As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB-OUT OF LCK, THE LEFT ENGINE AUTOFEATHERED. THE CREW DECLARED AN EMERGENCY AND RETURNED TO LCK WITH NO FURTHER PROBLEMS. THE MECHANIC FOUND A SHEARED SHAFT ON THE FUEL PUMP. THE ENGINE CHECKED GOOD IAW THE FOKKER MM AFTER THE FUEL PUMP WAS REPLACED.