NG Models OTT Airlines Comac C909 B-123A 1:200 Diecast Model1: 200 Diecast: OTT Airlines Comac C909 (ARJ21 700) B 123A (NG Models NG20130) B 123A is a COMAC ARJ21 700 (commercial designation C909), MSN 140, with test registration B 001K. The aircraft made its first flight on 13 June 2020 and was delivered to OTT Airlines China Eastern's regional subsidiary, also known as One Two Three Airlines as one of the carrier's early ARJ21 deliveries. OTT Airlines was among the first operators to expand the ARJ21 into