Historical aircraft types

REG	type	ICAO
PR-YJA	A21N	e49512
PR-YJF	A21N	e49830
PR-YRK	A20N	e4936a
PR-YRQ	A20N	e493d1
PR-YSG	A20N	e4962d
PR-YJE	A21N	e497ae