Historical aircraft types

REG	type	ICAO
JA73NM	B738	8681b3
JA73NK	B738	8681b1
JA737U	B738	86803e
JA73NN	B738	8681b4
JA73AC	B738	86808a
JA737R	B738	86803b
JA737N	B738	868038