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Universal hydrogen
NewsFAA Accepts Universal Hydrogen’s STC Bid for ATR 72 Conversion
The agency also issued guidance to establish certification criteria for the aircraft conversion to electric motors powered by hydrogen fuel cells.
Meg Godlewski![](https://www.flyingmag.com/uploads/2022/07/Universal-hydrogen-ATR72-.jpg?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
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