Exeter Airport in the UK recently conducted a groundbreaking demonstration highlighting the potential of hydrogen in reducing carbon footprint in ground handling operations. The trial, in partnership with TUI, Cranfield University, ULEMCo, MULAG, and Boeing, saw a TUI Boeing B737 undergo a turnaround using hydrogen-powered GSE. This initiative, aimed at achieving the first 'zero-carbon turn', featured hydrogen-powered baggage tractor, pushback tractor, and ground power unit – a UK first for multiple hydrogen assets used simultaneously for commercial aircraft. The project aligns with the UK Civil Aviation Authority's Hydrogen Challenge, focusing on regulatory and operational aspects of hydrogen integration in aviation. Exeter Airport's Managing Director emphasized the importance of sustainability and innovation in such trials, recognizing regional airports as key players in embracing hydrogen technologies. TUI's director highlighted the commitment to emissions reduction, showcasing hydrogen's role in sustainable aviation practices. A study in preparation for the trial revealed significant emissions from diesel fuel in ground handling, with hydrogen technologies offering a promising solution. Overall, the trial signifies a step forward in real-world application of sustainable technologies in the aviation industry, with potential for substantial environmental benefits.