F-35 combat power depends on the defense enterprise’s ability to identify, locate, move, repair, secure, and return components across a multinational network. Government ownership is insufficient without an authoritative record of each part’s location, status, and custodian.
The reported diversion of F-35 components from an Australia-to-U.S. repair route into Hong Kong exposed this control failure. The shipment reportedly included a canopy. Sensitive hardware left its authorized corridor while the program was still addressing weaknesses in property accountability, contractor oversight, and supply support.
The canopy matters. The custody architecture matters more.
Sustainment Is a Control System
An operational F-35 is one node in a network connecting the Joint Program Office, Lockheed Martin, Pratt & Whitney, suppliers, depots, warehouses, freight providers, partner nations, and military services.
| Control layer | Operational question | F-35 mechanism | Failure mode |
|---|---|---|---|
| Legal title | Who owns the part? | The Department of Defense owns the shared global spares pool | Ownership alone cannot produce a replacement |
| Record authority | Who tracks location, quantity, and status? | Prime contractors maintain much of the primary information | Government and maintainers lose visibility |
| Physical custody | Who holds or transports the item? | Depots, warehouses, intermediaries, and commercial carriers | Components are delayed, damaged, lost, or diverted |
| Technical authority | Who can diagnose, repair, certify, and release it? | Contractors, approved suppliers, depots, and JPO processes | A physically available part remains unusable |
A failed component must be matched to the aircraft configuration, entered into the supply system, routed securely, repaired with authorized data and tooling, certified, returned to inventory, allocated, and installed. Every broken handoff extends aircraft downtime.
Inventory becomes readiness only when the system combines accurate status, decision rights, repair authority, and custody integrity.
Ownership Without Visibility
The Government Accountability Office found that the JPO had not entered global-pool spares held at more than 50 domestic and international non-prime facilities into an accountable property system capable of recording real-time changes. Prime contractors maintained the underlying information.
From May 2018 through the audit period, one prime contractor recorded losses exceeding 1 million parts valued above $85 million. JPO reviewed less than 2% of those losses. As of October 2022, more than 900,000 parts valued above $66 million had not been reported for review.
These figures document historical loss records, not a current missing-parts count. Their significance is that the asset owner could not independently establish location, quantity, loss, or disposition.
As of September 2026, four GAO recommendations remained open:
- Establish contractual accountability.
- Apply government-furnished-property rules.
- Enforce loss reporting.
- Define disposition procedures for excess, obsolete, and unserviceable parts.
A global pool reduces duplicated inventory but multiplies custody transfers. Without an authoritative common record, shared inventory creates practical opacity.
The Hong Kong Diversion
News reports stated that unserviceable F-35 components moving from Australia to the United States for repair were rerouted to Hong Kong. JPO acknowledged a shipment issue, began retrieval efforts, and opened an investigation.
| Question | Public evidence |
|---|---|
| Did the shipment leave its intended route? | Yes |
| Did it include a canopy? | Reported by informed sources |
| Why was it rerouted? | Unknown |
| Who possesses the components? | Not publicly established |
| Was the hardware examined? | No public evidence |
| Was the cause accidental, hostile, or internal? | Investigation incomplete |
Physical access to a canopy can expose materials, coatings, tolerances, wear, and electromagnetic characteristics. It cannot reveal the aircraft’s complete low-observable performance, but the hardware has intelligence value.
The motive does not alter the control failure. A carrier error shows that sensitive hardware can leave its authorized corridor. A deliberate diversion exploits the same weakness. Both implicate shipment authorization, real-time tracking, exception alerts, carrier controls, and recovery authority.
Visibility Converts Into Sortie Capacity
Security and readiness share one mechanism: the program cannot control what it cannot see.
Fleetwide mission-capable rates fell from 67% in fiscal 2021 to 44% in fiscal 2025. Full-mission-capable rates fell from 38% to 25%. The Global Support Solution Reset requires an estimated $13.7 billion beyond prior projections through fiscal 2031 and depends on private industry supplying more than $7 billion in additional parts and material despite capacity constraints.
The transmission mechanism is direct:
- A fault makes an aircraft partially or fully unavailable.
- Maintainers need the correct compatible component, instructions, equipment, and labor.
- The supply system must locate a usable part or route the failed item through repair.
- Inventory errors, transport exceptions, unreported losses, repair delays, and certification bottlenecks extend downtime.
- Accumulated downtime lowers mission-capable rates.
More than 10,000 components awaited repair in March 2023. Missing technical data and training constrained maintenance. By March 2026, transition plans covering supply, maintenance, information technology, support equipment, and training remained incomplete, with several targets moved to the end of 2028.
Contract design compounded the failure. A December 2025 Inspector General report found inconsistent enforcement of material-inspection and government-property-reporting requirements. The sustainment contract omitted aircraft-readiness metrics. DOD paid Lockheed Martin $1.7 billion without an economic adjustment while service readiness minima were unmet. Average fleetwide air-vehicle availability was 50% in fiscal 2024.
The government can own the assets, pay the contractor, and still lack combat availability. The missing bridge joins property records, physical custody, technical status, and readiness outcomes.
The Control Plane
Lockheed Martin’s role reflects its integration knowledge, configuration control, supplier coordination, and responsibility for continuous upgrades. Fragmenting those functions would create incompatible baselines and duplicated inventories.
The structural flaw is asymmetric observability. The contractor operates the network using data the government does not independently control, while the government bears the readiness, financial, and security consequences.
Three functions must remain under government control:
| Function | Minimum standard | Operational test |
|---|---|---|
| Authoritative property visibility | Government-controlled records for location, status, custodian, movement authorization, and loss history | Can JPO reconstruct custody without waiting for contractor records? |
| Exception control | Automatic alerts when routing, jurisdiction, seal status, or custody departs from plan | Does an anomalous shipment stop before unauthorized exposure? |
| Outcome-based oversight | Payments tied to readiness, repair-cycle time, fill rate, and verified inventory accuracy | Does compensation rise only when supply performance and availability improve? |
The government does not need to operate every warehouse or shipment. It must own the control plane for government property.
Tests of Reform
| Required result | Deadline or observation window |
|---|---|
| Government-controlled, real-time records cover the full global pool | 12–24 months |
| Loss and disposition backlogs are cleared under enforceable rules | 12–24 months |
| Shipment exceptions trigger stop, recovery, and notification before jurisdictional exposure | Next material exception |
| Mission-capable rates rise as repair-cycle time and supply delays fall | Through fiscal 2028 |
| Transition plans specify data rights, staffing, authority, and measurable handoffs | By end of 2028 |
Failure preserves the existing system: contractors control the information layer, government officials audit after the fact, and squadrons absorb the downtime.
Accountable Custody Is a Combat Capability
Every maintenance model eventually creates a physical demand: move the correct part, under known custody, to the correct maintainer, with the authority and data required to return an aircraft to service.
The rerouted shipment exposed an existing weakness. Sensitive hardware left its intended corridor while accountability recommendations remained open and readiness deteriorated.
The correction is structural. Government-owned spares require government-controlled visibility. Contractor compensation must track service readiness. Every international movement needs an enforceable exception path. Until those conditions hold, F-35 combat power remains dependent on a logistics system its owner cannot fully observe.