What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Flight CAA291 atl to avl, on approach to avl left propeller went to overspeed (engine computer read 160%). Pilot completed emergency checklist for propeller overspeed greater than 110%. Propeller did not feather, engine turbine failed during event. Manufacturer noted "that the engine will catastrophically fail at approximately 140% np including at least partial destruction of all shafts." Pilot reported a loss of 60 knots, he nosed the aircraft over to gain airspeed, declared "mayday" and landed at avl without further incident. All engine and propeller components were quarantined and are being sent to the component manufacturer for tear down and analysis. Tear down reports to follow.
As the FAA filed it
(-23) FLIGHT CAA291 ATL TO AVL, ON APPROACH TO AVL LEFT PROPELLER WENT TO OVERSPEED (ENGINE COMPUTER READ 160%). PILOT COMPLETED EMERGENCY CHECKLIST FOR PROPELLER OVERSPEED GREATER THAN 110%. PROPELLER DID NOT FEATHER, ENGINE TURBINE FAILED DURING EVENT. MANUFACTURER NOTED "THAT THE ENGINE WILL CATASTROPHICALLY FAIL AT APPROXIMATELY 140% NP INCLUDING AT LEAST PARTIAL DESTRUCTION OF ALL SHAFTS." PILOT REPORTED A LOSS OF 60 KNOTS, HE NOSED THE AIRCRAFT OVER TO GAIN AIRSPEED, DECLARED "MAYDAY" AND LANDED AT AVL WITHOUT FURTHER INCIDENT. ALL ENGINE AND PROPELLER COMPONENTS WERE QUARANTINED AND ARE BEING SENT TO THE COMPONENT MANUFACTURER FOR TEAR DOWN AND ANALYSIS. TEAR DOWN REPORTS TO FOLLOW.