Aircraft Parts Shortages Impact Boeing 737 and Airbus A320 Fleets

This article is based on an official press release from Locatory.

The global aviation aftermarket is currently operating under sustained pressure as airlines push to maximize the utilization of their existing fleets. Facing ongoing constraints in new aircraft deliveries and broader supply chain performance issues, operators are increasingly relying on the parts market to keep their aircraft flying.

These industry-wide pressures are becoming highly visible in real-time sourcing behavior, moving beyond mere forecasts. According to an April 2026 market overview published by Locatory.com, an aviation marketplace, the immediate operational stress across various fleets and maintenance segments can be tracked through parts demand.

The company’s latest report captures the top 50 most searched and 50 hardest-to-find aircraft parts, offering a clear window into the specific components that are currently bottlenecking maintenance operations worldwide.

Sustained Pressure on the Aviation Aftermarket

Fleet Utilization and Supply Chain Constraints

With new aircraft deliveries facing persistent delays, airlines have no choice but to extend the operational life of their current assets. In a company press release, Locatory.com noted that this dynamic has created a structurally driven demand cycle focused heavily on mature narrowbody platforms.

The Boeing 737 Next Generation and Airbus A320ceo fleets continue to dominate sourcing behavior on the marketplace. This concentration of searches underscores the prominence of these legacy aircraft in the global aviation market and highlights the ongoing supply constraints for fleets powered by CFM56 and V2500 engines.

Hardest-to-Find Components and Sourcing Behavior

Critical Rotating Parts and Hardware

Data from Locatory.com reveals that the hardest-to-find parts include critical rotating components, such as high-pressure compressor (HPC) spools and high-pressure turbine (HPT) disks. The scarcity of these specific parts indicates a limited availability of teardown material in the market, which in turn leads to extended repair turnaround times.

Beyond major engine components, the supply chain strain is also affecting smaller, everyday items. Standard hardware and structural fittings, including self-locking nuts, are becoming increasingly difficult for maintenance providers to source. According to industry analysis from ePlaneAI, these shortages mirror broader industry challenges related to serviceable material availability and constrained maintenance, repair, and overhaul (MRO) capacity.

“The aviation aftermarket is operating under sustained pressure, as airlines continue to maximize fleet utilization while facing ongoing constraints in aircraft deliveries and supply chain performance,” stated Locatory in its April 2026 market overview.

AirPro News analysis

The data presented by Locatory.com confirms that the commercial aviation market is firmly entrenched in the mature phase of its lifecycle for key narrowbody platforms. In this phase, reliability-driven maintenance and component scarcity are the primary factors shaping procurement strategies.

As material availability remains a persistent challenge, market participants are being forced to adapt. We observe that operators and MROs are increasingly adopting modular repairs and module swaps as cost-effective strategies to keep engines operational and mitigate the impact of extended turnaround times for individual part repairs.

Frequently Asked Questions

What are the most searched aircraft parts in April 2026?
According to Locatory, sourcing behavior is heavily dominated by parts for mature narrowbody platforms, specifically the Boeing 737 Next Generation and Airbus A320ceo fleets, including components for CFM56 and V2500 engines.

Which aircraft parts are currently the hardest to find?
Critical rotating engine components, such as HPC spools and HPT disks, are among the hardest to find due to limited teardown material. Additionally, standard hardware like self-locking nuts is experiencing supply constraints.

Why is there a shortage of aircraft parts?
The shortage is driven by airlines maximizing the utilization of their existing fleets due to ongoing constraints in new aircraft deliveries, combined with broader supply chain performance issues and limited MRO capacity.

Sources: Locatory