| File Name |
Date |
Description |
| in91050s1 |
07/17/1997 |
Water Hammer Events Since 1991 |
| in91085r1 |
02/27/1997 |
Potential Failures of Thermostatic Control Valves for Diesel Generator
Jacket Cooling Water |
| in91029s3 |
11/22/1995 |
Deficiencies Identified During Electrical Distribution System Functional
Inspections |
| in91029s2 |
12/22/1993 |
Potential Deficiencies Found During Electrical Distribution System Functional
Inspections |
| in91079s1 |
08/04/1994 |
Deficiencies Found in Thermo-Lag Fire Barrier Installation |
| in91045s1 |
07/29/1994 |
Possible Malfunction of Westinghouse ARD, BFD, and NBFD Relays, and A200
DC and DPC 250 Magnetic Contactors |
| in91081s1 |
05/19/1994 |
Switchyard Problems that Contribute to Loss of Offsite Power |
| in91021s1 |
12/07/1993 |
Inadequate Quality Assurance Program of Vendor Supplying Safety-Related
Equipment |
| in91064s1 |
10/07/1992 |
Site Area Emergency Resulting from a Loss of Non-Class 1E Uninterruptable
Power Supplies |
| in91029s1 |
09/14/1992 |
Deficiencies Identified During Electrical Distribution System Functional
Inspections |
| in91052s1 |
07/16/1992 |
Nonconservative Errors in Overtemperature Delta-Temperature (OTdT) Setpoint
Caused by Improper Gain Setting |
| in91087 |
12/27/1991 |
Hydrogen Embrittlement of Raychem Cryofit Couplings |
| in91086 |
12/27/1991 |
New Reporting Requirements for Contamination Events at Medical Facilities
(10 CFR 30.50) |
| in91085 |
12/26/1991 |
Potential Failures of Thermostatic Control Valves for Diesel Generator
Jacket Cooling Water |
| in91084 |
12/26/1991 |
Problems with Criticality Alarm Components/Systems |
| in91083 |
12/20/1991 |
Solenoid-Operated Valve Failures Resulted in Turbine Overspeed |
| in91018s1 |
12/18/1991 |
High-Energy Piping Failures Caused by Wall Thinning |
| in91082 |
12/18/1991 |
Problems with Diaphragms in Safety-Related Tanks |
| in91081 |
12/16/1991 |
Switchyard Problems that Contribute to Loss of Offsite Power |
| in91080 |
12/11/1991 |
Failure of Anchor Head Threads on Post-Tensioning System During Surveillance
Inspection |
| in91079 |
12/06/1991 |
Deficiencies in the Procedures for Installing Thermo-Lag Fire Barrier
Materials |
| in91078 |
11/28/1991 |
Status Indication of Control Power for Circuit Breakers Used in Safety-Related
Applications |
| in91077 |
11/26/1991 |
Shift Staffing at Nuclear Power Plants |
| in91076 |
11/26/1991 |
10 CFR Parts 21 and 50.55(e) Final Rules |
| in91075 |
11/25/1991 |
Static Head Corrections Mistakenly Not Included in Pressure Transmitter
Calibration Procedures |
| in91074 |
11/25/1991 |
Changes in Pressurizer Safety Valve Setpoints Before Installation |
| in91073 |
11/21/1991 |
Loss of Shutdown Cooling During Disassembly of High Pressure Safety Injection
System Check Valve |
| in91072 |
11/19/1991 |
Issuance of a Revision to the EPA Manual of Protective Action Guides and
Protective Actions for Nuclear Incidents |
| in91071 |
11/12/1991 |
Training and Supervision of Individuals Supervised by an Authorized User
|
| in91070 |
11/04/1991 |
Improper Installation of Instrumentation Modules |
| in91069 |
11/01/1991 |
Errors in Main Steam Line Break Analyses for Determining Containment Parameters
|
| in91068 |
10/28/1991 |
Careful Planning Significantly Reduces the Potential Adverse Impacts of
Loss of Offsite Power Events During Shutdown |
| in91067 |
10/21/1991 |
Problems with the Reliable Detection of Intergranular Attack (IGA) of
Steam Generator Tubing |
| in91066 |
10/18/1991 |
