{"id":158335,"date":"2026-09-22T11:31:00","date_gmt":"2026-09-22T06:01:00","guid":{"rendered":"https:\/\/aviationa2z.com\/?p=158335"},"modified":"2026-09-22T04:12:57","modified_gmt":"2026-09-21T22:42:57","slug":"f-35-parts-take-unexpected-route-to-hong-kong-raising-fears-over-stealth-technology","status":"publish","type":"post","link":"https:\/\/aviationa2z.com\/index.php\/2026\/09\/22\/f-35-parts-take-unexpected-route-to-hong-kong-raising-fears-over-stealth-technology\/","title":{"rendered":"F-35 Parts Take Unexpected Route to Hong Kong, Raising Fears Over Stealth Technology"},"content":{"rendered":"\n

BETHESDA-<\/strong> Sensitive F-35 Lightning II<\/a> components were reportedly diverted to Hong Kong this summer, prompting an inquiry on Capitol Hill into the security of the fighter’s global supply chain.<\/p>\n\n\n\n

The shipment was bound for the United States for repairs after transiting the Pacific from Australia, and the Pentagon confirmed that some components disappeared.<\/p>\n\n\n\n

The reported shipment included an F-35 canopy containing stealth-related technology, but the available reporting does not establish that Chinese authorities obtained or examined the parts.<\/p>\n\n\n\n

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Photo : Netherlands Ministry of Defence | Wikimedia Commons | https:\/\/commons.wikimedia.org\/wiki\/File:Dutch_F-35_fighter_at_%C3%84mari_Air_Base_(20250401gtf1001).jpg<\/figcaption><\/figure>\n\n\n\n

Why Hong Kong Diversion Has Raised Security Concerns<\/h2>\n\n\n\n

Three people familiar with the matter told reporters that the F-35 parts were unexpectedly rerouted while moving from Australia to the United States. The individuals were granted anonymity because they were discussing private conversations.<\/p>\n\n\n\n

The parts were being transported by an intermediary on behalf of Lockheed Martin<\/a>, the manufacturer of the F-35.<\/p>\n\n\n\n

Instead of continuing toward the United States, the shipment ended up in Hong Kong. The reason for the diversion remains unclear, as does the identity of whoever currently possesses the equipment.<\/p>\n\n\n\n

The Pentagon has confirmed the disappearance of some components. The F-35 Joint Program Office said it was aware of a shipment issue involving unserviceable F-35 Lightning II components and said it was working with US authorities and industry partners to retrieve the equipment, investigate what happened and strengthen safeguards.<\/p>\n\n\n\n

The incident also prompted an ongoing series of briefings for congressional staff serving key national security committees<\/p>\n\n\n\n

According to the people familiar with the matter, Pentagon and State Department officials first briefed congressional staff in June, with additional briefings expected.<\/p>\n\n\n\n

The potential security concern centers on the type of equipment involved rather than simply on its commercial value. An actual aircraft component can potentially provide physical information that may be difficult to obtain from publicly available technical material or electronic data.<\/p>\n\n\n\n

\"Lockheed
Photo: Lockheed Martin<\/figcaption><\/figure>\n\n\n\n

F-35 Canopy Contains Important Stealth Features<\/h2>\n\n\n\n

Two people familiar with the shipment said it included one of the F-35’s canopies. The canopy covers the cockpit and contributes to the aircraft’s low-observable design.<\/p>\n\n\n\n

The canopy is an acrylic bubble coated with a thin layer of transparent radar-absorbent material. That coating helps reduce the aircraft’s radar signature and forms part of the F-35’s stealth protection.<\/p>\n\n\n\n

The coating can degrade with time, which creates a need for canopy repair or replacement. The source material states that more than 1,300 F-35 aircraft had been produced for the United States and its allies, creating an ongoing requirement for specialized maintenance support.<\/p>\n\n\n\n

The concern is that a physical canopy could potentially be studied by an adversary. J.J. Gertler, a former House Armed Services Committee staff member and Congressional Research Service military aviation analyst, said China has sought F-35 information through electronic espionage and other methods.<\/p>\n\n\n\n

He also noted that possessing an actual component could allow an adversary to verify or refine information already obtained about the technology.<\/p>\n\n\n\n

Those comments describe a potential intelligence value, not evidence that China has obtained the parts. The reported diversion to Hong Kong raises the possibility of unauthorized access, but the information provided does not establish that such access occurred.<\/p>\n\n\n\n

