| date | INES  | title | location |
|---|
| 31-03-1991 | INES 1 | WRONG POSITIONING OF THE FUEL ASSEMBLY WHILE PERFORMING FUEL ROD CLADDING INTEGRITY TEST | KOLA-2, Russian Federation |
| 11-05-1991 | INES 1 | UNPLANNED EXPOSURE OF PERSONNEL DURING REFUELLING | KOZLODUY-5, Bulgaria |
| 01-06-1991 | INES 1 | UNIT SHUTDOWN DUE TO PERSONNEL ERRORS AND DAMAGE TO RCP 6 KV BREAKER | KALININ-2, Russian Federation |
| 01-01-1990 | INES 1 | FUEL BUNDLE LATTICE SPACING FAILURES | LOVIISA-1, Finland |
| 28-05-1991 | INES 1 | FUEL ASSEMBLY TILTED OVER DURING CORE LOADING | RINGHALS-2, Sweden |
| 15-07-1991 | INES 1 | FIRE IN LOW LEVEL RADIOACTIVE WASTE STORAGE | KOZLODUY-1, Bulgaria |
| 18-07-1991 | INES 1 | EARTHQUAKE IN CENTRAL EUROPE | KOZLODUY-1, Bulgaria |
| 16-10-1990 | INES 1 | DROPPING OF SPENT FUEL BUNDLES OF CHANNEL P-09 IN SOUTH SIDEFUEL TRANSFER CAVITY | RAJASTHAN-1, India |
| 23-10-1990 | INES 1 | MG-TRIPPING ON UNDER/OVER FREQUENCY PROTECTION | KALPAKKAM-1, India |
| 07-01-1991 | INES 1 | SHUT DOWN OF MAPS UNITS 1 AND 2 FOLLOWING INABILITY TO MEET MINIMUM STAFF REQUIREMENT | KALPAKKAM-1, India |
| 07-03-1991 | INES 1 | HEAVY WATER SPILL FROM MODERATOR SYSTEM | KALPAKKAM-1, India |
| 07-04-1991 | INES 1 | MISGRAPPLING OF FUEL BUNDLE MB-140 IN THE CORE OF UNIT NO. 2 | TARAPUR-2, India |
| 03-05-1991 | INES 1 | FAILURE OF FUEL OIL LINE IN RUNNING DG-2 | KALPAKKAM-2, India |
| 18-07-1991 | INES 1 | REACTOR SCRAM AND COOLDOWN BECAUSE OF LEAKAGE IN A PRIMARY CIRCUIT MEASURING SYSTEM | PAKS-1, Hungary |
| 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 |
