Myanma Airways is set to order up to a dozen Boeing 737 jets on lease in what appears to be the largest single fleet expansion in Burma as the country opens up to business and tourism, aviation industry sources said. The aircraft will be provided by the world’s largest leasing company, General Electric’s aviation leasing arm GECAS, the sources said, asking not to be identified. The decision is expected to be announced at the Singapore Airshow, which runs from Feb. 11 to 16. State-run Myanma Airways, which owns 20 percent of flag carrier Myanmar Airways International, currently flies only domestic routes.—Reuters