NG Models American Airlines Boeing 737-800 N915NN 1:200 Diecast Model1: 200 Diecast: American Airlines Boeing 737 823 N915NN "TWA Heritage" (NG Models NG08053) N915NN, MSN 33227, rolled off Boeing's Renton line with a first flight on January 14, 2013, and was delivered to American Airlines on January 31, 2013. The 823 subvariant belongs to the 737 Next Generation family and carries two CFM56 7B26 turbofans. In November 2015, American repainted this airframe in the TWA Heritage livery one of a series of tribute schemes