As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE TAKEOFF ROLL DEPARTING, ENROUTE, THE NR ONE ENG AUTO-FEATHERED. THE CREW ABORTED THE TAKEOFF AND RETURNED TO BASE. MX PERSONNEL OBSERVED A LARGE AMOUNT OF OIL AROUND THE FRONT OF THE PROPELLER. FURTHER INSP REVEALED A FAILED O’RING BENEATH THE FEATHER RESERVOIR CAUSING A MASSIVE OIL LEAK RESULTING IN THE AUTO-FEATHER. THE O’RING WAS REPLACED AND THE ENGINE OPERATED BY MX WITH NO LEAKS OBSERVED. THE ACFT WAS RETURNED TO SERVICE.