Cranfield University has played a crucial role in the milestone achievement of the UK's first hydrogen-powered commercial aircraft turnaround at Exeter Airport. The collaboration involved a consortium of partners showcasing the use of 'green' hydrogen in various ground operations of a TUI Boeing 737. This demonstration marked a significant step towards decarbonising airport ground operations and understanding the safe deployment of hydrogen in aviation. The project, part of the CAA's Hydrogen Challenge, focuses on regulatory, safety, and operational challenges of integrating hydrogen into the aviation sector. Experts from Cranfield University provided essential insights into emissions analysis, systems integration, and risk management, which will facilitate future standards and innovations for achieving net zero aviation. The successful trial not only validates the immediate potential of hydrogen as a decarbonising fuel but also sets the foundation for developing regulatory frameworks to support hydrogen aircraft in the future. The collaboration's holistic approach highlights the necessity of addressing all ground vehicles to achieve net zero aviation goals. Various stakeholders, including Exeter Airport, ULEMCo, MULAG, and Boeing, expressed optimism about the versatility and practicality of hydrogen fuel in diverse applications, showcasing its potential for cost-effective decarbonisation solutions. This successful demonstration not only underlines the promise of hydrogen in aviation but also emphasizes the importance of sustainable practices and innovation in the industry.