Historical aircraft types

REG	type	ICAO
N7746C	B737	aa7b10
N447WN	B737	a5669f
N937WN	B737	ad01ab
N272WN	B737	a2afeb
N8672F	B738	abeb7c
N424WN	B737	a50c7c
N7731A	B737	aa76a8