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UK Probe Reveals Causes of Fatal Royal Navy Merlin Ditching

September 11, 2026

2 min read

Key Takeaways

A split diaphragm in an engine fuel component caused the ditching.
Crew mistook a runaway engine for two engine failures.
Two working engines were shut down before the ditching.
The incident resulted in one fatality and two minor injuries.

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Strategic Implications

This incident may indicate a need for improved crew training on power-related malfunctions and more effective communication between crew members. The findings suggest that the Merlin cockpit warning system could be reviewed to prevent similar mistakes in the future, which could have significant implications for the safety of military aviation operations.

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What Happened

Engine Failure And Crew Mistakes Led To Tragic Accident

A UK Defense Safety Authority report has revealed that a split diaphragm in an engine fuel component, combined with a misdiagnosed emergency and the shutdown of two working engines, caused the fatal ditching of a Royal Navy Merlin in September 2024. The incident occurred during night deck landing training with HMS Queen Elizabeth, resulting in the death of Lieutenant Rhodri Leyshon and minor injuries to two other crew members. The report highlights a series of factors contributing to the accident, including crew mistakes and a flawed engine component. The incident was first reported by AeroTime.

Source | Originally Published: September 11, 2026

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