What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Aircraft departed kcps on an IFR flight plan flying in IMC flight conditions. PIC was cleared to climb from 3000 to 7000. Approaching 5000 the aircraft struggled to climb. Pc applied full power only able to maintain 85 KIAS and 100-200 fpm rate of climb. The carburateror heat was applied with no change. The PIC turned the carburetor heat off. PIC requested a clearance to return to kcps. ATC reported the weather conditions were deteriorating at kcps and recommended landing at kblv. PIC accepted the ATC recommendation. The PIC did not declare an emergency. Vectors were provided for the 14 localizer approach at kblv. PIC again turned on the carburetor heat switch on for the duration of the flight. This did not help. PIC switched fuel tanks and adjusted the mixture control with no positive results. PIC report the engine power continued to deteriorate and he determined he could not make it to the runway. The aircraft broke out of the clouds at approximately 400 feet above ground level and landed in a plowed field. There were no injuries and no apparent damage to the aircraft. After landing the PIC notified flight service of the approximate location and there were no injuries.
As the FAA filed it
AIRCRAFT DEPARTED KCPS ON AN IFR FLIGHT PLAN FLYING IN IMC FLIGHT CONDITIONS. PIC WAS CLEARED TO CLIMB FROM 3000 TO 7000. APPROACHING 5000 THE AIRCRAFT STRUGGLED TO CLIMB. PC APPLIED FULL POWER ONLY ABLE TO MAINTAIN 85 KIAS AND 100-200 FPM RATE OF CLIMB. THE CARBURATEROR HEAT WAS APPLIED WITH NO CHANGE. THE PIC TURNED THE CARBURETOR HEAT OFF. PIC REQUESTED A CLEARANCE TO RETURN TO KCPS. ATC REPORTED THE WEATHER CONDITIONS WERE DETERIORATING AT KCPS AND RECOMMENDED LANDING AT KBLV. PIC ACCEPTED THE ATC RECOMMENDATION. THE PIC DID NOT DECLARE AN EMERGENCY. VECTORS WERE PROVIDED FOR THE 14 LOCALIZER APPROACH AT KBLV. PIC AGAIN TURNED ON THE CARBURETOR HEAT SWITCH ON FOR THE DURATION OF THE FLIGHT. THIS DID NOT HELP. PIC SWITCHED FUEL TANKS AND ADJUSTED THE MIXTURE CONTROL WITH NO POSITIVE RESULTS. PIC REPORT THE ENGINE POWER CONTINUED TO DETERIORATE AND HE DETERMINED HE COULD NOT MAKE IT TO THE RUNWAY. THE AIRCRAFT BROKE OUT OF THE CLOUDS AT APPROXIMATELY 400 FEET ABOVE GROUND LEVEL AND LANDED IN A PLOWED FIELD. THERE WERE NO INJURIES AND NO APPARENT DAMAGE TO THE AIRCRAFT. AFTER LANDING THE PIC NOTIFIED FLIGHT SERVICE OF THE APPROXIMATE LOCATION AND THERE WERE NO INJURIES.