What was found
FLT 6222 - JFK-IAD - DURING CLIMB, THE CREW EXPERIENCED A RT MLG INTRANSIT LIGHT ILLUMINATION WITH THE GEAR RETRACTED. AIRCRAFT RETURNED TO JFK AND CREW NOTIFIED MAINTENANCE CONTROL. MAINTENANCE TECHINICAN WAS POSITIONED TO JFK ON NEXT AVAILABLE FLIGHT. MAINTENANCE TECHNICIAN WAS POSITIONED TO JFK ON NEXT AVAILABLE FLIGHT. MAINTENANCE FOUND THAT THE RT MLG UPLOCK SWITCH DISCREPANCY PLUNGER HAD FAILED. DISCREPANCY WAS VERIFIED THAT IT WAS IN INDICATION DISCREPANCY ONLY AND THE AIRCRAFT WAS FERRIED TO IAD. UPON ARRIVAL AT IAD MAINTENANCE REMOVED AND REPLACED THE RT MGL UPLOCK SWITCH, PERFORMED REQUIRED GEAR SWINGS IAW APPROPRIATE MAINTENANCE PROCEDURES. AIRCRAFT WAS THEN RELEASED FOR SERVICE. (M)