What was found
RIGHT MAIN GEAR DOOR LIGHT CAME ON AT 12,000 FT DURING DESCENT AT 340 KIAS. CYCLED GEAR AND ALL LIGHTS WENT OUT IND NORMAL. *S/D* REMOVED WATER FROM RIGHT GEAR DOOR LOCK CONDUIT. REMOVED AND REPLACED D752 CANNON PLUG, OPER CK GOOD AS PER MM 32-62-0.