What was found
(CAN) WHILE CONDUCTING AN ACCEPTANCE CHECK FLIGHT, THE CREW OBSERVED A LOW OIL PRESSURE CONDITION ON THE NR 1 ENGINE. THE CREW CONDUCTED A PRECAUTIONARY SHUTDOWN OF THE ENGINE AND RETURNED TO POINT OF DEPARTURE AND LANDED WITHOUT FURTHER PROBLEM. MAINTENANCE DETERMINED THE NR 1 STARTER GENERATOR DRIVE SEAL WAS LEAKING. THE SEAL WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE AFTER SATISFACTORY GROUND RUN. (TC NR 20070530004)