What was found
RDU - FLT 4634 - NR 2 ENGINE HAD UNCOMMANDED SHUTDOWN. FLIGHT CREW REPORTS THAT DURING CLIMB TO 13,000 FEET THE NR 2 ENGINE ACCELERATED RAPIDLY ON ITS OWN, A/C YAW'D TO THE LEFT. IGNITION A-B LIGHT CAME ON, THEN ENGINE 2 OUT MESSAGE CAME ON, AND THE ENGINE RPM INDICATION WENT TO ZERO. RAI NR 2 ENGINE ASSEMBLY. (M)