The CFM International LEAP ("Leading Edge Aviation Propulsion") is a high-bypass turbofan engine produced by CFM International, a 50–50 joint venture between the American GE Aerospace and the …

Designed to meet the challenge of decarbonizing air transport, the LEAP-1B engine offers Boeing 737 MAX operators enhanced performance in terms of fuel consumption and CO2 emissions (15% lower …

Jun 19, 2025 · Our flagship product, the LEAP engine, is a testament to our commitment to excellence, offering high fuel efficiency, reduced emissions, and lower noise levels.

Jun 18, 2025 · The recommendations stem from the NTSB’s investigation into a December 2023 incident in which smoke entered the airplane after a bird was ingested into the left engine of a …

CFM International’s advanced LEAP product line is the engine of choice to power Airbus A320neo family, Boeing 737 MAX, and COMAC C919 aircraft.

The LEAP engine family from CFM International—a consortium comprising GE Aerospace and Safran Aircraft Engines—includes three different models covering a thrust range from 23,000 to 35,000 …

On June 18, 2025, the NTSB issued an urgent safety recommendation over fears that smoke could enter the cockpit or cabin of aircraft equipped with LEAP-1B engines. The safety agency also issued …

Jan 3, 2023 · The CFM International LEAP (Leading Edge Aviation Propulsion) engines are high-bypass ratio turbofan engines that power the Boeing 737 MAX family of aircraft. The -1B model of the engine …

The LEAP-1B ® has been selected by Boeing as the exclusive powerplant for the new 737 MAX single-aisle jetliner.

Boeing has been steadfast since then in sticking to the LEAP-1B as the sole engine for all versions of the Boeing 737 MAX. However, re-engining for the Boeing 737 MAX was not a simple engineering …