On Dec. 21, the CFM International team achieved one when its advanced LEAP-1C integrated propulsion system was simultaneously awarded Type Certificates by both the European Aviation Safety Agency (EASA) and the U.S. Federal Aviation Administration (FAA), paving the way for entry into commercial service on the COMAC C919 aircraft.

LEAP Year may come around every four years, but advanced technology like the LEAP engine only comes around once in a generation!