The Federal Aviation Administration has cleared Boeing’s 737 MAX 10 to begin the second phase of flight testing as part of its Type Inspection Authorization (TIA) process. The move expands the scope of testing to include avionics, propulsion systems, and other critical systems. Despite regulatory uncertainty, Alaska Airlines has placed a record aircraft order with Boeing, underscoring continued airline demand for the MAX 10. The FAA’s allowance for expanded phase two testing signals incremental confidence in Boeing’s technical fixes, even as the manufacturer continues working through outstanding systems issues and documentation requirements.