News Summary

• Pentagon's F-35 fighter fleet continues to face readiness challenges despite years of investment, modernization efforts, and sustained contractor support.
• US Government Accountability Office (GAO) report found only 25% of the aircraft were fully mission capable during fiscal 2025.
• Findings raise questions about a program expected to cost ∼$1.6 trillion in lifetime US sustainment expenses while serving as the backbone of American air power.
• US Air Force officials attributed part of the deterioration to software delays affecting newly delivered aircraft, alongside corrosion concerns and persistent shortages of replacement components.