What was found
FLIGHT 5320 - EN ROUTE CVG-GSO ENCOUNTERED SURGING OF THE LEFT ENGINE N1 AND N2, FLIGHT RETURNED TO CVG. DEFERRED THE ENGINE SPEED CONTROLLERS PER MEL 76-11-01.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 5320 - EN ROUTE CVG-GSO ENCOUNTERED SURGING OF THE LEFT ENGINE N1 AND N2, FLIGHT RETURNED TO CVG. DEFERRED THE ENGINE SPEED CONTROLLERS PER MEL 76-11-01.