What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On August 30, 1998 at 4:00PM, dst, a Piper J3-C65 departed Clow airport, Plainfield, IL on a test flight to "break-in" in newly overhauled engine. On descent to landing, carburetor heat was applied. An excessively rich mixture was encountered. The carburetor does not have a remote mixture control. The engine quit before the carburetor heat could be turned off. The aircraft landed in a field approx. 1/2 mile from the south end of Clow airport. No damage or fire to the aircraft. No injuries to the commercially rated pilot. Nothing follows.
As the FAA filed it
(-23) ON AUGUST 30, 1998 AT 4:00PM, DST, A PIPER J3-C65 DEPARTED CLOW AIRPORT, PLAINFIELD, IL ON A TEST FLIGHT TO "BREAK-IN" IN NEWLY OVERHAULED ENGINE. ON DESCENT TO LANDING, CARBURETOR HEAT WAS APPLIED. AN EXCESSIVELY RICH MIXTURE WAS ENCOUNTERED. THE CARBURETOR DOES NOT HAVE A REMOTE MIXTURE CONTROL. THE ENGINE QUIT BEFORE THE CARBURETOR HEAT COULD BE TURNED OFF. THE AIRCRAFT LANDED IN A FIELD APPROX. 1/2 MILE FROM THE SOUTH END OF CLOW AIRPORT. NO DAMAGE OR FIRE TO THE AIRCRAFT. NO INJURIES TO THE COMMERCIALLY RATED PILOT. NOTHING FOLLOWS.