\"F-35B
Photo: F-35 Lightning II<\/figcaption><\/figure>\n\n\n\n

Hong Kong Creates Additional Security Concern<\/h2>\n\n\n\n

Hong Kong is a special administrative region of China and operates under national security laws adopted by Beijing and the Hong Kong government. China’s 2020 National Security Law established a broad national-security framework for the region, while Hong Kong’s Safeguarding National Security Ordinance took effect in 2024 and expanded the local framework.<\/p>\n\n\n\n

That legal and political context is relevant because the shipment contained equipment associated with a US-led defense program involving several allied countries. The reported diversion therefore raised concern about whether sensitive components could come under the influence or control of authorities or other actors connected to China.<\/p>\n\n\n\n

The original reporting also noted China’s history of efforts to obtain sensitive U.S. defense information, including information connected to the F-35.<\/p>\n\n\n\n

The possibility that a physical component could supplement information obtained through other intelligence methods is one reason the incident has attracted congressional attention.<\/p>\n\n\n\n

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Photo: Staff Sgt. Jensen Stidham | Wikimedia Commons\nhttps:\/\/commons.wikimedia.org\/wiki\/File:Australian_airman_on_the_wing_of_a_F-35_in_August_2018.jpg<\/figcaption><\/figure>\n\n\n\n

Pentagon and Lockheed Martin Respond<\/h2>\n\n\n\n

The F-35 Joint Program Office said it was coordinating with US authorities and industry partners to recover the components and investigate the shipment.<\/p>\n\n\n\n

The office also said safeguards would be put in place to reduce the risk of another incident. The statement did not explain why the shipment was diverted or identify the current location of every missing component.<\/p>\n\n\n\n

Lockheed Martin declined to discuss the status of specific shipments because of security considerations.<\/p>\n\n\n\n

The company said it follows all US regulations governing the shipment of aircraft components and emphasized that its teams apply safeguards to protect the F-35 program and its allied partners.<\/p>\n\n\n\n

The State Department declined to comment. The Chinese Embassy said it was not familiar with the incident.<\/p>\n\n\n\n

Politico<\/a> also highlighted the report, bringing additional attention to the questions surrounding the shipment.<\/p>\n\n\n\n

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Photo: Tech. Sgt. Timothy Boyer | Wikimedia Commons\nhttps:\/\/commons.wikimedia.org\/wiki\/File:Norwegian_F-35_Lightning_II.jpg<\/figcaption><\/figure>\n\n\n\n

F-35 Uses a Global Parts Network<\/h2>\n\n\n\n

The F-35 supply chain is unusually international. The program depends on maintenance facilities, warehouses, manufacturers and commercial transportation providers operating across several countries.<\/p>\n\n\n\n

Participating nations have access to a shared global pool of spare parts. The original reporting identified the United States, United Kingdom, Australia, Denmark, Norway and Poland among the countries involved in the program.<\/p>\n\n\n\n

The Defense Department owns spare parts in the shared pool until they are installed on an aircraft, while Lockheed Martin manages the program’s overall supply chain and uses commercial shipping providers to transport components.<\/p>\n\n\n\n

Australia operates F-35 maintenance depots, but the reporting said none of those facilities were yet capable of repairing canopies. That helps explain why a damaged or unserviceable canopy might need to be sent to another location for specialized work.<\/p>\n\n\n\n

The international structure allows parts to be positioned closer to operators, but it also creates more logistical handoffs. A shipment can move between government organizations, prime contractors, intermediaries, repair facilities and commercial carriers before reaching its final destination.<\/p>\n\n\n\n

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Photo: Lockheed Martin<\/figcaption><\/figure>\n\n\n\n

GAO Found Major Spare-Parts Problems<\/h2>\n\n\n\n

The Hong Kong incident comes after years of concerns about how F-35 spare parts are tracked.<\/p>\n\n\n\n

A May 2023 Government Accountability Office report found that the Defense Department did not independently account for spare parts held in the global spares pool at non-prime contractor facilities. The F-35 Joint Program Office did not enter those parts into an accountable property system capable of capturing real-time changes to property records, leaving prime contractors to maintain key inventory information.<\/p>\n\n\n\n

