| Document Number |
Title |
Revision |
Publish Date |
Reviewed Date |
| IN-91-87 |
Hydrogen Embrittlement of Raychem Cryofit Couplings |
-- |
12/27/1991 |
-- |
| IN-91-86 |
New Reporting Requirements for Contamination Events at Medical Facilities (10 CFR 30.50) |
-- |
12/27/1991 |
-- |
| IN-91-85 |
Potential Failures of Thermostatic Control Valves for Diesel Generator Jacket Cooling Water |
1 |
02/27/1997 |
-- |
| -- |
12/26/1991 |
-- |
| IN-91-84 |
Problems with Criticality Alarm Components/Systems |
-- |
12/26/1991 |
-- |
| IN-91-83 |
Solenoid-Operated Valve Failures Resulted in Turbine Overspeed |
-- |
12/20/1991 |
-- |
| IN-91-82 |
Problems with Diaphragms in Safety-Related Tanks |
-- |
12/18/1991 |
-- |
| IN-91-81 |
Switchyard Problems that Contribute to Loss of Offsite Power |
S1 |
05/19/1994 |
-- |
| -- |
12/16/1991 |
-- |
| IN-91-80 |
Failure of Anchor Head Threads on Post-Tensioning System During Surveillance Inspection |
-- |
12/11/1991 |
-- |
| IN-91-79 |
Deficiencies in the Procedures for Installing Thermo-Lag Fire Barrier Materials |
S1 |
08/04/1994 |
-- |
| -- |
12/06/1991 |
-- |
| IN-91-78 |
Status Indication of Control Power for Circuit Breakers Used in Safety-Related Applications |
-- |
11/28/1991 |
-- |
| IN-91-77 |
Shift Staffing at Nuclear Power Plants |
-- |
11/26/1991 |
-- |
| IN-91-76 |
10 CFR Parts 21 and 50.55(e) Final Rules |
-- |
11/26/1991 |
-- |
| IN-91-75 |
Static Head Corrections Mistakenly Not Included in Pressure Transmitter Calibration Procedures |
-- |
11/25/1991 |
-- |
| IN-91-74 |
Changes in Pressurizer Safety Valve Setpoints Before Installation |
-- |
11/25/1991 |
-- |
| IN-91-73 |
Loss of Shutdown Cooling During Disassembly of High Pressure Safety Injection System Check Valve |
-- |
11/21/1991 |
-- |
| IN-91-72 |
Issuance of a Revision to the EPA Manual of Protective Action Guides and Protective Actions for Nuclear Incidents |
-- |
11/19/1991 |
-- |
| IN-91-71 |
Training and Supervision of Individuals Supervised by an Authorized User |
-- |
11/12/1991 |
-- |
| IN-91-70 |
Improper Installation of Instrumentation Modules |
-- |
11/04/1991 |
-- |
| IN-91-69 |
Errors in Main Steam Line Break Analyses for Determining Containment Parameters |
-- |
11/01/1991 |
-- |
| IN-91-68 |
Careful Planning Significantly Reduces the Potential Adverse Impacts of Loss of Offsite Power Events During Shutdown |
-- |
10/28/1991 |
-- |
| IN-91-67 |
Problems with the Reliable Detection of Intergranular Attack (IGA) of Steam Generator Tubing |
-- |
10/21/1991 |
-- |
| IN-91-66 |
(1) Erroneous Data in ... NUREG/CR-0095 and (2) Thermal Scattering Data Limitation ... KENO and SCALE Codes |
-- |
10/18/1991 |
-- |
| IN-91-65 |
Emergency Access to Low-Level Radioactive Waste Disposal Facilities |
-- |
10/16/1991 |
-- |
| IN-91-64 |
Site Area Emergency Resulting from a Loss of Non-Class 1E Uninterruptable Power Supplies |
S1 |
10/07/1992 |
-- |
| -- |
10/09/1991 |
-- |
| IN-91-63 |
Natural Gas Hazards at Fort St. Vrain Nuclear Generating Station |
-- |
10/03/1991 |
-- |
| IN-91-62 |
Diesel Engine Damage Caused by Hydraulic Lockup Resulting from Fluid Leakage into Cylinders |
-- |
09/30/1991 |
-- |
| IN-91-61 |
Preliminary Results of Validation Testing of Motor-Operated Valve Diagnostic Equipment |
-- |
09/30/1991 |
-- |
| IN-91-60 |
False Alarms of Alarm Ratemeters Because of Radiofrequency Interference |
-- |
09/24/1991 |
-- |
| IN-91-59 |
Problems with Access Authorization Programs |
