date  | INES | title | location |
|---|
| 12-05-1991 | INES 3 | RELEASE OF ACTIVE LIQUID FROM STORAGE TANK | BOHUNICE-1, Slovakia |
| 11-05-1991 | INES 1 | UNPLANNED EXPOSURE OF PERSONNEL DURING REFUELLING | KOZLODUY-5, Bulgaria |
| 09-05-1991 | INES 2 | ISOLATION OF FUEL OIL TO ESSENTIAL GAS TURBINES | HINKLEY POINT-B UNIT A, United Kingdom |
| 04-05-1991 | INES 3 | PERSONNEL OVEREXPOSURE DURING PRECOMMISSIONING OPERATIONS INVOLVING HOT CELL | IGNALINA-2, Lithuania |
| 03-05-1991 | INES 1 | FAILURE OF FUEL OIL LINE IN RUNNING DG-2 | KALPAKKAM-2, India |
| 29-04-1991 | INES 2 | VIOLATION OF SAFETY REGULATIONS AT A WORKSHOP IN THE FUEL FABRICATION PLANT | PIERRELATTE, France |
| 25-04-1991 | INES 0 | FINGERS INJURY WHILE WORKING ON PRIMARY STEAM ISOLATION VALVE | TARAPUR-2, India |
| 13-04-1991 | INES 0 | HEAVY WATER LEAK FROM INSTRUMENT TUBING | RAJASTHAN-1, India |
| 12-04-1991 | INES 2 | FIRE IN SWITCHGEAR BUILDING | OLKILUOTO-2, Finland |
| 10-04-1991 | INES 3 | UNAVAILABILITY OF LOW POWER EMERGENCY PROTECTION (LPEP) DUE TO LOSS OF IONIZATION CHAMBER POWER SUPPLY | CHERNOBYL-1, Ukraine |
| 08-04-1991 | INES 0 | LEAK FROM FUELLING MACHINE | RAJASTHAN-2, India |
| 07-04-1991 | INES 1 | MISGRAPPLING OF FUEL BUNDLE MB-140 IN THE CORE OF UNIT NO. 2 | TARAPUR-2, India |
| 02-04-1991 | INES 0 | NON-AVAILABILITY OF BOTH DGS DURING MODERATOR SHUT DOWN | KALPAKKAM-1, India |
| 31-03-1991 | INES 1 | WRONG POSITIONING OF THE FUEL ASSEMBLY WHILE PERFORMING FUEL ROD CLADDING INTEGRITY TEST | KOLA-2, Russian Federation |
| 28-03-1991 | INES 0 | UNIT SHUTDOWN DUE TO SHORT CIRCUIT IN THE AUXILIARY POWER TRANSFORMER AND LEAKING OIL FIRE | LENINGRAD-3, Russian Federation |
| 27-03-1991 | INES 0 | UNIT SHUTDOWN DUE TO PRIMARY CIRCUIT LEAK IN THE LINE OF CONTROLLED LEAKS FROM THE MAIN ISOLATION VALVE SEAL | SOUTH UKRAINE-1, Ukraine |
| 19-03-1991 | INES 1 | LEAKAGE IN THE GASEOUS WASTE PROCESSING SYSTEM (GWPS) | ANGRA-1, Brazil |
| 18-03-1991 | INES 0 | UNIT OUTAGE ON CLASS-IV FAILURE | KALPAKKAM-2, India |
| 16-03-1991 | INES 0 | REACTOR SCRAM ON TOTAL LOSS OF OFF-SITE POWER | TARAPUR-1, India |
| 07-03-1991 | INES 1 | HEAVY WATER SPILL FROM MODERATOR SYSTEM | KALPAKKAM-1, India |
| 04-03-1991 | INES 2 | INOPERABILITY OF VALVES OF SAFETY SYSTEMS | GRAVELINES-6, France |
| 26-02-1991 | INES 3 | INOPERABILITY OF VALVES AT THE DISCHARGE SIDE OF HPSI PUMPS IN THREE TRAINS DUE TO FAILURE TO CONNECT POWER CABLES | KHMELNITSKI-1, Ukraine |
| 22-02-1991 | INES 0 | LOWERING OF REACTOR WATER LEVEL BELOW CORE SPRAY ACTUATION LEVEL | TARAPUR-1, India |
| 21-02-1991 | INES 0 | UNIT SHUTDOWN DUE TO COOLANT LEAK IN RCP AUXILIARY PIPELINE | KURSK-4, Russian Federation |
| 20-02-1991 | INES 0 | ADJUSTER ROD 24V DC FAILURE | KALPAKKAM-2, India |
| 13-02-1991 | INES 0 | REACTOR SHUTDOWN DUE TO EXCESS HYDROGEN CONCENTRATION IN THE GENERATOR STATOR GAS TRAP | ZAPOROZHE-4, Ukraine |
| 09-02-1991 | INES 2 | STEAM GENERATOR TUBE BREAK | MIHAMA-2, Japan |
| 05-02-1991 | INES 1 | PRESSURIZER DISCHARGE TANK MEMBRANE RUPTURE | KOZLODUY-2, Bulgaria |
| 23-01-1991 | INES 2 | UNIT SHUTDOWN DUE TO BREACH OF NORMAL OPERATION CONDITIONS | ZAPOROZHE-1, Ukraine |
| 21-01-1991 | INES 0 | REACTOR SCRAM DUE TO A FIRE OF SECOND CATEGORY OF RELIABILITY BUSES | DUKOVANY-1, Czech Republic |
