What was found
(CAN) AFTER TAKEOFF THE MASTER CAUTION LIGHT ILLUMINATED FOLLOWED BY THE OVERHEAD NR 2 ENGINE REVERSER LIGHT AND THE NR 2 ENGINE CONTROL LIGHT. CREW ELECTED TO RETURN TO DEPARTURE AIRPORT FOR MAINTENANCE AND LANDED UNEVENTFULLY. FOLLOWING THE PROCEDURE IAW MEL 78-1-1 THE NR 2 THRUST REVERSER WAS DEACTIVATED AND SECURED. SUBSEQUENT TROUBLE SHOOTING REVEALED THE FOLLOWING FAULT CODES: V148, L SLEEVE SYNC POWER, S833, HYD ISOLATION VALVE SENSOR, S834, DIR CONT VALVE SENSOR, V150, R SLEEVE LOCK PWR, S836, R SLEEVE LOCK SENSOR. FURTHER MAINTENANCE ACTIONS FORTHCOMING AND AN UPDATE WILL BE PROVIDED WHEN THE DEFECT IS RESOLVED. FOR FURTHER TROUBLE SHOOTING ON JAN 7/12 MAINTENANCE CARRIED OUT BOEING FIM 78-34 TASK 801. THE THRUST REVERSERS WERE ALSO CYCLED 5 TIMES AND NO FURTHER FAULTS WERE FOUND. AS PER THE FIM TASK THIS IS CONSIDERED AND INTERMITTENT FAULT.