Actually we kept the 9020's through the 80's for flight plan processing and through the 90's for radar processing. All the units finally replaced with the HOST computers and then the third iteration of the HOST was called HOCSR and came about for Y2K as well as sustainment issues. The newer DCCR radar display computer was replaced by DSR a couple of years ago. All of this however still running on that wonderful legacy software called NAS.
I was in DC all this week getting briefed on ERAM and hopefully we will finally begin going forward on that procurement. But as some may have read, one of the contractors already has filed a protest and I hope that it is over quickly. This appears to have as much of a possibility of being a change no more less than when we went from conventional separation to radar by the time the entire program is finished...
regards