AviationNews – The International Air Transport Association (IATA), in collaboration with strategy consultancy Emerton, has published an alarming study warning of severe maintenance, repair, and overhaul (MRO) capacity constraints affecting single-aisle aircraft engines. The joint report demands immediate global industry intervention to address prolonged supply chain gridlocks surrounding next-generation powerplants, which currently jeopardize airline network stability worldwide.
The comprehensive study, released on June 24, 2026, highlights the compounding operational pressures facing commercial operators relying on CFM International’s LEAP and Pratt & Whitney’s Geared Turbofan (GTF) engine programs. Persistent shortages of critical components, raw materials, and skilled labor have dramatically restricted access to the aviation aftermarket, extending traditional engine shop visit times well beyond historical baselines. These structural bottlenecks force global carriers into costly, complex fleet planning adjustments, such as deferring the retirement of older aircraft and securing expensive short-term wet leases to prevent widespread flight cancellations.
Technically, the modern architectural complexities of both the LEAP and GTF powerplants require highly specialized manufacturing tolerances and raw materials, leaving them uniquely vulnerable to component scarcity. The study reveals that these advanced systems suffer from significantly reduced “time on wing” metrics, meaning engines must undergo unscheduled shop visits far sooner than initially projected by manufacturers. This operational reality creates a massive backlog at global MRO facilities, where limited testing cell availability and a shortage of spare parts delay the return of grounded narrowbody aircraft to active passenger service.
Emphasizing the financial and logistical strain on commercial operators, an IATA spokesperson stated that structural aftermarket bottlenecks are directly eroding the efficiency gains promised by next-generation fleets. The representative warned that without an immediate, coordinated injection of manufacturing capacity and accelerated spare parts distribution from original equipment manufacturers (OEMs), airlines will face unprecedented resource constraints during peak travel seasons.
The findings signal that global aviation infrastructure must urgently diversify its component supply networks and invest in localized overhaul facilities to build long-term operational resilience. Stakeholders across the aerospace supply chain must actively collaborate to standardize repair procedures and unlock backlogged raw material pipelines before fleet disruptions permanently impact international passenger capacity.
In conclusion, the joint IATA and Emerton report underscores how technical component scarcity threatens to stall the post-pandemic modernization of global airline networks. As narrowbody aircraft continue to serve as the backbone of domestic and regional travel, stabilizing the next-generation engine supply chain remains paramount for industry health.