what are all of the serial numbers?
83-1010, 83-1011, 83-1012, 83-1013, 83-1014, 83-1015, 83-1016, 83-1017, 83-1018, 83-1019
and when did they enter service?
march 1983, august 1983, september 1983, october 1983, december 1983, november 1983, february 1984, april 1984, june 1984, july 1984
which serial number was the last to enter service?
83-1019