What was found
AIRCRAFT WAS IN MAINTENANCE TO REPLACE FAULTY RIGHT HAND THRUST REVERSER ACTUATOR. AIRCRAFT WAS RETURNED TO SERVICE ON 03/28/2018. UPON ATTEMPTING TAKEOFF BOUND FOR KAPC, THE CREW REJECTED THE TAKEOFF DUE TO A RIGHT HAND THRUST REVERSER UNLOCK INDICATION. THE AIRCRAFT WAS RETURNED TO GULFSTREAM SERVICE CENTER AND THE LOWER THRUST STOW SWITCH WAS ADJUSTED. AIRCRAFT WAS RETURNED TO SERVICE ON 03/29/2018.