Why Firefly's Alpha rocket suffered a 'mishap' during launch of Lockheed tech demo satellite

On April 29, a Firefly Alpha rocket suffered a critical malfunction during launch, preventing a Lockheed Martin technology demonstration satellite from reaching orbit.
PUBLISHED MAY 23, 2025
Firefly Aerospace's Alpha rocket FLTA006 in space after launch on April 29. (Cover Image Source: YouTube | Firefly Aerospace)
Firefly Aerospace's Alpha rocket FLTA006 in space after launch on April 29. (Cover Image Source: YouTube | Firefly Aerospace)

A Firefly Alpha rocket experienced a critical malfunction during launch on April 29, preventing a Lockheed Martin technology demonstration satellite from reaching its intended orbit. The rocket, carrying the FLTA0006 mission, lifted off from Vandenberg Space Force Base at 9:37 a.m. Eastern, following a scrubbed attempt the previous day due to ground support equipment issues, according to SpaceNews.



 

The launch initially appeared successful, but about less than 2 minutes and 35 seconds after liftoff, during the critical stage separation sequence, a problem occurred. Video footage showed a cloud forming between the two stages and what appeared to be debris falling away. A camera on the upper stage further revealed significant damage, possibly even a missing nozzle, on its single Lightning engine. Firefly later confirmed that the upper stage and its payload failed to achieve orbit because of a "mishap between stage separation and second stage ignition," which severely reduced the engine's thrust, per the publication.

Although the upper stage reached a peak altitude of 320 kilometers, it didn't achieve the necessary orbital velocity. Consequently, both the stage and its payload reentered the Earth's atmosphere over the South Pacific near Antarctica. Additionally, the company stated, “The team is working closely with our customers and the FAA to conduct an investigation and determine the root cause of the anomaly.”

Gale force winds creating rough seas on a cold sunny day in the southern Atlantic ocean, with a view of the South Shetland Islands coastline in Antarctica (Representative Image Source: Getty | Cheryl Ramalho)
Gale force winds creating rough seas on a cold sunny day in the southern Atlantic ocean, with a view of the South Shetland Islands coastline in Antarctica (Representative Image Source: Getty | Cheryl Ramalho)

The payload, a Lockheed Martin LM 400 satellite, was intended for a crucial technology demonstration. Lockheed Martin had planned to put the mid-sized satellite through extensive "day in life" operational tests and demonstrations of its SmartSat software, which allows for spacecraft system reconfiguration. To this, Bob Behnken, vice president of exploration, products, and technology strategy at Lockheed Martin, said during an April 7 media event, "We’re really focused on trying to get the full lifetime experience of the spacecraft on a relatively accelerated timeline."

In an aerial view, the trail of the Firefly Alpha rocket floats behind the downtown Los Angeles skyline after it launched from Vandenberg Space Force Base (Image Source: Getty | David McNew)
In an aerial view, the trail of the Firefly Alpha rocket floats behind the downtown Los Angeles skyline after it launched from Vandenberg Space Force Base (Image Source: Getty | David McNew)

The Alpha rocket carried Lockheed Martin’s LM 400 Technology Demonstration (Tech Demo) satellite bus. This launch represented the first of a potential 25 missions under a partnership Lockheed Martin established with Firefly Aerospace in June 2024. At the time of the announcement, Bill Weber, then CEO of Firefly Aerospace, expressed, “Firefly is honored to continue this partnership with Lockheed Martin and appreciates their confidence in our rapid launch services to support their critical missions for years to come.” He further added, “The Firefly team has scaled up Alpha production and testing and significantly streamlined our launch operations to fly Alpha more frequently and responsively. This allows us to continue delivering the one metric ton rocket the industry is demanding,” reported Spaceflight Now

Following the unsuccessful launch, Chip Eschenfelder, the business communications lead for Lockheed Martin Space’s National Security Space office, issued a statement, confirming that Lockheed Martin is actively collaborating with Firefly on the ongoing investigation into the anomaly. Eschenfelder stated, “During launch, the Firefly rocket experienced an anomaly and our LM 400 Technology Demonstration satellite was lost. We are coordinating with the Firefly team to determine the root cause,” He further acknowledged the inherent risks in such endeavors, adding, “Navigating risk and going fast are part of these self-funded demonstrations, and the knowledge we’ve gained already from the LM 400 production and processing will also benefit future customer missions.” 

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