What was found
DURING MAINTENANCE INSPECTION NOTED FRESH OIL ON NR 1 ENGINE TURBINE BLADES AFTER CREW REPORTED SMOKE COMING FROM NR 1 ENGINE EXHAUST AFTER SHUTDOWN. THE AIRCRAFT WAS REMOVED FROM SERVICE. COMPLIED WITH NR 1 ENGINE RUN TEST IAW ROLLS-ROYCE AMM 72-00-00. THE OPERATIONAL CHECK WAS GOOD. REMOVED AND REPLACED THE NR 1 ENGINE SHAFT PLUG IAW RR MM 72-59-15 UP TO AND INCLUDING SUBTASK 72-59-15-410-001. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE. PART NUMBERS: GASKET, METAL MS9373-013; GASKET, METAL MS9376-065; PACKING AS3209-122; PLUG SHAFT 23073072.