As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 324 - EWR - THE NR 1 ENGINE BEGAN TO SURGE SEVERELY AFTER TAKEOFF FROM EWR. ALL ENGINE GAUGES WERE SHOWING SURGE AND IT COULD BE FELT. THE ENGINE WAS NOT SHUTDOWN. THE AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 1 ENGINE FUEL CONTROL UNIT AT FAULT. THE NR 1 ENGINE FCU WAS REMOVED AND REPLACED. ALL ENGINE PARAMETERS CHECKED GOOD. (M)