Historical aircraft types

REG	type	ICAO
PR-GUN	B738	e48afd
PR-GEC	B737	e48855
PR-GUB	B738	e48502
PR-GXA	B738	e48db0
PR-GUH	B738	e48854
PR-GXT	B738	e48fb4
PR-GXR	B738	e48f04
PR-GEK	B737	e4926f