As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON START UP OF THE AIRCRAFT, AN OIL LEAK FROM THE FORWARD ENGINE COMPARTMENT WAS NOTICED. THE PILOT IMMEDIATELY SHUT DOWN THE ENGINE. MAINTENANCE REPLACED THE OIL RETURN TUBE ELBOW AND APPLICABLE O-RINGS IAW PT6-114A MM 79-20-01. GROUND RUN UP FOR OPS OF LEAK CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.