Helicopter Bell 206B-3 Jet Ranger Serial 3485 Register UP-BL005 UN-B1002 N139C N31PB used by Sky Service. Built 1981. Aircraft history and location Aircraft History For N31PB see also 2003 407 53569 2012 407gx 54321 N31PB - to N139C N139C - 2012-08canc Aug12 UN-B1002 - Kazakhstan, reser UP-BL005 UP-BL005 Sky Service Sky Service Send Updates Use APP to upload photo @ (optional) When Now? / / Send