As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER DEPARTURE, LEFT ENGINE OIL PRESSURE LIGHT ILLUMINATED, CREW VERIFIED SITUATION WITH PRESSURE GAUGE. ENGINE WAS SHUT DOWN FOR PRECAUTIONARY REASON. AIRCRAFT MADE UNEVENTFUL RETURN TO AIRPORT. CAUSE UNKNOWN. NO RECOMMENDATION AT THIS TIME.