The Federal Aviation Administration is seeking sanctions against a Colorado company stemming from a 2010 medical-helicopter crash in Arizona that killed the aircraft's three-member crew.

FAA spokesman Ian Gregor tells The Associated Press that the agency wants to lodge a $50,625 fine against Colorado-based Air Methods, the parent company of LifeNet Arizona and the helicopter's operator.

The development comes on the heels of a report by the National Transportation Safety Board that says the July 28, 2010, crash likely was caused by a contract mechanic's mistake and a lack of proper inspection and testing of his work.

The helicopter left Marana, Ariz., and was en route to its home base in Douglas when it fell 600 feet in eight seconds, crashed into a backyard fence in Tucson and burst into flames about six minutes after leaving the ground.