U.S. Federal Aviation Administration (FAA) has reportedly given the green light to Boeing Co BA to initiate crucial flight tests on its 737 MAX 10 aircraft, marking a significant step toward readying the jet for commercial operations. The FAA approval sets the stage for Boeing's initial deliveries scheduled for the upcoming year. Citing the communication addressed to employees, the Wall Street Journal notes that the 737-10 is the largest offering within Boeing's MAX family of single-aisle planes.