Historical aircraft types

REG	type	ICAO
N579DT	A21N	a77035
N504DZ	A21N	a6492f
N577DN	A21N	a768c2
N6701	B752	a8de33
N582NW	B753	a77e97
N189DN	B763	a16273
N173DZ	B763	a124b5