INES Levels
INES N/A
INES 0
INES 1
INES 2
INES 3
INES 4
INES 5
INES 6
INES 7

INES 1: Anomaly

Impact on Defence-in-Depth
  • Overexposure of a member of the public in excess of statutory ­annual limits.
  • Minor problems with safety components with significant defence-in-depth remaining.
  • Low activity lost or stolen radioactive source, device or transport package.
(Arrangements for reporting minor events to the public differ from country to country. Also, it is difficult to ensure precise consistency in rating events between INES Level-1 and Below scale/Level-0)
Legenda & explanation
date title location 
2000-01-31Loss of power of a 220 VAC safety bus barArgentinaEMBALSE
1996-02-06LOSS OF OFFSITE POWER AND SAFETY INJECTIONUnited States of AmericaCATAWBA-2
1994-11-24LOSS OF OFF-SITE AC POWERBulgariaKOZLODUY-1
1992-09-18LOSS OF INTERNAL POWER DUE TO THE TRIP OF THE MAIN TRANSFORMER (T-1)MexicoLAGUNA VERDE-1
2008-04-07Loss of Industrial Gamma Radiography Exposure Device containing Ir-192 radiography sourceJapanNon-Destructive Inspection Co., Ltd / Chiba
1994-11-24LOSS OF ELECTRICAL SUPPLY OF THE BANK PUMP STATION OF KOZLODUY NPPBulgariaKOZLODUY-1
1991-11-04LOSS OF CLASS III SUPPLY DUE TO FAULT IN CLASS III BUS SUPPLY BREAKERIndiaKALPAKKAM-1
2000-06-07Loss of an Iodine-131 package between France and Spain during air shipmentFranceCIS BIO INTERNATIONAL
2000-05-03Loss of an iodine-125 sourceFranceCIS BIO INTERNATIONAL
2003-04-12Loss of an industrial radiography device containing 138 GBq of iridium 192IndiaOther
2004-09-24Loss of an excepted package shipped to SlovakiaFranceTransport International
2004-07-17Loss of an excepted package between Saclay (France) and La Habana (Cuba)FranceTransport International
2004-02-23Loss of a type A package between Saclay (France) and Nuremberg (Germany)FranceTransport International
2006-07-05Loss of a type A packageFranceTransport International
2001-12-04Loss of a type "A" package during a road shipment between France and ItalyFranceCIS BIO INTERNATIONAL
2000-11-13Loss of a radioactive Type-A package containing 30,8 GBq of Thallium 201 between Paris-Roissy (France) and Budapest (Hungary) airportsFranceCIS BIO INTERNATIONAL
2000-09-29Loss of a radioactive package containing a small amount of depleted uraniumFranceSICN COMPANY
2000-11-28Loss of a radioactive package between Roissy (France) and Athens (Greece) airportsFranceCIS BIO INTERNATIONAL
2000-12-04Loss of a radioactive package between Orange (84-France) and Thrion-Gardals (28-France)FranceSAPHYMO
2000-03-02Loss of a Promethium source (18.5 GBq)FranceTANDEM CONSULTANTS
2016-08-25Loss of a device containing radioactive sourcesPolandBoguszow-Gorce, Poland
1992-09-03LOSS OF 250V DC CONTROL POWER SUPPLY TO 415 V BKRS CONNECTED WITH CLASS-III BUS L&LXIndiaRAJASTHAN-2
1999-09-10Loss of 185 MBq of I-131 in type A packagingSouth AfricaSOUTH AFRICAN AE CORP.
2019-06-26Loss and subsequent recovery of a radiography device containing sourceIndiaChakan, Pune
2019-01-16Loss and subsequent recovery of a radioactive sourceIndiaRajahmundry, Oil and Natural Gas Corporation Ltd.
2006-05-29Loss and dispersion of radioactive source (Eu-152, 2006)Viet NamITRRE/Hanoi
1992-12-23LEVEL DECREASE IN ECCS TANK 20TJ20B001,2HungaryPAKS-2
1994-08-31LEAKING ISOLATION VALVES IN THE EMERGENCY CORE COOLING SYSTEMSwedenBARSEBECK-2
1992-10-15LEAKAGE OF REACTOR CIRCUIT PIPE 76 MM DIAMETER FROM REACTOR CHANNEL 32-24 TO THE DRUM SEPARATORLithuaniaIGNALINA-2
2011-10-19Leakage of Heavy Water from Feeder PipePakistanKANUPP Unit-1 (K-1)