Air Niugini leases Avro RJ7031 May, 1999 in News tagged Air Niugini / National Jet Systems (NJS) (updated on 2016-03-14) Avro RJ70 VH-NJW (msn E1223) of National Jet Systems (NJS) began a four-month wet-lease to Air Niugini on 15 May. Tweet