GTF Storage Crisis Deepens: 835 Aircraft Grounded as Pratt & Whitney Recalls Surge Post-Mid-Year

The operational crisis surrounding the Pratt & Whitney Geared Turbofan (GTF) engine family has reached a new peak. As of late Q4 2025, the number of stored jets powered by the PW1000G family has climbed significantly, highlighting a widening gap between maintenance capacity and the relentless pace of engine recalls.

According to the latest fleet data from Cirium, the global tally of stored GTF-powered aircraft hit 835 at the end of October 2025, a sharp increase from the 748 units recorded at mid-year. This surge of nearly 90 additional grounded aircraft in just one quarter underscores the persistent "powder metal" contamination issue that continues to paralyse narrow body fleets worldwide.

A Tale of Two Engines

The disparity between Pratt & Whitney and its primary competitor, CFM International, has never been more stark. While nearly one-third (33%) of the global GTF fleet is currently immobilised, CFM’s Leap engine family—the alternative power plant for the Airbus A320neo and the sole option for the Boeing 737 MAX—maintains a vastly healthier profile.

Impacted Airlines

The grounding has created a "market dislocation" where aircraft are being scrapped years before their economic prime. Recent reports indicate that several A320neo and A321neo aircraft, some as young as six years old, have been retired early. The reason? The market value of a functional GTF engine now rivals the value of the entire airframe, leading lessors to "part out" young jets to keep other fleets flying.

Mexico’s Volaris and VivaAerobus: Remain among the most severely impacted, with dozens of A320neo family jets parked.

Wizz Air: The European ULCC continues to navigate a logistical nightmare, with an average of 35 to 41 aircraft grounded at any given time throughout 2025.

AirBaltic: Forced to dampen its ambitious growth plans and lease in older aircraft to cover the shortfall in its all-A220 fleet.

Air Transat: Reported an average of 6 to 8 A321LRs out of service, a significant portion of its long-range narrow body fleet.

Maintenance Bottlenecks and "Advantage" Solutions

The primary hurdle remains the Turnaround Time (TAT) at Maintenance, Repair, and Overhaul (MRO) centres. What used to be a 60-day inspection has ballooned into a 300-day odyssey for many engines.

To combat this, RTX (Pratt & Whitney’s parent company) is pivoting toward two key solutions:

GTF Hot Section Plus (HS+): A retrofit package now being deployed that incorporates approximately 35 redesigned part numbers. This upgrade is intended to double the engine’s time on wing, effectively stopping the bleeding for current operators.

GTF Advantage: Slated for full entry into service in 2026, this redesigned core offers 1% better fuel burn and significantly enhanced durability, aiming to restore the GTF's reputation as the most efficient engine in its class.

The 2026 Turning Point

While the storage numbers climbed post-mid-year, there is a cautious sense of "peak grounding." Pratt & Whitney recently confirmed it has produced enough engines to support Airbus’s ambitious 2025 delivery target of 820 aircraft. However, for the airlines with 835 jets sitting on the tarmac, the financial recovery will only begin once the MRO backlog begins to shrink; a process not expected to normalise until late 2026.