What was found
ON TAXI OUT, RT EEC LIGHT ON RESET AND WOULD NOT RESET. TWO MINUTES LATER, RIGHT GEN CAME OFF LINE. CONSULTED QRH, WOULD NOT RESET. ONE MINUTE LATER, NR 2 ENGINE FAILED, WOULD NOT FEATHER. ACTIVATED ELEC FEATHER. REMOVED AND REPLACED HMU FUEL CONTROL AND FUEL PUMP WITH SERVICEABLE UNIT IAW MM 73-13-00 AND 73-21-00. OPS AND LEAK CHECK GOOD. SN OFF M80569PN OFF 3117095-01 SN OFF 2137