER THRUST LEVERS OPERATED NORMALLY, NO BITE FAULTS.