What was found
AT CRUISE FL340, THE AIRPLANE MADE A LOUD POP, THEN A BANG, FOLLOWED BY A VIBRATION , YAW, AND ITT OVERTEMP/ N1 OVERSPEED ON THE RIGHT ENGINE. BOTH POWER LEVERS REDUCED IMMEDIATELY. BOTH ENGINE PARAMETERS INDICATED NORMAL RANGES. FLIGHT RETURNED TO DEPARTURE AIRPORT AND LANDED WITHOUT INCIDENT. POST FLIGHT REVEALED NO EXTERIOR DAMAGE. SWAPPED LT & RT BLEED AIR CONTROL PCBS. REMOVED RT HPRSOV & INSTALLED NEW HPRSOV IAW AMM 36-00-00. ALL LEAK & OPS CHECKED WERE PERFORMED SATISFACTORY.