What was found
DURING APPROACH THE PILOT SELECTED THE LG HANDLE TO THE EXTEND POSITION, RECEIVED GREEN DOWN & LOCKED LIGHTS ON THE NOSE & LT MAIN GEAR, THE RT MAIN GEAR REMAINED OFF. PILOT TRIED TO MANUALLY EXTEND THE LG WITH THE SAME INDICATION. DIVERTED, DECLARED AN EMER & LANDED WITHOUT FURTHER INCIDENT. TROUBLESHOOTING REVEALED A FAULTY RT MLG DOWN LOCK LIMIT SWITCH. R & R SWITCH. PERFORMED OPERATIONAL CHECK OF LG SYS, ALL SYSTEMS CHECKED WERE NORMAL.