As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT, THE LOSS OF ENGINE OIL PRESSURE RESULTED IN A EMERGENCY LANDING. THE CAUSE WAS FOUND TO BE THE ADC FILTER ASSY, P/N T2001-1, CHIP PLUG HSG, P/N 203-1, O-RING RETAINING THE "STOP PLUNGER" DAMAGE WAS FOUND ON THE FILTER ELEMENT. CHIP PLUG LOST IN FLIGHT CAUSING A DIRECT FLOW OUT OF THE SYS FOR THE ENGINE OIL.