What was found
DURING LEVEL-OFF AT 10,000 FEET FOR CRUISE FLIGHT, A POP SOUND WAS HEARD, FOLLOWED BY A LACK OF RESPONSE FROM THE NR 2 CONDITION LEVER AND COMPLETE SHUTDOWN OF THE NR 2 ENGINE. THE CREW DECLARED AN EMERGENCY, AND THE AIRCRAFT RETURNED TO FIELD WITHOUT INCIDENT. THE NR 2 PROPELLER WOULD ALSO NOT FEATHER UNTIL THE FIRE HANDLE WAS PULLED. CHANGEE THE NR 2 ENGINE.