What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Aircraft experienced a sudden engine stoppage due to a mechanical interruption during cruise flight resulting in a forced landing. Engine teardown revealed partial desentigration of intake and exhaust valve lifter bodies in cylinder #3. Cylinder #4 exhaust lifter body entirely desentigrated while the #4 intake lifter body was partially desentigrated.
As the FAA filed it
AIRCRAFT EXPERIENCED A SUDDEN ENGINE STOPPAGE DUE TO A MECHANICAL INTERRUPTION DURING CRUISE FLIGHT RESULTING IN A FORCED LANDING. ENGINE TEARDOWN REVEALED PARTIAL DESENTIGRATION OF INTAKE AND EXHAUST VALVE LIFTER BODIES IN CYLINDER #3. CYLINDER #4 EXHAUST LIFTER BODY ENTIRELY DESENTIGRATED WHILE THE #4 INTAKE LIFTER BODY WAS PARTIALLY DESENTIGRATED.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.