Historical aircraft types

REG	type	ICAO
N571GJ	CRJ7	a752bf
N792SK	CRJ7	aac10d
N767SK	CRJ7	aa5d23
N532GJ	CRJ7	a6b87a
N573GJ	CRJ7	a75a2d
N531GJ	CRJ7	a6b4c3