Conscious Aerospace, KLM Royal Dutch Airlines, and Transavia have signed a significant Memorandum of Understanding (MoU) at the Paris Air Show to collaboratively work on a liquid‐hydrogen fuel‐cell retrofit project for the De Havilland Canada Dash 8‐300 regional turboprop aircraft. The partnership aims to equip the aircraft with hydrogen‐electric propulsion, optimize cabin and cargo configurations, assess route viability, and model operational costs in preparation for demonstration flights planned by the end of the decade. This initiative marks a pivotal move towards reducing emissions and noise in regional aviation by harnessing hydrogen fuel‐cell technology. Conscious Aerospace will provide its liquid‐hydrogen powertrain for integration with the Dash 8‐300 airframe, while KLM and Transavia will offer operational insights and financial support. The project emphasizes ecosystem-wide collaboration to pioneer the next phase of hydrogen‐electric retrofit efforts. The aviation industry is seeing a significant shift towards decarbonization, with various companies like ZeroAvia and ATR actively working on sustainable aviation solutions involving hydrogen and electric propulsion. Overcoming technical challenges such as cryogenic fuel storage, hydrogen distribution, and regulatory alignment is crucial for the success of such initiatives. While there are obstacles to overcome, industry momentum is growing with active regulatory discussions, commitment to exploring electrical and hydrogen propulsion, and government support for sustainable aviation solutions. The collaboration between industry players, regulators, and operators signals a positive direction towards eco-friendly aviation practices.