Helicopter AgustaWestland AW139 Serial 31550 Register HS-UOJ used by United Offshore Aviation ,Weststar Aviation WAS. Aircraft history and location Aircraft History n/a Weststar Aviation Weststar May14, test serial I-EASS for Thailand HS-UOJ United Offshore Aviation 2014-05United Offshore Aviation (UOA) Thailand, lsd Weststar Jun14 2020-10-21 Ipoh, Perak Send Updates Use APP to upload photo @ (optional) When Now? / / Send