F-35 Sustainment: Actions Needed to Ensure Updated Strategy Improves Persistent Readiness Challenges
What GAO Found Since 2021, F-35 sustainment costs have continued to increase, but the F-35 has not met performance goals and performance has trended down. Across the fleet from fiscal year 2021 through fiscal year 2025: The mission capable rate (percentage of time the aircraft can perform one of its tasked missions) declined from 67 percent to 44 percent. The full mission capable rate (percentage of time the aircraft can perform all of its missions) declined from 38 percent to 25 percent. In response, the F-35 Joint Program Office (JPO) updated its sustainment strategy, which it refers to as the Global Support Solution (GSS) Reset. The GSS Reset requires an estimated $13.7 billion more than.
Reported by Maria LopezF-35 Sustainment: Actions Needed to Ensure Updated Strategy Improves Persistent Readiness Challenges.
The item is dated Thu, 11 Jun 2026 06:59:31 -0400.
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What GAO Found Since 2021, F-35 sustainment costs have continued to increase, but the F-35 has not met performance goals and performance has trended down.
Across the fleet from fiscal year 2021 through fiscal year 2025: The mission capable rate (percentage of time the aircraft can perform one of its tasked missions) declined from 67 percent to 44 percent.
The full mission capable rate (percentage of time the aircraft can perform all of its missions) declined from 38 percent to 25 percent.
In response, the F-35 Joint Program Office (JPO) updated its sustainment strategy, which it refers to as the Global Support Solution (GSS) Reset.
The GSS Reset requires an estimated $13.7 billion more than…
Official Source
GAO reports and testimonies RSS. Accessed 2026-06-11T15:00:08.135Z.