What was found
DURING FLIGHT 3489, NR 2 ENGINE LOW POWER, HIGH EGT. AIR RETURN TO MSP. NR 2 ENGINE ONLY PRODUCE APPROX 91 - 92 PERCENT N1, BUT EGT WENT OVER 600 C. OTHER ENGINE STAYED AT APPROXIMATELY 95 PERCENT, N1 AND EGT WAS CLOSER TO 500 C. A 70 DEGREE DIFFERENCE. MAINTENANCE REMOVED AND REPLACED NR 2 BLEED BAND ACTUATOR P/N 2-160-350-40, SN/OFF 97B009, SN/ON XRC13-98 IAW 72-00-34, BOROESCOPED HOT SECTION 1ST STAGE NOZZLE AND NO DAMAGE NOTED. PERFORMED POWER ASSURANCE CHECK IAW 7100-501, ALL CHECKS GOOD.