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Exhibit 337

F-35 Sustainment: Costs Continue to Rise While Planned Use and Availability Have Decreased (GAO-24-106703)

Exhibit 337 · GAO report

F-35 Sustainment: Costs Continue to Rise While Planned Use and Availability Have Decreased (GAO-24-106703)

DOD estimates the F-35 program will cost over $2 trillion to buy, operate, and sustain over its lifetime.

DoD estimates over $2 trillion to buy, operate and sustain the F-35; sustainment estimate rose 44 percent from 2018 to 2023.

Source
U.S. Government Accountability Office
Date
15 April 2024
Quoted from
p. 2
Grade
Primary record
Document
https://www.gao.gov/products/gao-24-106703
Accessed
2026-11-09
Cited by
Findings citing this exhibit
Note
Further quotation: “The F-35 fleet’s overall availability has trended downward considerably over the past 5 years, and none of the variants are meeting availability goals” (Key Takeaways, PDF p. 2). Page 1: 'DOD operates and sustains about 630 F-35 aircraft and plans to procure about 2,500 total by the mid-2040s.' Key Takeaways also state that since 2014 GAO had made 43 recommendations and that 30 (about 70 percent) remained unimplemented. Report date 15 April 2024. Read from a Wayback capture of gao.gov/assets/gao-24-106703.pdf.

Cited by

Finding DEF-1.7
Primary record DoD estimates the F-35 will cost over $2 trillion to buy, operate and sustain, including about $1.58 trillion for sustainment, which rose 44 percent from 2018 to 2023. GAO reported in 2026 that the F-35 mission capable rate fell from 67 to 44 percent between fiscal years 2021 and 2025.