As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATL/PIT - FLT 592 - EN ROUTE, LT ENGINE BEGAN TO VIBRATE SEVERELY. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT CONTINUED TO THE DISTINATION AND LANDED WITHOUT INCIDENT. 12 MINUTES SINGLE ENGINE TIME. MAINTENANCE REPLACED THE LEFT ENGINE. (X)