-- |
09/23/1991 |
-- |
| IN-91-58 |
Dependency of Offset Disc Butterfly Valve's Operation on Orientation with Respect to Flow |
-- |
09/20/1991 |
-- |
| IN-91-57 |
Operational Experience on Bus Transfers |
-- |
09/19/1991 |
-- |
| IN-91-56 |
Potential Radioactive Leakage to Tank Vented to Atmosphere |
-- |
09/19/1991 |
-- |
| IN-91-55 |
Failures Caused by an Improperly Adjusted Test Link in 4.16 KV General Electric Switchgear |
-- |
09/16/1991 |
-- |
| IN-91-54 |
Foreign Experience Regarding Boron Dilution |
-- |
09/06/1991 |
-- |
| IN-91-53 |
Failure of Remote Shutdown System Instrumentation Because of Incorrectly Installed Components |
-- |
09/04/1991 |
-- |
| IN-91-52 |
Nonconservative Errors in Overtemperature Delta-Temperature (OTdT) Setpoint Caused by Improper Gain Setting |
S1 |
07/16/1992 |
-- |
| -- |
08/29/1991 |
-- |
| IN-91-51 |
Inadequate Fuse Control Programs |
-- |
08/20/1991 |
-- |
| IN-91-50 |
A Review of Water Hammer Events After 1985 |
S1 |
07/17/1997 |
-- |
| -- |
08/20/1991 |
-- |
| IN-91-49 |
Enforcement of Safety Requirements for Radiographers |
-- |
08/15/1991 |
-- |
| IN-91-48 |
False Certificates of Conformance Provided by Westinghouse Electric Supply Company for Commercial-Grade Circuit Breakers |
-- |
08/09/1991 |
-- |
| IN-91-47 |
Failure of Thermo-Lag Fire Barrier Material to Pass Fire Endurance Test |
-- |
08/06/1991 |
-- |
| IN-91-46 |
Degradation of Emergency Diesel Generator Fuel Oil Delivery Systems |
-- |
07/18/1991 |
-- |
| IN-91-45 |
Possible Malfunction of Westinghouse ARD, BFD, and NBFD Relays, and A200 DC and DPC 250 Magnetic Contactors |
S1 |
07/29/1994 |
-- |
| -- |
07/05/1991 |
-- |
| IN-91-44 |
Improper Control of Chemicals in Nuclear Fuel Fabrication |
-- |
07/08/1991 |
-- |
| IN-91-43 |
Recent Incidents Involving Rapid Increases in Primary-to-Secondary Leak Rate |
-- |
07/05/1991 |
-- |
| IN-91-42 |
Plant Outage Events Involving Poor Coordination Between Operations and Maintenance Personnel During Valve Testing and Manipulations |
-- |
06/27/1991 |
-- |
| IN-91-41 |
Potential Problems with the Use of Freeze Seals |
-- |
06/27/1991 |
-- |
| IN-91-40 |
Contamination of Nonradioactive System and Resulting Possibility for Unmonitored, Uncontrolled Release to Environment |
-- |
06/19/1991 |
-- |
| IN-91-39 |
Compliance with 10 CFR Part 21, "Reporting of Defects and Noncompliance" |
-- |
06/17/1991 |
-- |
| IN-91-38 |
Thermal Stratification in Feedwater System Piping |
-- |
06/13/1991 |
-- |
| IN-91-37 |
Compressed Gas Cylinder Missile Hazards |
-- |
06/10/1991 |
-- |
| IN-91-36 |
Nuclear Plant Staff Working Hours |
-- |
06/10/1991 |
-- |
| IN-91-35 |
Labeling Requirements for Transporting Multi-Hazard Radioactive Materials |
-- |
06/07/1991 |
-- |
| IN-91-34 |
Potential Problems in Identifying Causes of Emergency Diesel Generator Malfunctions |
-- |
06/03/1991 |
-- |
| IN-91-33 |
Reactor Safety Information for States During Exercises and Emergencies |
-- |
05/31/1991 |
-- |
| IN-91-32 |
Possible Flaws in Certain Piping Systems Fabricated by Associated Piping and Engineering |
-- |
05/15/1991 |
-- |
| IN-91-31 |
Nonconforming Magnaflux Magnetic Particle (14AM) Prepared Bath |
-- |
05/09/1991 |
-- |
| IN-91-30 |
Inadequate Calibration of TLDs Utilized to Monitor Extremity Dose at Uranium Processing and Fabrication Facilities |
-- |
04/23/1991 |
-- |
| IN-91-29 |
Deficiencies Identified During Electrical Distribution System Functional Inspections |
