IndiGo Signs Record 1000 LEAP-1A Engine MoU with CFM

Indian low-cost carrier IndiGo and CFM International signed a Memorandum of Understanding (MoU) on July 20, 2026, for more than 1,000 LEAP-1A engines to power 510 Airbus A320neo Family aircraft. The agreement, finalized at the Farnborough International Airshow, represents the largest single order for LEAP engines in the manufacturer’s history.

The procurement completes the engine selection for IndiGo’s outstanding narrowbody order book and includes a long-term material services agreement. According to a press release issued by GE Aerospace, the deal also provides support for establishing a new engine maintenance, repair, and overhaul (MRO) facility for the airline. CFM International operates as a 50/50 joint venture between GE Aerospace and Safran Aircraft Engines.

Record-setting engine procurement

The MoU covers the power requirements for a specific segment of IndiGo’s future fleet. Reporting by Aviation Week indicates the order breaks down to engines for 135 undecided Airbus A320neos and 375 undecided Airbus A321neos. The airline currently operates more than 430 aircraft, with over 375 A320 and A321 Family jets already supported by CFM.

Incoming IndiGo Chief Executive Officer Willie Walsh, who officially assumes the role by August 2026, stated the LEAP engine’s reliability makes it the ideal choice to support the carrier’s scale and operational resilience.

“As IndiGo embarks on its next phase of growth towards becoming a truly global airline, we are delighted to extend our long-standing partnership with CFM International for the engines powering future deliveries of our Airbus A320/321neo Family aircraft fleet,” Walsh said in the company statement.

GE Aerospace Chairman and Chief Executive Officer H. Lawrence Culp, Jr. noted the engines are delivering up to twice the time on wing in hot and harsh operating environments compared to their initial entry into service.

Transitioning the narrowbody fleet

The massive LEAP-1A commitment finalizes IndiGo’s pivot away from the Pratt & Whitney PW1100G geared turbofan (GTF) engine. Aviation Week reported the airline previously faced the grounding of up to 75 aircraft due to GTF durability problems and powder metal defect issues.

IndiGo began its relationship with CFM in 2016 with a sub-fleet of Airbus A320ceo Family aircraft powered by CFM56-5B engines. The carrier deepened that partnership in 2019 by selecting the LEAP-1A for its initial batch of Airbus A320neo and A321neo aircraft. The July 20 agreement ensures the remainder of the airline’s narrowbody deliveries will utilize CFM propulsion.

AirPro News analysis

We view this 1,000-engine MoU as a definitive operational reset for IndiGo as it prepares for leadership under Willie Walsh. The carrier’s previous exposure to Pratt & Whitney GTF supply chain and durability constraints severely impacted capacity. By standardizing the remaining 510 A320neo Family deliveries on the LEAP-1A, IndiGo is prioritizing fleet availability and predictable maintenance intervals over a split-engine strategy. The inclusion of localized MRO support in the agreement also signals a maturation of India’s domestic aviation infrastructure, reducing the airline’s reliance on constrained global overhaul facilities.

Sources: GE Aerospace