PA-60 600 Aerostar
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Commercial; Flight Crew Flight Instructor; Other Commercial
Flight Crew Last 90 Days 60; Flight Crew Total 3640; Flight Crew Type 807
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Landed in Emergency Condition; Flight Crew Diverted
Aircraft
In IMC at 10;000 feet; pilot noted; from left side of airplane; onset of low-level hum/noise and slight vibration; both of which continually increased at slow but consistent rate.  After 30 to 45 seconds; left engine quit abruptly without sound or further tactile indication. Pilot noted that left prop had ceased rotation and was in feather. Pilot immediately asked for priority; requested vectors to nearest long-runway airport; and ran engine-out emergency procedures. Pilot received vector to appropriate airport; commanded still-functioning autopilot to steer vectored heading; and flew aircraft single-engine for approximately 20 miles; landing without injury; damage or incident at vectored airport.
PA-60 Pilot reported that during cruise the left engine stopped abruptly and the propeller self-feathered. Pilot diverted to an appropriate airport and continued to a safe landing.