S3 |
11/22/1995 |
-- |
| S2 |
12/22/1993 |
-- |
| S1 |
09/14/1992 |
-- |
| -- |
04/15/1991 |
-- |
| IN-91-28 |
Cracking in Feedwater System Piping |
-- |
04/15/1991 |
-- |
| IN-91-27 |
Incorrect Rotation of Positive Displacement Pump |
-- |
04/10/1991 |
-- |
| IN-91-26 |
Potential Nonconservative Errors ... Working Format Hansen-Roach Cross-Section Set Provided with the KENO and SCALE Codes |
-- |
04/02/1991 |
-- |
| IN-91-25 |
Commercial-Grade Structural Framing Components Supplied as Nuclear Safety-Related Equipment |
-- |
04/01/1991 |
-- |
| IN-91-24 |
Recent Operating Experience Involving Reactor Operation Without a Licensed RO or SRO Present in the Control Room |
-- |
03/26/1991 |
-- |
| IN-91-23 |
Accidental Radiation Overexposures to Personnel Due to Industrial Radiography Accessory Equipment Malfunctions |
-- |
03/26/1991 |
-- |
| IN-91-22 |
Four Plant Outage Events Involving Loss of AC Power or Coolant Spills |
-- |
03/19/1991 |
-- |
| IN-91-21 |
Inadequate Quality Assurance Program of Vendor Supplying Safety-Related Equipment |
S1 |
12/07/1993 |
-- |
| -- |
03/19/1991 |
-- |
| IN-91-20 |
Electrical Wire Insulation Degradation Caused Failure in a Safety-Related Motor Control Center |
-- |
03/19/1991 |
-- |
| IN-91-19 |
Steam Generator Feedwater Distribution Piping Damage |
-- |
03/12/1991 A 03/12/1991 B |
-- |
| IN-91-18 |
High-Energy Piping Failures Caused by Wall Thinning |
S1 |
12/18/1991 |
-- |
| -- |
03/12/1991 |
-- |
| IN-91-17 |
Fire Safety of Temporary Installations or Services |
-- |
03/11/1991 |
-- |
| IN-91-16 |
Unmonitored Release Pathways from Slightly Contaminated Recycle and Recirculation Water Systems at a Fuel Facility |
-- |
03/06/1991 |
-- |
| IN-91-15 |
Incorrect Configuration of Breaker Operating Springs in General Electric AK-Series Metal-Clad Circuit Breakers |
-- |
03/06/1991 |
-- |
| IN-91-14 |
Recent Safety-Related Incidents at Large Irradiators |
-- |
03/05/1991 |
-- |
| IN-91-13 |
Inadequate Testing of Emergency Diesel Generators (EDGs) |
-- |
03/04/1991 |
-- |
| IN-91-12 |
Potential Loss of Net Positive Suction Head (NPSH) of Standby Liquid Control System Pumps |
-- |
02/15/1991 |
-- |
| IN-91-11 |
Inadequate Physical Separation and Electrical Isolation of Non-Safety-Related Circuits From RPS Circuits |
-- |
02/20/1991 |
-- |
| IN-91-10 |
Summary of Semiannual Program Performance Reports on Fitness-for-Duty (FFD) in the Nuclear Industry |
-- |
02/12/1991 |
-- |
| IN-91-09 |
Counterfeiting of Crane Valves |
1 |
09/25/2007 |
-- |
| -- |
02/05/1991 |
-- |
| IN-91-08 |
Medical Examination for Licensed Operators |
-- |
02/05/1991 |
-- |
| IN-91-07 |
Maintenance Deficiency Associated with General Electric Horizontal Custom 8000 Induction Motors |
-- |
02/04/1991 |
-- |
| IN-91-06 |
Lock-Up of Emergency Diesel Generator and Load Sequencer Control Circuits Preventing Restart of Tripped EDG |
-- |
01/31/1991 |
-- |
| IN-91-05 |
Intergranular Stress Corrosion Cracking in Pressurized Water Reactor Safety Injection Accumulator Nozzles |
-- |
01/30/1991 |
-- |
| IN-91-04 |
Reactor Scram Following Control Rod Withdrawal Associated with Low Power Turbine Testing |
-- |
01/28/1991 |
-- |
| IN-91-03 |
Management of Wastes Contaminated with Radioactive Materials ("Red Bag" Waste and Ordinary Trash) |
-- |
01/07/1991 |
-- |
| IN-91-02 |
Brachytherapy Source Management |
-- |
01/07/1991 |
-- |
| IN-91-01 |
Supplier of Misrepresented Resistors |
-- |
01/04/1991 |
-- |