What was found
THE FLIGHT CREW REPORTED THAT WHILE COMPLETING THE AFTER LANDING CHECKLIST AND STOWING THE SPEED BRAKES, THE RIGHT WING 3 MIDDLE PANELS INDICATING STILL IN THE UP/DEPLOYED POSITION. THIS CAUSED THE AIRCRAFT TO BE GROUNDED AND NOT ABLE TO COMPLETE FLIGHT REQUIREMENTS. THE MAINTENANCE VENDOR ADJUSTED THE RIGHT SPEED BRAKE RVDT ASS REQUIRED WITH NO FURTHER DEFECTS NOTED. THE AIRCRAFT WAS RETURNED TO SERVICE.