| date | INES  | title | location |
|---|
| 22-07-1991 | INES 1 | CONTAMINATION OF SOIL ON SITE | KOZLODUY-1, Bulgaria |
| 06-08-1991 | INES 1 | NEW RADIOACTIVE "HOT SPOTS" DISCOVERED AT KOZLODUY NPP | KOZLODUY-1, Bulgaria |
| 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 |
| 14-08-1991 | INES 1 | DEVIATION FROM OPERATING INSTRUCTIONS | OSKARSHAMN-2, Sweden |
| 14-09-1991 | INES 1 | SMALL STEAM LEAK FROM THE MAIN FALNGE OF THE PRIMARY COOLANT PUMP NO. 6 | KOZLODUY-4, Bulgaria |
| 20-09-1991 | INES 1 | INCREASE ACTIVITY OF WASTE WATER FROM THE A-1 AND V-1 NPPS | BOHUNICE-1, Slovakia |
| 19-09-1991 | INES 1 | FUEL BUNDLE DAMAGE DURING TRANSFER TO SPENT FUEL BAY | GENTILLY-2, Canada |
| 19-03-1991 | INES 1 | LEAKAGE IN THE GASEOUS WASTE PROCESSING SYSTEM (GWPS) | ANGRA-1, Brazil |
| 09-07-1991 | INES 1 | HIGH ACTIVITY IN TB PIT | RAJASTHAN-2, India |
| 18-09-1991 | INES 1 | ONE FUEL ASSEMBLY TILTED DURING REFUELLING | RINGHALS-4, 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 |
| 09-05-1992 | INES 1 | REACTOR SHUTDOWN BY TECHNICAL SPECIFICATIONS APPLICATION (UNUSUAL EVENT) | LAGUNA VERDE-1, Mexico |
| 30-03-1992 | INES 1 | DROPPING OF A SPENT FUEL BUNDLE IN INSPECTION BAY | KALPAKKAM-2, India |
| 24-01-1992 | INES 1 | HEAVY WATER LEAK FROM RUPTURED HOSE | RAJASTHAN-2, India |
| 04-11-1991 | INES 1 | LOSS OF CLASS III SUPPLY DUE TO FAULT IN CLASS III BUS SUPPLY BREAKER | KALPAKKAM-1, India |
| 10-06-1992 | INES 1 | CONTAMINATED PARTICLES DISCOVERED ON-SITE | KOZLODUY-1, Bulgaria |
| 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 |
| 15-05-1992 | INES 1 | DEUTERIUM EXCURSION IN MODERATOR COVER GAS | RAJASTHAN-2, India |
| 28-06-1992 | INES 1 | TRITIUM ACTIVITY IN PROCESS WATER RETURN | RAJASTHAN-2, India |
| 04-06-1992 | INES 1 | INOPERABILITY OF HERMETIC COMPARTMENT PRESSURE INDICATORS OF ESFAS | DUKOVANY-2, Czech Republic |
| 04-09-1990 | INES 1 | REACTOR START UP WITH DEGRADED REACTOR SHUT DOWN SYSTEMS | LEIBSTADT, Switzerland |
| 22-09-1992 | INES 1 | SMALL FIRES CAUSED BY SHORT-CIRCUIT | KOZLODUY-5, Bulgaria |
| 18-08-1992 | INES 1 | LOW ACTIVITY BORATED WATER LEAK FROM MAKE-UP SYSTEM | DUKOVANY-1, Czech Republic |
| 16-04-1992 | INES 1 | DEGRADED WATER CHEMISTRY IN THE PRIMARY CIRCUIT DUE TO CEMENT MORTAR INGRESS INTO THE BORATED WATER STORAGE TANK | KOLA-2, Russian Federation |
| 06-07-1992 | INES 1 | FAILURE OF TWO DIESEL GENERATORS WHILE ROUTINE TESTING DURING UNIT MAINTENANCE | BALAKOVO-2, Russian Federation |
| 18-01-1992 | INES 1 | AN IMPORTANT LOSS OF COMMUNICATIONS IN MAIN CONTROL ROOM | LAGUNA VERDE-1, Mexico |
| 13-05-1992 | INES 1 | RECIRCULATION TRANSIENT WITH A SUDDEN INCREASE IN POWER OVER 100% | LAGUNA VERDE-1, Mexico |
| 28-05-1992 | INES 1 | A NON USUAL EVENT DUE TO THE LIBERATION OF GASES INSIDE THE PLANT | LAGUNA VERDE-1, Mexico |
| 18-09-1992 | INES 1 | LOSS OF INTERNAL POWER DUE TO THE TRIP OF THE MAIN TRANSFORMER (T-1) | LAGUNA VERDE-1, Mexico |
| 13-12-1991 | INES 1 | CONTAMINATION OF SUBSOIL AT DHRUVA - CIRUS COMPLEX | DHRUVA, India |
