The incident raises the possibility that top secret weapons technology may have been exposed to a foreign adversary — including China. F-35s fly in formation with their afterburners during a kick-off celebration for the "Great American State Fair" on the National Mall in Washington, on June 24, 2026. | Ken Cedeno/AFP via Sensitive F-35 fighter jet technology was unexpectedly diverted to Hong Kong this summer, sparking an inquiry on Capitol Hill and raising the possibility that China could have access to key components of the highly classified weapon system. A shipment of F-35 parts bound for the United States for repairs was rerouted as it transited the Pacific Ocean from Australia, according to three people familiar with the matter who were granted anonymity to discuss private conversations.
The Pentagon confirmed the disappearance of some components. The parts, which an intermediary was transporting on behalf of F-35 manufacturer Lockheed Martin, instead wound up in Hong Kong. It’s not clear why the equipment was rerouted or who has possession of it now.
The incident, which has not been previously reported, triggered an ongoing series of briefings for congressional staff on key national security committees. State Department and Pentagon officials first briefed staff in June, according to the people, and multiple additional briefings are expected in the coming weeks. The shipment included one of the jet’s canopies, which covers the cockpit and contains stealth technology that only the U.S. and its allies have access to, according to two of the people.
An adversary could study the parts and potentially reverse-engineer the prized technology if it had one of the canopies. The Pentagon’s F-35 Joint Program Office said in a statement it was “aware of a shipment issue of unserviceable F-35 Lightning II components.” The office is working with U.S. authorities and industry partners “to retrieve these components, investigate the incident, and place safeguards to avoid a future occurrence,” it added. The shipment’s unexpected diversion to Hong Kong, a special administrative region of China, would have brought it into Beijing’s sphere of influence.
China has in recent years tightened its grip on the city and enacted increasingly strict national security laws that allow Chinese authorities to influence Hong Kong’s political system and crack down on dissent. China has already engaged in widespread espionage on secret Pentagon programs, including the F-35. Gertler, a former House Armed Services Committee staff member and Congressional Research Service military aviation analyst.
And while there are Australian maintenance depots for the jet, none are yet capable of repairing canopies. F-35 manufacturer Lockheed Martin manages the program’s overall supply chain and uses commercial shipping providers to transport parts. Lockheed said in a statement it couldn’t discuss the status of shipments for security reasons but follows all U.S. regulations for shipping aircraft components.
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