There are 6 Mil MI-171E aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top.
N240XX
2016 Mil MI-171E
Boulder, CO
N241XX
2016 Mil MI-171E
Boulder, CO
N242XX
2016 Mil MI-171E
Boulder, CO
N243XX
2016 Mil MI-171E
Boulder, CO
N244XX
2016 Mil MI-171E
Boulder, CO
N245XX
2016 Mil MI-171E
Boulder, CO