BOC Aviation has signed an order for 20 Commercial Aircraft Corp of China (Comac) C919s, bringing the Chinese manufacturer's order backlog for the narrowbody to 235.
The sale marks Comac's first order since the C919 entered the detailed design phase at the end of last year. With the order, BOC has become Comac's 11th customer for the narrowbody.
As of 2011, the C919 project had completed three programme phases: project theoretical study, feasibility study and preliminary development.
Formal production of the first sub-assembly for the aircraft began on 19 December 2011.
Comac aims to fly the C919 in 2014 and receive airworthiness certification for the aircraft in 2016.