As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL FLT 806 EN ROUTE CUN TO PHL. "SPOILER" ADVISORY ON EICAS AFTER STIFF AILERON CONDITION "BROKE FREE" DURING TURN. THE CREW DECLARED AN EMERGENCY COMING IN TO PHL. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED LATERAL CONTROL OVERRIDE AND FEEL/TRIM MECHANISM CENTERING BEARINGS. PERFORMED SATISFACTORY OPERATIONAL CHECK OF AILERON AND TRIM SYSTEM.