Historical aircraft types

REG	type	ICAO
N575DN	A21N	a76154
N541DE	A21N	a6dbf3
N510DE	A21N	a661bf
N520DE		a6893e
N526DE	A21N	a69f88
N585DN	A21N	a788d3
N501DA	A21N	a63df3
N532DN	A21N	a6b833
N533DT	A21N	a6bbef