As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING FLIGHT, REPORTS OF FLUID LEAKING FROM THE NACELLE FUEL/OIL DRAIN OF NR 1 ENGINE PROMPTED THE CREW TO SHUT THE ENGINE DOWN. NO COCKPIT INDICATIONS REPORTED. THE ACFT LANDED SINGLE ENGINE WITHOUT ANY FURTHER PROBLEMS. POST FLIGHT INSPECTION FOUND A WORN AC GENERATOR DRIVE SHAFT PLAIN SEAL, POST SB21861, CAUSING AN OIL LEAK TO THE DRAIN. THE ACFT HAS RETURNED TO OPERATION AFTER SEAL REPLACEMENT.