As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF FROM TSY, THE LT ENGINE OIL PRESSURE STARTED FLUCTUATING AND BEGAN DROPPING OFF. THE CAPTAIN DID A PRECAUTIONARY SHUT DOWN AND RETURNED TO TSY AND LANDED WITHOUT FURTHER INCIDENT. THE O-RING IN THE OIL RETURN QUICK DISCONNECT WAS FOUND DAMAGED. THE O-RING WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.