The Boeing Co.’s stock (BA) rose 2% early Wednesday, after the aerospace giant second-quarter earnings fell short of estimates, but the company said it’s making progress in beefing up its quality management system. The company had a net loss of $1.439 billion, or $2.33 a share, wider than the loss of $149 million, or 25 cents a share, posted in the year-earlier period. Adjusted for one-time items, the company’s loss per share came to $2.90, wider than the FactSet consensus for a loss of $1.90. Revenue fell 15% to $16.866 billion from $19.751 billion a year ago, also missing the $17.350 billion FactSet consensus. “Despite a challenging quarter, we are making substantial progress strengthening our quality management system and positioning our company for the future,” said CEO Dave Calhoun in prepared remarks. The company submitted its safety and quality plan to the Federal Aviation Administration during the quarter, while the 737 program gradually increased production. In July, Boeing announced an agreement to buy back Spirit Aerosystems in a $4.7 billion deal. The stock has fallen 28% in the year to date, while the S&P 500 has gained 14%.