What was found
AFTER GEAR RETRACTION, UPON GEAR HANDLE BEING POSITIONED TO OFF, INBOARD GEAR ANTI-SKID LIGHT ILLUMINATED. LIGHT EXTINGUISHES WITH HANDLE IN UP OR DOWN POSITIONS. AIRCRAFT DIVERTED TO BNA AND MADE AN UNEVENTFUL LANDING. AT HOU, REPLACED RT INBOARD ANTI-SKID VALVE PER BOEING M/M.