What was found
ON GEAR RETRACTION, GEAR RETRACTED NORMALLY, WITH WHITE UP MESSAGES. AFTER ABOUT 30 SECONDS A YELLOW GEAR IN TRANSIT MESSAGE APPEARED ON THE RT MAIN GEAR, FOLLOWED CLOSELY BY A RED GEAR STUCK IN TRANSIT MESSAGE. PUT GEAR DOWN, RECEIVED THREE GREEN AND EXTENDED NORMALLY. MADE NORMAL LANDING. TROUBLESHOT TO A FAULTY RT MLG DOOR PROX SWITCH (AFT). REMOVED SWITCH ASSY AND REPLACED WITH A NEW ASSY, PERFORMED ADJUSTMENTS AND OPS CHECKS, AND ALL CHECKED GOOD AT THIS TIME. WORK DONE IAW MM, CHP 32-10-11.