● Covered by 1 source · 1 reportMedium impact1 neutral
Blue Origin identifies main oxygen valve as origin of New Glenn rocket anomaly
Key points
- Anomaly occurred during a hot-fire test on May 28, 2026.
- Problem originated at the main oxygen valve on a BE-4 engine.
- Modifications are being made to the valve for existing engines.
- Blue Origin plans to return New Glenn to flight by year-end.
Anomaly Origin Identified
Blue Origin's CEO, Dave Limp, stated that the catastrophic anomaly during a New Glenn hot-fire test in May originated at the main oxygen valve on one of the BE-4 engines. This confirmation follows widespread speculation and was verified through hardware recovery and inspections after the incident on May 28, 2026.
Mitigation Efforts Underway
The company has conducted extensive component-level and engine hot-fire tests to understand the failure mode. Small modifications are being made to the valve, which can be retrofitted to existing engines. The updated hardware is expected to be ready by the end of the current month.
Path to Flight Return
Blue Origin is working to return the New Glenn rocket to flight before the end of this year. While modifications are being implemented, the company is still working through the remaining fault tree analysis to identify the definitive root cause of the issue. Debris clearance and launch tower reconstruction at Launch Complex 36-A are also progressing rapidly.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
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Reporting from
Blue Origin confirmed that the catastrophic New Glenn rocket anomaly in May originated at the main oxygen valve on one of its BE-4 engines. The company is making small modifications to the valve and aims to return the rocket to flight by the end of the year, despite not yet identifying the root cause.