As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CUN - CREW REPORTED DURING DESCENT LEFT ENGINE HAD UNCOMMANDED SHUTDOWN WITH NO ABNORMAL INDICATIONS SHOWING (SINGLE ENGINE 5 MINUTES). EMERGENCY DECLARED FLIGHT LANDED CUN WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED FUEL FLOW GOVERNOR. SYSTEM GROUND CHECK NORMAL OPERATION.