 On 23 June 2015, the first of the original 18 NATO E-3A AWACS aircraft to retire, arrived at Davis-Monthan AFB near Tucson, AZ.The aircraft, LX-N 90449, will be placed in parts reclamation storage where critical parts will be removed by NATO technicians to support their remaining fleet of 16 Boeing E-3A aircraft.It had accumulated 22,206 flight hours between 19 August 1983 and 13 May 2015 and operated out of twenty-one different countries in support of NATO activities.