​ZeroAvia’s Hydrogen-Powered Aircraft Experiences “Off-Airport Landing”

On April 29th, 2021, ZeroAvia’s R&D aircraft made an off-airport landing just outside Cranfield airport perimeter during a routine pattern test flight (logged as ZeroAvia Test 86, and the 6th flight in this flight testing segment). The aircraft landed normally on its wheels in a flat grass field and almost came to a stop, but was damaged as it caught the left main gear and wing in the uneven terrain at the end of the field at low speed. Everybody involved is safe, and without injury. The incident was immediately reported to the Air Accidents Investigation Branch (AAIB), and the Fire Service attended on the ground, as is the standard procedure.

The facts as they stand now are as follows: the flight conformed to the approved test route over the airport; the structural integrity of ZeroAvia systems was maintained throughout the incident sequence and there were no unintended hydrogen or electrical releases and no fire; after the landing, the crew were able to safeguard the battery and safely release hydrogen from the onboard tanks, following ZeroAvia safety protocol; no fluid leaks were observed at the time; and full data logs were preserved and will be used in our investigation.

Following the flight test incident, ZeroAvia appointed a team of experts to conduct the internal investigation. These individuals, led by Dominic Cheater, ZeroAvia’s Head of Airworthiness, are independent from the design and operation of the HyFlyer I program. Dominic holds extensive expertise in airworthiness, flight test engineering and air safety. He has past experience with major industry names such as Babcock International as Chief of the Office of Airworthiness.

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