What was found
AIRCRAFT WAS NOT GROUNDED: AIRCRAFT RETURNED TO BOS, AFTER TAKEOFF GOT ECAMS FLIGHT CONTROL RIGHT AILERON FAULT, FLIGHT CONTROL AILERON SERVO FAULT. AIRCRAFT WAS DIFFICULT TO CONTROL. THE AIRCRAFT LANDED SAFELY AT BOS WITHOUT FURTHER INCIDENT. FLIGHT CREW REPORTED AFTER LANDING ECAMS FOR LEFT AILERON FAULT, RIGHT AILERON FAULT AND #1 ELEVATOR /AILERON COMPUTER FAULT. MAINTENANCE ACCOMPLISHED TSM 27-10-00-810-844-A AND FOUND MESSAGE ELEVATOR /AILERON COMPUTER #2 AILERON ORDER DISAGREE AND REPLACED THE #2 ELEVATOR /AILERON COMPUTER (ELAC) PER AMM 27-93-34. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.