As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GNDED. FLIGHT CREW REPORTED THAT THE LT OTBD AILERON WAS OSCILLATING & FLUTTERING RHYTHMICALLY DURING CRUISE & DECLARED AN EMER AS A PRECAUTIONARY MEASURE WHERE THE ACFT LANDED SAFELY WITHOUT FURTHER INCIDENT & TAXIED TO THE GATE UNDER ITS OWN POWER. REPLACED THE LT OTBD AILERON SERVO CONTROL 10CS1 & ACCOMPLISHED A SATISFACTORY LEAK & OPERATIONAL CHECK IAW AMM 27-14-51.