What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Aircraft experienced #1 engine shutdown in flight. Aircraft landed without incident.
Engine was removed and sent to a contract maintenance facility to be torn down. Teardown indicated the compressor section of engine did not sustain damage from FOD. Significant damage was noted in the compressor and power section turbine areas. Damage was noted to the compressor turbine vane ring that could have been indicative of poor fuel nozzle flow. Repair facility did flow check nozzles and indicated no anomalies were found at that time. Repair facility recommended that the fuel control be bench checked prior to re-installation. This bench check is not being done at this time. Due to the engine repair cost versus value of the engine, the repair has been ceased to search for another serviceable engine.
Cause of turbine sections damage is unknown at this time.
As the FAA filed it
AIRCRAFT EXPERIENCED #1 ENGINE SHUTDOWN IN FLIGHT. AIRCRAFT LANDED WITHOUT INCIDENT.
ENGINE WAS REMOVED AND SENT TO A CONTRACT MAINTENANCE FACILITY TO BE TORN DOWN. TEARDOWN INDICATED THE COMPRESSOR SECTION OF ENGINE DID NOT SUSTAIN DAMAGE FROM FOD. SIGNIFICANT DAMAGE WAS NOTED IN THE COMPRESSOR AND POWER SECTION TURBINE AREAS. DAMAGE WAS NOTED TO THE COMPRESSOR TURBINE VANE RING THAT COULD HAVE BEEN INDICATIVE OF POOR FUEL NOZZLE FLOW. REPAIR FACILITY DID FLOW CHECK NOZZLES AND INDICATED NO ANOMALIES WERE FOUND AT THAT TIME. REPAIR FACILITY RECOMMENDED THAT THE FUEL CONTROL BE BENCH CHECKED PRIOR TO RE-INSTALLATION. THIS BENCH CHECK IS NOT BEING DONE AT THIS TIME. DUE TO THE ENGINE REPAIR COST VERSUS VALUE OF THE ENGINE, THE REPAIR HAS BEEN CEASED TO SEARCH FOR ANOTHER SERVICEABLE ENGINE.
CAUSE OF TURBINE SECTIONS DAMAGE IS UNKNOWN AT THIS TIME.