Historical aircraft types

REG	type	ICAO
N37555		a44983
N17593	B39M	a12f6f
N27511	B39M	a2bba4
N17599	B39M	a12f75
N17402	B39M	a12a7c
N17406	B39M	a12a80
N27568	B39M	a2bc5a