NG Models China Southwest Airlines Boeing 737-600 B-2156 1:200 Diecast Model1: 200 Diecast: China Southwest Airlines Boeing 737 600 B 2156 (NG Models NG06012) B 2156 (MSN 28650, line number 932) was built as a Boeing 737 66N a 600 series variant leased through GECAS and delivered to China Southwest Airlines on 31 August 2001. The airline merged into Air China in March 2003, and B 2156 transferred to the Air China fleet. The airframe was withdrawn from service in December 2008. Its story did not end there: the jet was later