What was found
DURING CRUISE AT FL350, THE NR 2 ENGINE EXPERIENCED COMPRESSOR STALLS. CREW REDUCED POWER TO IDLE MOMENTARILY AND THEN RESTORED POWER. AS POWER WAS RESTORED, NO STALLS OCCURRED AND PARAMETERS WERE NORMAL. AIRCRAFT RETURNED TO MSP AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED BORESCOPE OF NR 2 ENGINE AND REPLACED THE FUEL CONTROL. NO DAMAGE WAS FOUND, OPERATIONAL CHECK OK.