Federal agents served a search warrant at a Garden Grove aerospace plant connected to a hazardous methyl methacrylate tank incident that forced evacuations; authorities are probing possible violations at the facility amid ongoing investigations and a related class-action lawsuit against GKN Aerospace.
The Garden Grove GKN Aerospace plant, which leaked methyl methacrylate and forced evacuations, has produced F-35 canopy components under Lockheed Martin subcontracts totaling over $13 million since 2017, with analyses suggesting these parts are likely destined for Israel. The company has expansion plans to double canopy production due to rising demand, while activists and local residents call for closing the facility amid concerns about safety and war-profiteering in the F-35 supply chain.
All remaining evacuation orders in six Orange County cities were lifted after officials determined there was no longer a danger of explosion or chemical release from a methyl methacrylate tank at GKN Aerospace, marking a six-day crisis that forced about 50,000 residents to evacuate. The risk was reduced after a crack lowered tank pressure and crews cooled the contents with more than 9 million gallons of water; a 300-foot exclusion zone remains and a Western Avenue road closure continues as officials monitor conditions and continue to face ongoing lawsuits tied to the incident.
A methyl methacrylate tank at GKN Aerospace in Garden Grove cracked, potentially relieving pressure and reducing explosion risk. About 50,000 residents were evacuated as crews cool the tank, monitor for leaks, and erect containment barriers. Air quality around the area remains within normal limits, no injuries have been reported, and a related class-action lawsuit has been filed by residents.
Crews say a possible pressure-relieving crack behind the methyl methacrylate leak at GKN Aerospace in Garden Grove could change their strategy to stop the incident, as roughly 50,000 residents remain evacuated. A state of emergency is in effect, investigations are underway, and air monitoring plus evacuation support continue.
An unprecedented risk is unfolding at a Garden Grove aerospace facility where a large tank of methyl methacrylate (MMA) could fail, potentially releasing toxic vapors and triggering a BLEVE. About 40,000 residents are under a 1–3 mile evacuation zone across parts of Garden Grove, Anaheim, Buena Park, Cypress, Stanton and Westminster, with Disneyland outside the area. One tank contains roughly 7,000 gallons and is most at risk; valves are broken and stabilized agents can’t be added, complicating efforts to depressurize or drain it. Crews have cooled the tank with sprinklers and are monitoring with drones, while authorities search for alternative mitigation methods. MMA exposure can irritate the lungs and, at high levels, cause severe respiratory distress; long-term effects are a concern, though the chemical is not deemed likely to be carcinogenic. Some residents are refusing to evacuate, and officials stress this could last days as they work to prevent a toxic vapor plume from reaching other areas.
A 34,000-gallon tank of methyl methacrylate at a Garden Grove aerospace plastics facility is in crisis, prompting evacuations across six Orange County cities (Garden Grove, Cypress, Stanton, Anaheim, Buena Park and Westminster). Crews are cooling and monitoring the tank, with a temperature threshold that would trigger a full evacuation. The tank could either leak thousands of gallons or explode; air-quality monitors, drones, and road closures are in place as officials assess when it’s safe to lift the orders.