Latest Events

Indonesia, 11 Jan 2024, INES: 1

Missing dangerous source during transport had been found

On 11 January 2024 around 18.00 hours local time, BAPETEN received notification of missing dangerous source during transportation of a gamma camera containing of Ir-192 (the activity of the source when the incident occurred was 1917,8 GBq/51,8 Ci) in Sub District Jambangan, Surabaya, East Java....
Reported by Nuclear Energy Regulatory Agency (BAPETEN) of Indonesia on 28 May 2024 Last update on 28 May 2024

United Kingdom, 15 Nov 2023, INES: 2

Partial loss of post-trip cooling

The planned reactor trip triggered switching of the reactor’s eight Gas Circulators' (GC) power supply from “nominal - 11kV” to “variable speed – 3.3kV”. The 3.3kV power supply is provided by four Variable Frequency Convertors (VFC) and four Variable Speed Drives (VSD). In this case two VFC failed...
Reported by Office for Nuclear Regulation (ONR) of United Kingdom on 29 Apr 2024 Last update on 29 Apr 2024

United States of America, 22 Feb 2024, INES: 2

Worker Exceeded Annual Extremity Dose Limit

An employee received a dose of 0.95 Sv (95 rem) to the extremities (hands) due to improper handling and response to an incident involving a damaged 85.1 MBq (2.3 mCi) Co-60 source. This dose was estimated by the Illinois Emergency Management Agency and confirmed by the licensee. The source was...
Reported by Nuclear Regulatory Commission (NRC) of United States of America on 17 Apr 2024 Last update on 17 Apr 2024

United Kingdom, 31 Dec 2019, INES: 2

Radon Exposure at Boarding School

The incident occurred at a private boarding school where pupils, employees and their children had been exposed to high levels of radon gas in the atmosphere. The two employees and their two children were exposed to the high radon gas levels as a result of working and living at the school. The...
Reported by Office for Nuclear Regulation (ONR) of United Kingdom on 26 Jan 2024 Last update on 26 Jan 2024

Mexico, 04 Jan 2024, INES: 0

Declaration of Unusual Event (NUP-4.1)

On January 4, 2024, the Unit 1 was operating at 100% power. At 09:00 (local time) the steam tunnel cooling unit “1-RRA-FC-009A” was started due to equipment rotation resulting in the loss of energy in the Motor Control Center (MCC) “1-R31-MCC-1BA-AA” with the failure of the electrical protection of...
Reported by Comision Nacional de Seguridad Nuclear y Salvaguardias of Mexico on 12 Jan 2024 Last update on 12 Jan 2024

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