Blue Origin narrowing in on root cause of catastrophic rocket accident

"The anomaly originated at the main oxygen valve on one of the BE-4 engines."

The short version

• The space company’s chief executive, Dave Limp, said investigative work is continuing into the anomaly that happened during a hot-fire test of the rocket during the evening of May 28, 2026.
• He confirmed, for the first time, widespread speculation that the problem started in one of the rocket’s seven BE-4 engines that power the vehicle’s first stage.
• “The anomaly originated at the main oxygen valve on one of the BE-4 engines, which was later confirmed by hardware recovery and inspections,” he said.

What happened

“We’re making small modifications to the valve that can be quickly retrofitted to existing engines,” he said. “We’re manufacturing the updated hardware, which will be ready by the end of this month.

Why it matters

In parallel, we’re working through the remaining fault tree analysis.” This is a positive update, and the transparency is appreciated.

Summary by Nerd News Network. Read the full article at Ars Technica via the links above and below.