▸ Legenda & explanation
date INES title location
18-09-1991INES 1ONE FUEL ASSEMBLY TILTED DURING REFUELLINGRINGHALS-4, Sweden
16-09-1991INES 2BORON MEASURING DEVICE CALIBRATION ERROR AT THE CHEMICAL LABORATORYCHINON-B1, France
14-09-1991INES 1SMALL STEAM LEAK FROM THE MAIN FALNGE OF THE PRIMARY COOLANT PUMP NO. 6KOZLODUY-4, Bulgaria
13-09-1991INES 2METALLURGICAL FLAW IN SECONDARY STEAM PIPEFESSENHEIM-1, France
11-09-1991INES 0FAILURE OF TWO PRESSURIZER SPRAY LINESBEZNAU-1, Switzerland
10-09-1991INES 1REVEAL OF INADVERTENTLY CLOSED MANUAL SERVICE VALVES AT VERIFICATION TESTS OF THE SCRAM SYSTEM BEFORE PREPARATIONS TO RESTARTFORSMARK-2, Sweden
08-09-1991INES 1INADVERTENT STEAM RELEASE INTO THE REACTOR HALL DUE TO STOP OF PUMP IN RESIDUAL HEAT REMOVAL SYSTEMBARSEBECK-2, Sweden
14-08-1991INES 1DEVIATION FROM OPERATING INSTRUCTIONSOSKARSHAMN-2, Sweden
14-08-1991INES 0INTERNAL LEAKAGE OF PRESSURIZER SAFETY VALVESSTADE, Germany
10-08-1991INES 2PRIMARY WATER SPILLAGE WHILE REPAIR OF THE GATE VALVE AT RCP SUCTION DURING SCHEDULED MAINTENANCECHERNOBYL-2, Ukraine
06-08-1991INES 1NEW RADIOACTIVE "HOT SPOTS" DISCOVERED AT KOZLODUY NPPKOZLODUY-1, Bulgaria
01-08-1991INES 2DEFECT IN THE COATING OF THE SUMPS (1300 PLANTS)PALUEL-2, France
26-07-1991INES 0DEUTERIUM INCREASE IN MODERATOR COVER GAS SYSTEMKALPAKKAM-1, India
22-07-1991INES 1CONTAMINATION OF SOIL ON SITEKOZLODUY-1, Bulgaria
22-07-1991INES 3BREACH OF UNIT LIMITING CONDITIONS FOR OPERATION WHILE PREPARING FOR RESTART AFTER MAINTENANCE DUE TO ECCS AND MSV UNAVAILABILITYSMOLENSK-2, Russian Federation
18-07-1991INES 1EARTHQUAKE IN CENTRAL EUROPEKOZLODUY-1, Bulgaria
18-07-1991INES 1REACTOR SCRAM AND COOLDOWN BECAUSE OF LEAKAGE IN A PRIMARY CIRCUIT MEASURING SYSTEMPAKS-1, Hungary
16-07-1991INES 0UNIT NO. 1 REACTOR SCRAM ON PRM HIGH FLUXTARAPUR-1, India
15-07-1991INES 1FIRE IN LOW LEVEL RADIOACTIVE WASTE STORAGEKOZLODUY-1, Bulgaria
10-07-1991INES 2INADVERTENT DILUTION OF THE PRIMARY FLUID DURING A COLD SHUTDOWNBELLEVILLE-2, France
10-07-1991INES 3RADIOACTIVE WATER SPILLAGE ON THE PLANT TERRITORY WHILE TRANSPORTING CASK WITH FUEL FRAGMENTS TO THE DRY RADWASTE REPOSITORYBILIBINO GEN, Russian Federation
10-07-1991INES 0UNIT NO. 1 REACTOR SCRAM ON PRM HIGH FLUXTARAPUR-1, India
09-07-1991INES 1HIGH ACTIVITY IN TB PITRAJASTHAN-2, India
05-07-1991[N/A]FIRE IN GAS STORAGEANGRA-1, Brazil
01-07-1991INES 2NEW FUEL ASSEMBLY DROPPING WHILE REFUELINGCHERNOBYL-2, Ukraine
22-06-1991INES 2DEFECTIVE WELDS IN LOW PRESSURE SAFETY INJECTION SYSTEMBELLEVILLE-2, France
15-06-1991INES 2TEMPERATURE TRANSIENT DURING START-UPBRADWELL UNIT A, United Kingdom
12-06-1991INES 2PARTIAL INOPERABILITY OF THE REACTOR PROTECTION SYSTEMCATTENOM-4, France
01-06-1991INES 1UNIT SHUTDOWN DUE TO PERSONNEL ERRORS AND DAMAGE TO RCP 6 KV BREAKERKALININ-2, Russian Federation
31-05-1991INES 2INCORRECT CALIBRATION OF SHUTDOWN SYSTEM AND TWO REGIONAL OVERPOWER DETECTORSPOINT LEPREAU, Canada