What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: on 12/16/95, at approximately 09:30 CST, N3824J departed the Marion Airport, Marion, Iowa (C17) enroute to prairie du chein, WI (pdc). During the climb at 3,000 ft. the engine began to lose power and operate roughly. Carburetor heat was used and the mixture was adjusted but the engine continued to lose power. The engine continued to operate at maximum power of 1000RPM. An attempt was made to return to the Marion Airport, but was forced to land on a road. The aircraft was not damaged and the passengers were not injured. A visual inspection was made by the owner, perry walton, who reported that the fuel was approximately one inch below full tanks. An inspection of the engine revealed that the intake valves on two cylinders were sticking open. The aircraft and engine records were inspected and no discrepancies were found. Inspection of the aircraft revealed a large black stain on the left side of the aircraft aft of the exhaust stack indicating poor combustion. This incident is closed with this report.
As the FAA filed it
NARRATIVE: ON 12/16/95, AT APPROXIMATELY 09:30 CST, N3824J DEPARTED THE MARION AIRPORT, MARION, IOWA (C17) ENROUTE TO PRAIRIE DU CHEIN, WI (PDC). DURING THE CLIMB AT 3,000 FT. THE ENGINE BEGAN TO LOSE POWER AND OPERATE ROUGHLY. CARBURETOR HEAT WAS USED AND THE MIXTURE WAS ADJUSTED BUT THE ENGINE CONTINUED TO LOSE POWER. THE ENGINE CONTINUED TO OPERATE AT MAXIMUM POWER OF 1000RPM. AN ATTEMPT WAS MADE TO RETURN TO THE MARION AIRPORT, BUT WAS FORCED TO LAND ON A ROAD. THE AIRCRAFT WAS NOT DAMAGED AND THE PASSENGERS WERE NOT INJURED. A VISUAL INSPECTION WAS MADE BY THE OWNER, PERRY WALTON, WHO REPORTED THAT THE FUEL WAS APPROXIMATELY ONE INCH BELOW FULL TANKS. AN INSPECTION OF THE ENGINE REVEALED THAT THE INTAKE VALVES ON TWO CYLINDERS WERE STICKING OPEN. THE AIRCRAFT AND ENGINE RECORDS WERE INSPECTED AND NO DISCREPANCIES WERE FOUND. INSPECTION OF THE AIRCRAFT REVEALED A LARGE BLACK STAIN ON THE LEFT SIDE OF THE AIRCRAFT AFT OF THE EXHAUST STACK INDICATING POOR COMBUSTION. THIS INCIDENT IS CLOSED WITH THIS REPORT.