(1) Erroneous Data in ... NUREG/CR-0095 and (2) Thermal Scattering Data
Limitation ... KENO and SCALE Codes |
| in91065 |
10/16/1991 |
Emergency Access to Low-Level Radioactive Waste Disposal Facilities |
| in91064 |
10/09/1991 |
Site Area Emergency Resulting from a Loss of Non-Class 1E Uninterruptible
Power Supplies |
| in91063 |
10/03/1991 |
Natural Gas Hazards at Fort St. Vrain Nuclear Generating Station |
| in91062 |
09/30/1991 |
Diesel Engine Damage Caused by Hydraulic Lockup Resulting from Fluid Leakage
into Cylinders |
| in91061 |
09/30/1991 |
Preliminary Results of Validation Testing of Motor-Operated Valve Diagnostic
Equipment |
| in91060 |
09/24/1991 |
False Alarms of Alarm Ratemeters Because of Radiofrequency Interference
|
| in91059 |
09/23/1991 |
Problems with Access Authorization Programs |
| in91058 |
09/20/1991 |
Dependency of Offset Disc Butterfly Valve's Operation on Orientation with
Respect to Flow |
| in91057 |
09/19/1991 |
Operational Experience on Bus Transfers |
| in91056 |
09/19/1991 |
Potential Radioactive Leakage to Tank Vented to Atmosphere |
| in91055 |
09/16/1991 |
Failures Caused by an Improperly Adjusted Test Link in 4.16 KV General
Electric Switchgear |
| in91054 |
09/06/1991 |
Foreign Experience Regarding Boron Dilution |
| in91053 |
09/04/1991 |
Failure of Remote Shutdown System Instrumentation Because of Incorrectly
Installed Components |
| in91052 |
08/29/1991 |
Nonconservative Errors in Overtemperature Delta-Temperature (OTdT) Setpoint
Caused by Improper Gain Settings |
| in91051 |
08/20/1991 |
Inadequate Fuse Control Programs |
| in91050 |
08/20/1991 |
A Review of Water Hammer Events After 1985 |
| in91049 |
08/15/1991 |
Enforcement of Safety Requirements for Radiographers |
| in91048 |
08/09/1991 |
False Certificates of Conformance Provided by Westinghouse Electric Supply
Company for Commercial-Grade Circuit Breakers |
| in91047 |
08/06/1991 |
Failure of Thermo-Lag Fire Barrier Material to Pass Fire Endurance Test
|
| in91046 |
07/18/1991 |
Degradation of Emergency Diesel Generator Fuel Oil Delivery Systems |
| in91043 |
07/05/1991 |
Recent Incidents Involving Rapid Increases in Primary-to-Secondary Leak
Rate |
| in91044 |
07/08/1991 |
Improper Control of Chemicals in Nuclear Fuel Fabrication |
| in91045 |
07/05/1991 |
Possible Malfunction of Westinghouse ARD, BFD, and NBFD Relays, and A200
DC and DPC 250 Magnetic Contactors |
| in91042 |
06/27/1991 |
Plant Outage Events Involving Poor Coordination Between Operations and Maintenance
Personnel During Valve Testing and Manipulations |
| in91041 |
06/27/1991 |
Potential Problems with the Use of Freeze Seals |
| in91040 |
06/19/1991 |
Contamination of Nonradioactive System and Resulting Possibility for Unmonitored,
Uncontrolled Release to Environment |
| in91039 |
06/17/1991 |
Compliance with 10 CFR Part 21, "Reporting of Defects and Noncompliance"
|
| in91038 |
06/13/1991 |
Thermal Stratification in Feedwater System Piping |
| in91037 |
06/10/1991 |
Compressed Gas Cylinder Missile Hazards |
| in91036 |
06/10/1991 |
Nuclear Plant Staff Working Hours |
| in91035 |
06/07/1991 |
Labeling Requirements for Transporting Multi-Hazard Radioactive Materials
|
| in91034 |
06/03/1991 |
Potential Problems in Identifying Causes of Emergency Diesel Generator
Malfunctions |
| in91033 |
05/31/1991 |
Reactor Safety Information for States During Exercises and Emergencies
|
| in91032 |
05/15/1991 |
Possible Flaws in Certain Piping Systems Fabricated by Associated Piping
and Engineering |
| in91031 |
05/09/1991 |
