Boeing is reporting a $149 million loss for the second quarter despite higher revenue, as the plane maker struggles with higher costs in both its airline and defense business. CEO David Calhoun said Wednesday that Boeing has “more work ahead” but is making progress in stabilizing its factories and supply chain. Boeing says it's starting to boost production of its two most popular airline planes, the 737 Max and the 787 Dreamliner, to take advantage of demand for newer, more fuel-efficient planes. However, the company is continuing to see problems with its supply chain, which continued in the second quarter.