What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
07/31/2017 1820MST; 0120Z, N8725, Columbia 400 LC41-550FG aircraft lost engine power, declared and emergency and made a forced landing in a farm field about 6 miles south of (chd) Chandler airport. 4-POB, 0-injuries, minor-damage. Engine threw rod which cracked a hole in the case and the engine lost oil. At the teardown it was noticed that there was a small dent on the oil pump internal to the engine which led to the internal blockage of oil causing the failure of the engine overall. Investigation continues into whether that dent was the initial cause of engine failure. Amendment will be applied when available. The operation of the aircraft played no baring into the cause of the incident.
As the FAA filed it
07/31/2017 1820MST; 0120Z, N8725, COLUMBIA 400 LC41-550FG AIRCRAFT LOST ENGINE POWER, DECLARED AND EMERGENCY AND MADE A FORCED LANDING IN A FARM FIELD ABOUT 6 MILES SOUTH OF (CHD) CHANDLER AIRPORT. 4-POB, 0-INJURIES, MINOR-DAMAGE. ENGINE THREW ROD WHICH CRACKED A HOLE IN THE CASE AND THE ENGINE LOST OIL. AT THE TEARDOWN IT WAS NOTICED THAT THERE WAS A SMALL DENT ON THE OIL PUMP INTERNAL TO THE ENGINE WHICH LED TO THE INTERNAL BLOCKAGE OF OIL CAUSING THE FAILURE OF THE ENGINE OVERALL. INVESTIGATION CONTINUES INTO WHETHER THAT DENT WAS THE INITIAL CAUSE OF ENGINE FAILURE. AMENDMENT WILL BE APPLIED WHEN AVAILABLE. THE OPERATION OF THE AIRCRAFT PLAYED NO BARING INTO THE CAUSE OF THE INCIDENT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.