What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
This aircraft departed airport 3GV (grain valley, MO) and traveled north west to perform fight instruction with the student pilot at the controls. During the flight the instructor pilot noted a small trace of oil on the windshield. Shortly after seeing the oil on the windshield he noticed the engine oil pressure had dropped below the green line on the indicator. At this point the instructor pilot took control of the aircraft and tried increasing throttle to see if the oil pressure would return to normal. Upon increasing the throttle, the oil pressure dropped to nearly zero. The instructor pilot elected to shut down the engine and perform an emergency landing in a nearby corn field which contained an established crop that was nearing maturity. Upon contact with the crop, the aircraft abruptly pitched nose down contacting the ground approximately 60 feet from initial impact with the crop then traveled approximately another 15 feet before coming to rest. The aircraft was found with oil on the lower side of the fuselage, left cabin door and a trace on the windscreen. When the interior of the engine compartment was examined oil was found on the back of the engine and on the engine firewall. The oil filler cap was found separated from the filler neck and the engine oil dipstick did not show signs of oil in the engine.
As the FAA filed it
THIS AIRCRAFT DEPARTED AIRPORT 3GV (GRAIN VALLEY, MO) AND TRAVELED NORTH WEST TO PERFORM FIGHT INSTRUCTION WITH THE STUDENT PILOT AT THE CONTROLS. DURING THE FLIGHT THE INSTRUCTOR PILOT NOTED A SMALL TRACE OF OIL ON THE WINDSHIELD. SHORTLY AFTER SEEING THE OIL ON THE WINDSHIELD HE NOTICED THE ENGINE OIL PRESSURE HAD DROPPED BELOW THE GREEN LINE ON THE INDICATOR. AT THIS POINT THE INSTRUCTOR PILOT TOOK CONTROL OF THE AIRCRAFT AND TRIED INCREASING THROTTLE TO SEE IF THE OIL PRESSURE WOULD RETURN TO NORMAL. UPON INCREASING THE THROTTLE, THE OIL PRESSURE DROPPED TO NEARLY ZERO. THE INSTRUCTOR PILOT ELECTED TO SHUT DOWN THE ENGINE AND PERFORM AN EMERGENCY LANDING IN A NEARBY CORN FIELD WHICH CONTAINED AN ESTABLISHED CROP THAT WAS NEARING MATURITY. UPON CONTACT WITH THE CROP, THE AIRCRAFT ABRUPTLY PITCHED NOSE DOWN CONTACTING THE GROUND APPROXIMATELY 60 FEET FROM INITIAL IMPACT WITH THE CROP THEN TRAVELED APPROXIMATELY ANOTHER 15 FEET BEFORE COMING TO REST. THE AIRCRAFT WAS FOUND WITH OIL ON THE LOWER SIDE OF THE FUSELAGE, LEFT CABIN DOOR AND A TRACE ON THE WINDSCREEN. WHEN THE INTERIOR OF THE ENGINE COMPARTMENT WAS EXAMINED OIL WAS FOUND ON THE BACK OF THE ENGINE AND ON THE ENGINE FIREWALL. THE OIL FILLER CAP WAS FOUND SEPARATED FROM THE FILLER NECK AND THE ENGINE OIL DIPSTICK DID NOT SHOW SIGNS OF OIL IN THE ENGINE.