Three Royal Navy personnel were killed in a Merlin helicopter crash in Devon on June 3, igniting renewed concerns over pilot workload, training adequacy, and aircraft reliability within the service's air operations. Lieutenant Commander Chris Gayson, Lieutenant Lily-Mae Fisher, and Petty Officer Owen Green died when their aging Merlin helicopter crashed in a field near Sourton Down. This marked the second fatal accident involving the same Naval Air Squadron in three years, following the death of Lieutenant Rhodri Leyshon in a 2024 training incident.
According to a whistleblower from the squadron, instructors and pilots have long voiced concerns about excessive workloads and the reliability of the Merlin fleet, which entered service in 2002. The source, speaking anonymously, described a work environment where students were rushed through training courses to meet demanding schedules, sometimes at the expense of safety. They reported that pilots frequently worked beyond their allotted hours and faced repeated mechanical and technical issues that caused daily cancellations of planned sorties.
“The families deserve to know the truth,” the source said, emphasizing that personnel felt overworked and fatigued, creating risks both to themselves and the public. “Mistakes are made and mistakes are fatal,” they added, referencing the frequency of accidents within the unit. The whistleblower also noted that despite these challenges, crews were expected to resume duties quickly after the crash and that safety concerns previously raised were not adequately addressed.
Initial findings from the investigation into the Devon crash reportedly rule out mechanical failure as a cause based on analysis of the helicopter’s black box data. The source indicated that Lt Cmdr Gayson, who was an experienced instructor with operational deployments including Norway, Jordan, and Afghanistan, had been flying additional sorties to ensure students met qualification timelines. The whistleblower described him as an outstanding pilot whose concerns about safety had been overlooked.
The families of the deceased are receiving updates on the investigation’s progress, and Navy commanders have initiated engineering and aircrew forums aimed at identifying and implementing improvements to operational processes. An internal communication to grieving relatives highlighted that some immediate changes were already underway to address concerns raised.
Lieutenant Fisher had been undertaking her final flying assessment at the time of the accident. Lt Cmdr Gayson served as the Operational Conversion Flight Commander on 846 Naval Air Squadron, based at Royal Naval Air Station Yeovilton in Somerset— the unit involved in both recent fatal incidents.
In response to the allegations of rushed training and unserviceable helicopters, senior officers have denied claims that students were inadequately prepared or that aircraft conditions were compromising safety. The Ministry of Defence confirmed that a formal Service Inquiry has been launched to investigate the incident but declined further comment, noting that it would be inappropriate to discuss details while the inquiry is ongoing.
The tragedy has underscored ongoing challenges faced by the Royal Navy in balancing operational demands with training standards and equipment maintenance amid an ageing helicopter fleet.