Insert, EndYear: 02/28/1981

Used in models:340, 2130, 4140, 445, 4030, 5500-SERIES, 4400, 3500, 4040, 540A, 4130, 445A, 5550-SERIES, 655A, 340A, 535, 4410, 420, 340B, 555B, 545A, 450, 3550, 540B, 1871, 1841, 1881, 1821, 1801, 555A, 1811, 2030, 532, 455, 515, 4500, 2110TR, 601, 5340, 681, 961, 650, 600, 7600C, 850, 5610, 6600, 621, 4121, 3000-SERIES, 2120, 860, 6600C, 701, 900, 700, 501, 4131, 630, 2131, 620, 7610O, 2031, 800, 7000-SERIES, 541, 671, 741, 6410, 840, 4000-SERIES, 950, 2111, 960, 971, NAA, 6610O, 771, 5200, 740, 640, 2000-SERIES, 611, 5000-SERIES, 861, 951, 5600, 820, 941, NAB, 5110, 6600O, 4031, 6000, 851, 631, 901, 651, 7200, 5100, 6810, 4120, 7100, 4110TR