Historical aircraft types

REG	type	ICAO
PR-YSQ	A20N	e49eca
PR-YSG	A20N	e4962d
PR-YYE	A20N	e49329
PR-YYA	A20N	e494f7
PR-YRW	A20N	e4948c
PR-YYC	A20N	e49388