Historical aircraft types

REG	type	ICAO
N740EV	CRJ7	a9f302
N722EV	CRJ7	a9ab72
N614SK	CRJ7	a7ff34
N752SK	CRJ7	aa2311
N604SK	CRJ7	a7d7b5
N755SK	CRJ7	aa2e36