It was stated that approximately 17 thousand spare parts for F-35 aircraft in the USA are not registered in the Pentagon system.

The Government Accountability Office (GAO) in the USA stated that the US Department of Defense (Pentagon) continues to have problems in tracking and keeping inventory records of spare parts for F-35 warplanes and that approximately 17 thousand parts are not registered in the system.

GAO published a report on the Pentagon's spare parts records for F-35 warplanes worth billions of dollars.

The report stated that there is a common spare parts inventory in the F-35 program, which is used by the US Air Force and Marine Corps, as well as international users.

The report emphasized that many deficiencies were detected in the inventory management of the program in the inspections carried out since 2019 and said, "The Ministry of Defense has made little progress in ensuring and maintaining accountability regarding F-35 parts." The expression was used.

The report underlined that the Pentagon's records were "outdated, inaccurate and incomplete."

While there are 26 million spare parts worth approximately 31 billion dollars in the inventory as of March 2026, the report stated that approximately 17 thousand parts, whose value could increase to 2.5 billion dollars, were not recorded in the Pentagon's system, and pointed out that the problems that emerged in previous inspections have not yet been resolved.

The report stated that, according to the report published by GAO in 2023, a main contractor company lost track of more than 1 million F-35 spare parts worth more than 85 million dollars in the 2018-2022 period, and that the status of these parts has not yet been determined.

The report stated that the value of F-35 parts was shown as $0.01 or less in approximately 6 percent of the records in the December 2025 data set, which may indicate data errors, and that the Pentagon's records were not reliable in terms of tracking and financial reporting.