Historical aircraft types

REG	type	ICAO
N513DA	A21N	a66ce0
N502DX		a641bf
N503DZ	A21N	a64578
N546DN	A21N	a6ee8e
N511DE	A21N	a66576
N549DN	A21N	a6f9b3
N544DN	A21N	a6e720