Last A-10 Engine Built at Davis-Monthan After 50 Years

Key Takeaways

• Last GE TF34 engine assembled at Davis-Monthan on May 21, 2026.
• 50‑year engine‑build program ends, ending local A‑10 maintenance.
• A‑10 fleet reduced; only 103 aircraft required through Sep 2026.
• Remaining A‑10s still deployed in Middle East for Operation Epic Fury.
• All shop personnel contributed to final engine, highlighting unit cohesion.

Pulse Analysis

The A‑10 Thunderbolt II, affectionately known as the "Warthog," has been a cornerstone of U.S. close‑air‑support since its introduction in the 1970s. Davis‑Monthan Air Force Base in Arizona became the hub for rebuilding its GE TF34 turbofan engines, a task that required meticulous inspection, repair, and testing over a 30‑day cycle. Over 50 years, the base’s propulsion specialists ensured that each engine could deliver the rugged performance needed for low‑altitude, high‑precision strikes that protect ground troops.

The completion of the final engine marks the end of a unique maintenance lineage at Davis‑Monthan. While the base will no longer rebuild TF34s, the expertise cultivated there is being redistributed to other Air Force depots and commercial aerospace firms, preserving critical skill sets. The transition also reflects a broader strategic realignment as the Air Force consolidates A‑10 sustainment at Hill Air Force Base, which itself closed its depot in early 2026. Personnel who spent their careers on these engines now face reassignment, retraining, or retirement, highlighting the human dimension of defense‑industry downsizing.

Despite the drawdown, the A‑10 remains operationally relevant. Congressional language in the FY‑2026 National Defense Authorization Act obliges the service to retain at least 103 aircraft through September 2026, and the jets continue to fly combat missions, including recent sorties in the Middle East under Operation Epic Fury. This dual reality—phasing out legacy maintenance while maintaining a combat‑ready fleet—illustrates the Air Force’s balancing act between cost‑effective modernization and preserving proven capabilities for near‑term contingencies.