What was found
DURING CLIMB OF THE FLIGHT FROM IAD TO GSP, THE CREW REPORTED THAT UPON LANDING GEAR RETRACTION HAD NO INDICATION OF GEAR RETRACTION ON THE FLIGHT DECK. THE THREE GREEN GEAR DOWN/LOCKED INDICATORS REMAINED ILLUMINATED. THE CREW REPORTED, RECEIVED ANTI-SKID OUTBOARD AND PARKING BRAKE SOV FAIL MESSAGES. MAINTENANCE PERSONNEL REMOVED AND REPLACED THE LANDING GEAR SELECTOR. LANDING GEAR EXTENSION/RETRACTION OPERATIONAL CHECKS WERE SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE.