What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) While in level cruise enroute to dulles one of the passengers observed smoke from the engine. Soon after pilot observed engine low oil PSI light came on. Declared emergency, was given heading to fdk by dulles approach, it was 9 miles DME. Engine performance degraded down to 1800 RPM on way to frederick, pilot reduced power and began looking for place to land. Engine seized, dead stick landing in farm field with no further damage to aircraft. No injuries. Engine damage consistent with oil starvation. #2 vacuum pump gasket found blown out, causing loss of engine oil. Gasket was cork type, which was not the approved material in current Cessna maintenance manual.
As the FAA filed it
(-23) WHILE IN LEVEL CRUISE ENROUTE TO DULLES ONE OF THE PASSENGERS OBSERVED SMOKE FROM THE ENGINE. SOON AFTER PILOT OBSERVED ENGINE LOW OIL PSI LIGHT CAME ON. DECLARED EMERGENCY, WAS GIVEN HEADING TO FDK BY DULLES APPROACH, IT WAS 9 MILES DME. ENGINE PERFORMANCE DEGRADED DOWN TO 1800 RPM ON WAY TO FREDERICK, PILOT REDUCED POWER AND BEGAN LOOKING FOR PLACE TO LAND. ENGINE SEIZED, DEAD STICK LANDING IN FARM FIELD WITH NO FURTHER DAMAGE TO AIRCRAFT. NO INJURIES. ENGINE DAMAGE CONSISTENT WITH OIL STARVATION. #2 VACUUM PUMP GASKET FOUND BLOWN OUT, CAUSING LOSS OF ENGINE OIL. GASKET WAS CORK TYPE, WHICH WAS NOT THE APPROVED MATERIAL IN CURRENT CESSNA MAINTENANCE MANUAL.