American Airlines has announced a significant step towards sustainable aviation by entering into a conditional purchase agreement with ZeroAvia, a clean aviation innovator, for 100 hydrogen-electric engines designed to power regional jet aircraft with zero inflight emissions, except for water vapor. This move is part of American's increased investment in ZeroAvia as the company works on developing hydrogen-electric engines for commercial aircraft, starting with flight testing a prototype for a 20-seat plane and expanding to larger aircraft like the Bombardier CRJ700. The partnership aims to accelerate the development of technologies necessary for a low-carbon future in aviation. ZeroAvia's innovative engines utilize hydrogen in fuel cells to produce electricity, powering electric motors that drive the aircraft's propellers. The emissions from this process are minimal, with only low-temperature water vapor being released, offering potential cost savings and sustainability benefits. American Airlines' CEO, Robert Isom, highlighted the importance of investing in clean propulsion technologies to support the industry's transition to a low-carbon future and ensure the airline's sustainability for years to come. ZeroAvia's Founder and CEO, Val Miftakhov, expressed appreciation for American's support in advancing clean aircraft propulsion and indicated that the partnership signifies progress towards achieving ZeroAvia's technology goals. This collaboration between American Airlines and ZeroAvia showcases a positive outlook towards hydrogen-electric propulsion systems in commercial aviation, emphasizing the commitment to innovation, sustainability, and environmentally friendly operations in the industry.