As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER FLIGHT, PILOT NOTICED OIL DRIPPING FROM ENGINE ASSEMBLY. AFTER FURTHER INVESTIGATION, OIL PRESSURE SWITCH SENDING UNIT LINE WAS FOUND INSTALLED FINGER TIGHT. REMOVED LINE AND EXAMINED FITTING AND LINE, REINSTALLED THE LINE AND COMPLETED ENGINE RUN PROCEDURES. AIRCRAFT WAS NEW FROM FACTORY AND SHOWED NO PREVIOUS MAINTENANCE TO THIS AREA. MFG WAS NOTIFIED OF DEFECT 2/27/14.