Stichting Laka

INES 2: Incident

• Exposure of a member of the public in excess of 10 mSv.
• Exposure of a worker in excess of the statutory annual limits.

• Radiation levels in an operating area of more than 50 mSv/h.
• Significant contamination within the facility into an area not expected by design.

• Significant failures in safety ­provisions but with no actual ­consequences.
• Found highly radioactive sealed orphan source, device or transport package with safety provisions intact.
• Inadequate packaging of a highly radioactive sealed source.

date	title	location
1999-05-08	Melting of a radioactive source with scrap metals	Greece	SCRAPYARD
1999-04-11	Spillage of radioactive materials	United Kingdom	BNFL, Sellafield
1999-03-26	Leak from coolant channel K-05 at MAPS-2	India	KALPAKKAM-2
1999-03-23	Theft of a vehicle containing a GAM80 gamma radiography unit (with 80 Ci source)	France	Mesnil Amelot
1999-03-11	Dose to a worker exceeding a statutory annual dose limit	France	TRICASTIN-1
1999-03-04	Loss of 7 TBq of Mo-99 in B(U) packaging	South Africa	SOUTH AFRICAN AE CORP.
1998-12-27	Loss of off-site power supplies at Hunterston B Power Station	United Kingdom	HUNTERSTON-B1 UNIT A
1998-11-21	Fuel assembly drop during refuelling	Mexico	LAGUNA VERDE-1
1998-11-10	Workers exposure during weld tests	Ukraine	ZAPOROZHE-3
1998-10-02	Switch off of a protection device during periodic inspection	France	PHEBUS
1998-09-11	Overexposure of two workers	India	NARORA-2
1998-07-13	Failure of safety system train during routine testing	Armenia	ARMENIA-2
1998-06-11	Automatic shutdown of the reactor caused by spurious triggering of the containment spray system and jamming of a control cluster in the high position during this shutdown	France	BELLEVILLE-2
1998-06-06	Unavailability of 1 out of 4 main steam safety and relief valve station	Germany	UNTERWESER
1998-06-04	Reactor discharge due to deterioration of quality of water in the secondary circuit (power reduction)	Armenia	ARMENIA-2
1998-05-19	SG blow down pipe rupture at Kozloduy NPP unit 1 during refuelling outage	Bulgaria	KOZLODUY-1
1998-05-13	Large leak in the residual heat removal system (RHR)	France	CIVAUX-1
1998-05-08	Loss of 4 TBq of Mo-99 in B(U) Packaging	South Africa	SOUTH AFRICAN AE CORP.
1998-05-08	Loss of 4 TBq of Mo-99 in B(U) packaging	South Africa	SOUTH AFRICAN AE CORP.
1998-05-07	Loss of ventilation in Dounreay fuel cycle area	United Kingdom	DOUNREAY
1998-04-21	Modification to main steam and main feed isolation valves leading to degradation of reactor protection systems	United Kingdom	SIZEWELL-A UNIT B
1998-03-14	Radiation overexposure of personnel while performing refuellig activities	Russian Federation	BILIBINO UNIT D
1997-09-27	Closed valves in the containment spray pumps' suction lines during the non-nuclear phase of start-up after refueling	Sweden	RINGHALS-4
1997-08-22	Fresh fuel assembly damage during refuelling	Ukraine	SOUTH UKRAINE-2
1997-08-20	Sticking of one control rod during reactor protection actuation after the turbine control system's test	Hungary	PAKS-3
1997-07-14	Leakage of water in the primary cooling system of AERE Reasearch Centre	Bangladesh	TRIGA MARK II
1997-05-18	Actuation of secondary shutdown system (SSS) on slow insertion of more than one rod of primary shutdown system (PSS)	India	KAKRAPAR-1
1997-05-15	Discovery of a Cs-137 radiation source on a scrap yard	Germany	METAL FOUNDRY, HETTSTEDT
1997-05-02	Workers receive dose exceeding statutory annual dose limit	South Africa	KOEBERG-1
1997-03-11	Uncontrolled entry into room under reactor vessel during refuelling outage	South Africa	KOEBERG-2