As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LGA - CREW REPORTED ON ARRIVAL A LOUD VIBRATION OCCURED ON THE RIGHT ENGINE. ENGINE WAS SHUTDOWN (SINGLE ENGINE TIME 10 MINS). EMERGENCY DECLARED FLIGHT LANDED LGA WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RIGHT ENGINE AT MIA ON 03/31/2012. SYSTEM GROUND CHECK NORMAL OPERATION.