As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A MAINTENANCE WALK AROUND AN OIL LEAK WAS FOUND COMING FROM THE FRONT RT ENGINE. FURTHER INSPECTION INDICATED THAT THE PROPELLER SHAFT SEAL HAD FAILED. THE SEAL WAS REPLACED, THE SYS WAS GROUND FUNCTION CHECKED SERVICEABLE.