As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 8169 - DECLARED AN EMERGENCY AIR TURN BACK IN CUN, ENGINE NR 1 HAD STALL INDICATION ON ELECTRONIC CENTRALIZED AIRCRAFT MONITORING, ENGINE WOULD SURGE. REPLACED ELECTRONIC ENGINE CONTROL. PERFORMED FULL AUTHORITY DIGITAL ENGINE CONTROL OPERATIONS TEST AND ELECTRONIC ENGINE CONTROL TEST. (M)