What was found
NR 2 GEN TRIPPED OFFLINE AND WOULD NOT RESET. VIBRATION WAS FELT IN NR 2 ENGINE. REMOVED AND REPLACED NR 2 STARTER GEN WITH OVERHAULED PER AMM 24-31-01 COMPLIED WITH STATER GENERATOR UNSCHEDULED REMOVAL TASK 05-50-00-810-821. OPERATIONAL CHECK SATISFACTORY. LEAK CHECK SATISFACTORY COMPLIED WITH FCD 0179 WITH NO DEFECTS NOTED. ALL WORK DONE IAW EMM 05-50-00 AND AMM 24-31-01-400-801-A. REPLACED RT ENGINE OIL FILTER AS REQUIRED PER AMM 79-21-00