GAO found that one F-35 prime contractor had incurred losses of more than 1 million spare parts worth more than $85 million from May 2018 through October 2022. The F-35 Joint Program Office had reviewed less than 2 percent of those losses. GAO also found that roughly 940,000 spare parts worth more than $66 million had not been reported to the Joint Program Office for adjudication as of October 2022.<\/p>\n\n\n\n

The report identified specific examples, including 34 actuator doors worth more than $3.2 million and 14 batteries worth more than $2.1 million that had been lost without being reported to the Joint Program Office for review. GAO said the Pentagon lacked assurance that losses and disposition of spare parts were being accurately reported and tracked.<\/p>\n\n\n\n

The accountability problem is significant because the Department of Defense relies on contractors to maintain information about government-owned F-35 parts. Without an independent government record, the Pentagon has less visibility into how many parts exist, where they are located and what happens when they disappear.<\/p>\n\n\n\n

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Photo : \tJapan Air Self-Defense Force | Wikimedia Commons | https:\/\/commons.wikimedia.org\/wiki\/File:JASDF_equipment_F-35A_(5).jpg<\/figcaption><\/figure>\n\n\n\n

Continued Sustainment Problems<\/h2>\n\n\n\n

A June 2026 GAO report found that F-35 sustainment costs continued to rise while readiness performance declined. Across the fleet, the mission-capable rate fell from 67 percent in fiscal year 2021 to 44 percent in fiscal year 2025. The full-mission-capable rate fell from 38 percent to 25 percent over the same period.<\/p>\n\n\n\n

GAO said the F-35 program continues to face challenges involving spare-parts availability, maintenance practices and industrial capacity. The Joint Program Office has launched an updated sustainment strategy known as the Global Support Solution Reset, which includes an estimated $13.7 billion in additional funding requirements through fiscal year 2031.<\/p>\n\n\n\n

These readiness figures provide broader context for the significance of the supply chain. Spare parts are not only a financial and accountability issue; their availability directly affects whether aircraft can perform assigned missions.<\/p>\n\n\n\n

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A Lockheed Martin employee works on one of the CWA bulkheads for Switzerland\u2019s first F-35 | Photo: Lockheed Martin photographer Thinh D. Nguyen<\/figcaption><\/figure>\n\n\n\n

F-35 Program Faces Costs Above $2 Trillion<\/h2>\n\n\n\n

The supply-chain investigation also comes as the F-35 program faces extremely high long-term costs.<\/p>\n\n\n\n

GAO has reported that the Department of Defense estimates total F-35 acquisition and sustainment costs will exceed $2 trillion over the planned life of the program. A 2025 GAO report said the estimate covers 2,470 planned aircraft and a 77-year life cycle.<\/p>\n\n\n\n

The cost includes acquisition, operations, maintenance, repairs, parts and modernization. GAO has separately reported that projected sustainment costs rose from about $1.1 trillion in 2018 to about $1.58 trillion in 2023.<\/p>\n\n\n\n

The scale of the program makes supply-chain controls increasingly important. The F-35 depends on a large international network, while the Pentagon remains responsible for government-owned assets within that system.<\/p>\n\n\n\n

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Photo: USAF<\/figcaption><\/figure>\n\n\n\n

What the Investigation Must Determine<\/h2>\n\n\n\n

The central questions are how the shipment was rerouted, what controls failed, which components remain missing and whether any unauthorized party accessed them.<\/p>\n\n\n\n

Investigators also need to establish who was responsible for each stage of the shipment and whether existing procedures adequately track sensitive equipment as it moves between countries and organizations.<\/p>\n\n\n\n

The reported diversion does not establish that China obtained the F-35 components or that the stealth technology was compromised. It establishes that sensitive parts intended for repair in the United States were rerouted to Hong Kong and that some components subsequently disappeared, prompting an investigation and congressional briefings.<\/p>\n\n\n\n

The outcome could influence future procedures for transporting F-35 components, monitoring intermediaries, recording spare-parts movements and protecting equipment with potential intelligence value.<\/p>\n\n\n\n

Stay tuned with us. Further, follow us on social media for the latest updates.<\/p>\n\n\n\n

Join us on\u00a0Telegram Group\u00a0<\/a>for the Latest Aviation Updates. Subsequently, follow us on\u00a0Google News<\/a><\/p>\n\n\n\n

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Germany Takes Delivery of 1st F-35 Fighter Jet in the US<\/a><\/blockquote>