The U.S. Federal Aviation Administration (FAA) and the European Union Aviation Safety Agency (EASA) have jointly certified an updated high-pressure turbine (HPT) hardware durability kit for the CFM LEAP-1A engines that power Airbus A320neo-family aircraft. This new kit, designed to extend time on wing in demanding conditions, includes improved HPT Stage 1 blades, Stage 1 nozzles, and forward inner nozzle supports.
Gaël Méheust, President and CEO of CFM International, stated, “This new hardware is fulfilling our promise to ensure that LEAP engines achieve the same level of maturity, durability and time on wing that our customers have enjoyed with the CFM56 product line.”
To address durability challenges in extreme environments, CFM collaborated with geologists to create artificial dust that replicated the abrasive conditions faced by engines globally. A proprietary dust ingestion system allowed CFM to simulate HPT blade wear experienced in the field. These realistic conditions enabled the company to design, test, and validate improvements to enhance the durability and operational longevity of these critical engine components.
The CFM LEAP-engine family has set a benchmark in fuel efficiency, offering 15–20% lower fuel consumption and CO2 emissions compared to earlier-generation engines, along with significant noise reduction. With over 3,500 LEAP-powered aircraft currently in service, the engines have helped CFM customers collectively avoid more than 40 million tonnes of CO2 emissions.
Since its introduction, the LEAP engine has become the most successful new product in CFM’s 50-year history. It has achieved an unprecedented industry milestone, surpassing 60 million engine flight hours in just eight years, marking the fastest operational ramp-up ever recorded in aviation.
