List of last seen helicopters in Gwynedd AirbusAHH145D2 / EC145T2 20133 SYS666 / ZM502 SikorskyS-92A 92-0251 G-MCGKSikorskyS-92A 92-0257 G-MCGYAirbusAHH145D2 / EC145T2 20310 ZM497AirbusAHH145D2 / EC145T2 20313 ZM499 List of helicopters operators in Gwynedd Caernarfon sector Caernarfon Defence Evaluation and Research Agency Llanbedr Defence Research Agency Llanbedr Royal Aerospace Establishment Llanbedr Royal Aircraft Establishment Llanbedr Testing & Evaluation Establishment Llanbedr Wales Air Ambulance Caernarfon @ (optional) Send