date  | INES | title | location |
|---|
| 26-07-1991 | INES 0 | DEUTERIUM INCREASE IN MODERATOR COVER GAS SYSTEM | KALPAKKAM-1, India |
| 01-08-1991 | INES 2 | DEFECT IN THE COATING OF THE SUMPS (1300 PLANTS) | PALUEL-2, France |
| 06-08-1991 | INES 1 | NEW RADIOACTIVE "HOT SPOTS" DISCOVERED AT KOZLODUY NPP | KOZLODUY-1, Bulgaria |
| 10-08-1991 | INES 2 | PRIMARY WATER SPILLAGE WHILE REPAIR OF THE GATE VALVE AT RCP SUCTION DURING SCHEDULED MAINTENANCE | CHERNOBYL-2, Ukraine |
| 14-08-1991 | INES 1 | DEVIATION FROM OPERATING INSTRUCTIONS | OSKARSHAMN-2, Sweden |
| 14-08-1991 | INES 0 | INTERNAL LEAKAGE OF PRESSURIZER SAFETY VALVES | STADE, Germany |
| 08-09-1991 | INES 1 | INADVERTENT STEAM RELEASE INTO THE REACTOR HALL DUE TO STOP OF PUMP IN RESIDUAL HEAT REMOVAL SYSTEM | BARSEBECK-2, Sweden |
| 10-09-1991 | INES 1 | REVEAL OF INADVERTENTLY CLOSED MANUAL SERVICE VALVES AT VERIFICATION TESTS OF THE SCRAM SYSTEM BEFORE PREPARATIONS TO RESTART | FORSMARK-2, Sweden |
| 11-09-1991 | INES 0 | FAILURE OF TWO PRESSURIZER SPRAY LINES | BEZNAU-1, Switzerland |
| 13-09-1991 | INES 2 | METALLURGICAL FLAW IN SECONDARY STEAM PIPE | FESSENHEIM-1, France |
| 14-09-1991 | INES 1 | SMALL STEAM LEAK FROM THE MAIN FALNGE OF THE PRIMARY COOLANT PUMP NO. 6 | KOZLODUY-4, Bulgaria |
| 16-09-1991 | INES 2 | BORON MEASURING DEVICE CALIBRATION ERROR AT THE CHEMICAL LABORATORY | CHINON-B1, France |
| 18-09-1991 | INES 1 | ONE FUEL ASSEMBLY TILTED DURING REFUELLING | RINGHALS-4, Sweden |
| 19-09-1991 | INES 1 | FUEL BUNDLE DAMAGE DURING TRANSFER TO SPENT FUEL BAY | GENTILLY-2, Canada |
| 20-09-1991 | INES 1 | INCREASE ACTIVITY OF WASTE WATER FROM THE A-1 AND V-1 NPPS | BOHUNICE-1, Slovakia |
| 23-09-1991 | INES 2 | DEFECTS IN BUGEY AND FESSENHEIM POWER PLANT REACTOR VESSEL HEADS | BUGEY-2, France |
| 02-10-1991 | INES 2 | CONTAMINATION OF THE SECONDARY WATER DUE TO ERRORS OF THE SPECIAL WATER TREATMENT FACILITY PERSONNEL | ZAPOROZHE-2, Ukraine |
| 11-10-1991 | INES 2 | UNIT SHUTDOWN DUE TO FIRE IN THE TURBINE BUILDING CAUSED BY ELECTRICAL EQUIPMENT FAILURE | CHERNOBYL-2, Ukraine |
| 25-10-1991 | INES 2 | BORATED WATER STORAGE TANK LEVEL REDUCTION TO 180 M3 | NOVOVORONEZH-4, Russian Federation |
| 01-11-1991 | INES 0 | PARTIAL DAMAGE TO POWER AND INSTRUMENTATION CABLES OF TURBINE BUILDING VALVES AND AUXILIARY COMPONENTS AS A RESULT OF IGNITION | CHERNOBYL-1, Ukraine |
| 04-11-1991 | INES 1 | LOSS OF CLASS III SUPPLY DUE TO FAULT IN CLASS III BUS SUPPLY BREAKER | KALPAKKAM-1, India |
| 05-11-1991 | INES 2 | SIGNIFICANT CONTAMINATION IN THE CHEMICAL PURIFICATION LABORATORY IN THE CADARACHE RESEARCH CENTER | CADARACHE, France |
| 06-12-1991 | INES 1 | DEVIATION FROM THE NORMAL ON-LOAD REFUELING REGIME DUE TO FUEL ASSEMBLY SEPARATION FROM THE CONNECTING BAR | SMOLENSK-3, Russian Federation |
| 07-12-1991 | INES 0 | DAMAGE TO RCP MAIN THRUST BEARING WHILE PREPARING PRIMARY FOR HYDROTEST | KOLA-3, Russian Federation |
| 12-12-1991 | INES 0 | REACTOR TRIP ON LOW PHT PRESSURE | KALPAKKAM-2, India |
| 13-12-1991 | INES 1 | CONTAMINATION OF SUBSOIL AT DHRUVA - CIRUS COMPLEX | DHRUVA, India |
| 19-12-1991 | INES 0 | REACTOR TRIP ON LOW PHT PRESSURE | KALPAKKAM-1, India |
| 30-12-1991 | INES 2 | UNIT SHUTDOWN AS A RESULT OF SPURIOUS OPERATION OF THE FIRE EXTINGUISHING SYSTEM AND DUE TO FLOODING OF ESFAS PANELS | ZAPOROZHE-2, Ukraine |
| 05-01-1992 | INES 0 | NO IMPACT TO SAFETY AFTER IGNITION OF THERMAL INSULATION OF A PIPE IN THE PRIMARY COOLANT SYSTEM | KOZLODUY-5, Bulgaria |
| 06-01-1992 | INES 0 | PLANNED UNIT SHUTDOWN DUE TO BLOCKADE OF ROAD | RAJASTHAN-2, India |
