Complex sentence: In January 2014 no examples remained registered in the United States with the Federal Aviation Administration, although one aircraft had been registered in 1997, it was listed as destroyed and deregistered in 2002.
Split into simpler sentences: In January 2014 no examples remained registered in the United States with the Federal Aviation Administration. Although one aircraft had been registered in 1997, it was listed as destroyed and deregistered in 2002.