As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON SHUTDOWN AFTER NORMAL FLIGHT WITH NO REPORTED PROBLEMS, OIL BEGAN LEAKING FROM AC GENERATOR DRIVE ON LH ENGINE. AC GEN DRIVE SEAL HAD FAILED, BUT THE RGB SCAVENGE SYSTEM HAD ALSO ALLOWED THE ENTIRE OIL TANK TO DRAIN INTO THE RGB. SUSPECTED FAILED SCAVENGE PUMP. RGB WAS REPLACED, NO FURTHER PROBLEMS. DEFECT WAS CONFIRMED ON ENGINE RUN ON MARCH 11 2011.