F-35 Sustainment: DOD Faces Several Uncertainties and Has Not Met Key Objectives, Statement of Diana Maurer, Director, Defense Capabilities and Management, Testimony Before the Subcommittee on Readiness, Committee on Armed Services, House of Representatives [open pdf - 4MB]
From the Highlights: "The F-35 aircraft with its advanced capabilities, represents a growing portion of DOD's tactical aviation fleet. DOD plans to procure nearly 2,500 F35s with an estimated $1.3 trillion in life-cycle costs associated with operating and sustaining the aircraft. This statement provides (1) the status of the F-35 program's ability to meet key sustainment metrics, (2) DOD's current engine sustainment strategy, and (3) uncertainties facing F-35 sustainment. This statement is based on GAO's [Government Accountability Office's] body of work issued from 2014 through 2022, draft report on F35 engine sustainment that was provided to DOD this month for review and comment, and ongoing review of F-35 maintenance. GAO analyzed key metrics for fiscal years 2019-2022, reviewed F-35 strategy and program documents, and interviewed officials. As a part of ongoing work, from December 2021 through March 2022, GAO staff visited two depot maintenance facilities and three installations that are the home stations for F-35 squadrons. [...] In its draft report, GAO is recommending, among other things, that DOD assess and update the F-35 engine sustainment strategy, including its goals and actions to achieve its goals. GAO's prior reports since 2014 have made several recommendations to enhance F-35 sustainment, some of which remain unimplemented as discussed in the testimony."
Government Accountability Office: http://www.gao.gov/