Nonconforming Magnaflux Magnetic Particle (14AM) Prepared Bath |
| in91030 |
04/23/1991 |
Inadequate Calibration of TLDs Utilized to Monitor Extremity Dose at Uranium
Processing and Fabrication Facilities |
| in91029 |
04/15/1991 |
Deficiencies Identified During Electrical Distribution System Functional
Inspections |
| in91028 |
04/15/1991 |
Cracking in Feedwater System Piping |
| in91027 |
04/10/1991 |
Incorrect Rotation of Positive Displacement Pump |
| in91026 |
04/02/1991 |
Potential Nonconservative Errors ... Working Format Hansen-Roach Cross-Section
Set Provided with the KENO and SCALE Codes |
| in91025 |
04/01/1991 |
Commercial-Grade Structural Framing Components Supplied as Nuclear Safety-Related
Equipment |
| in91024 |
03/26/1991 |
Recent Operating Experience Involving Reactor Operation Without a Licensed
RO or SRO Present in the Control Room |
| in91023 |
03/26/1991 |
Accidental Radiation Overexposures to Personnel Due to Industrial Radiography
Accessory Equipment Malfunctions |
| in91022 |
03/19/1991 |
Four Plant Outage Events Involving Loss of AC Power or Coolant Spills
|
| in91021 |
03/19/1991 |
Inadequate Quality Assurance Program of Vendor Supplying Safety-Related
Equipment |
| in91021 |
03/19/1991 |
Inadequate Quality Assurance Program of Vendor Supplying Safety-Related
Equipment |
| in91020 |
03/19/1991 |
Electrical Wire Insulation Degradation Caused Failure in a Safety-Related
Motor Control Center |
| in91021 |
03/19/1991 |
Inadequate Quality Assurance Program of Vendor Supplying Safety-Related
Equipment |
| in91019 |
03/12/1991 |
Steam Generator Feedwater Distribution Piping Damage |
| in91018 |
03/12/1991 |
High-Energy Piping Failures Caused by Wall Thinning |
| in91017 |
03/11/1991 |
Fire Safety of Temporary Installations or Services |
| in91016 |
03/06/1991 |
Unmonitored Release Pathways from Slightly Contaminated Recycle and Recirculation
Water Systems at a Fuel Facility |
| in91015 |
03/06/1991 |
Incorrect Configuration of Breaker Operating Springs in General Electric
AK-Series Metal-Clad Circuit Breakers |
| in91014 |
03/05/1991 |
Recent Safety-Related Incidents at Large Irradiators |
| in91013 |
03/04/1991 |
Inadequate Testing of Emergency Diesel Generators (EDGs) |
| in91011 |
02/20/1991 |
Inadequate Physical Separation and Electrical Isolation of Non-Safety-Related
Circuits From RPS Circuits |
| in91012 |
02/15/1991 |
Potential Loss of Net Positive Suction Head (NPSH) of Standby Liquid Control
System Pumps |
| in91010 |
02/12/1991 |
Summary of Semiannual Program Performance Reports on Fitness-for-Duty
(FFD) in the Nuclear Industry |
| in91009, rev. 1 |
09/25/2007 |
Counterfeiting of Crane Valves |
| in91009 |
02/05/1991 |
See in91009, rev 1 |
| in91008 |
02/05/1991 |
Medical Examination for Licensed Operators |
| in91007 |
02/04/1991 |
Maintenance Deficiency Associated with General Electric Horizontal Custom
8000 Induction Motors |
| in91006 |
01/31/1991 |
Lock-Up of Emergency Diesel Generator and Load Sequencer Control Circuits
Preventing Restart of Tripped EDG |
| in91005 |
01/30/1991 |
Intergranular Stress Corrosion Cracking in Pressurized Water Reactor Safety
Injection Accumulator Nozzles |
| in91004 |
01/28/1991 |
Reactor Scram Following Control Rod Withdrawal Associated with Low Power
Turbine Testing |
| in91003 |
01/07/1991 |
Management of Wastes Contaminated with Radioactive Materials ("Red Bag"
Waste and Ordinary Trash) |
| in91002 |
01/07/1991 |
Brachytherapy Source Management |
| in91001 |
01/04/1991 |
Supplier of Misrepresented Resistors |
