| date | INES | title  | location |
|---|
| 19-06-1992 | INES 0 | UNIT NO. 1 SCRAM ON PRM CH. 6 & IRM CH. 9 KICKING UP DURING FUNCTIONAL CHECKS | TARAPUR-1, India |
| 10-07-1991 | INES 0 | UNIT NO. 1 REACTOR SCRAM ON PRM HIGH FLUX | TARAPUR-1, India |
| 16-07-1991 | INES 0 | UNIT NO. 1 REACTOR SCRAM ON PRM HIGH FLUX | TARAPUR-1, India |
| 03-12-1995 | INES 0 | UNIT COLD SHUT DOWN BECAUSE OF THE FLAW IN PIPELINE OF THE PRIMARY MAIN COOLANT PUMP | ZAPOROZHE-1, Ukraine |
| 15-06-1994 | INES 1 | UNINTENTIONAL SLOW INSERTION OF ALL CONTROL RODS | FORSMARK-3, Sweden |
| 10-07-1995 | INES 1 | UNINTENTIONAL RELEASE TO THE SEA OF A MINOR AMOUNT OF SLIGHTLYCONTAMINATED WATER | BARSEBECK-1, Sweden |
| 04-06-2008 | INES 0 | Unidentified leakage from the primary circuit in excess of TS limit | KRSKO, Slovenia |
| 27-08-2003 | INES 0 | Unexpected closure of the main steam line isolation valve caused reactor trip | KRSKO, Slovenia |
| 19-07-2001 | INES 1 | Underdimensioned rupture disc installed in the FILTRA-system | BARSEBECK-2, Sweden |
| 02-08-2013 | INES 2 | Uncontrolled release of radioactive effluents into the public sewerage system | Bordeaux university hospital, France |
| 13-11-1993 | INES 2 | UNCONTROLLED POWER TRANSIENT IN A TEST REACTOR WITH DEGRADATION OF THE TESTED IRRADIATED FUEL NEEDLE | BR2, Belgium |
| 03-05-1993 | INES 1 | UNCONTROLLED INCREASE OF REACTOR POWER | PAKS-4, Hungary |
| 11-03-1997 | INES 2 | Uncontrolled entry into room under reactor vessel during refuelling outage | KOEBERG-2, South Africa |
| 05-10-2006 | INES 2 | Unavailabilty of containment cooling fans | DOEL-1, Belgium |
| 22-01-1992 | INES 2 | UNAVAILABILITY OF THE IODINE FILTERING OF REACTOR CONTROL ROOM VENTILATION SYSTEM | DAMPIERRE-1, France |
| 24-05-1991 | INES 2 | UNAVAILABILITY OF REACTOR LEVEL MEASUREMENT | BELLEVILLE-2, France |
| 10-04-1991 | INES 3 | UNAVAILABILITY OF LOW POWER EMERGENCY PROTECTION (LPEP) DUE TO LOSS OF IONIZATION CHAMBER POWER SUPPLY | CHERNOBYL-1, Ukraine |
| 06-06-1998 | INES 2 | Unavailability of 1 out of 4 main steam safety and relief valve station | UNTERWESER, Germany |
| 12-09-2012 | INES 0 | Unauthorized movement | Colombo Fort, Sri Lanka |
| 07-02-1993 | [N/A] | UNAUTHORIZED INTRUDER INTO PLANT PROTECTED AREA WHILE OPERATING AT 100 PERCENT POWER | THREE MILE ISLAND-1, United States of America |
| 30-06-2001 | INES 1 | Unauthorized dismantling of a furnace containing Co-60 radioactive sources | S.C. Forever/ Calan, Romania |
| 22-11-2013 | INES 1 | Two radioactive sources containing Co-60 lost or stolen | Bełchatów Power Station (coal-fired power plant), Poland |
| 01-07-1997 | INES 1 | Two out of four diesel generators unavailable due to loose connection to the voltage regulator | RINGHALS-2, Sweden |
| 21-11-1995 | INES 3 | Two occupational workers were injured by exposure of electron accelerator | TIANJIN, China |
| 25-07-2006 | INES 2 | Two emergency dieselgenerators did not start when the unit was disconnected from the ordinary off site grid. | FORSMARK-1, Sweden |
| 24-07-1992 | INES 0 | TURBINE/REACTOR TRIP ON SG 2 HIGH LEVEL | KRSKO, Slovenia |
| 24-07-1992 | INES 0 | TURBINE/REACTOR TRIP ON SG 1 HIGH LEVEL | KRSKO, Slovenia |
| 02-06-1995 | INES 1 | TURBINE/REACTOR TRIP CAUSED BY AN ERROR IN THE EH CONTROL SYSTEM OF THE TURBINE GENERATOR | KRSKO, Slovenia |
| 30-03-1993 | INES 0 | TURBINE TRIP ON SG HIGH-HIGH WATER LEVEL FOLLOWED BY REACTOR TRIP | QINSHAN 1, China |
| 21-12-1993 | INES 1 | TURBINE TRIP DUE TO PRESSURE DROP IN STEAM GENERATOR MAIN COLLECTOR | BOHUNICE-2, Slovakia |
