Qualification of Control Systems| ML031180167 |
| Person / Time |
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| Site: |
05000000 |
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| Issue date: |
09/14/1979 |
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| From: |
NRC/IE |
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| To: |
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| References |
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| IN-79-022, NUDOCS 7908220124 |
| Download: ML031180167 (3) |
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Category:NRC Information Notice
MONTHYEARInformation Notice 1990-15, Reciprocity Notification of Agreement State Radiation Control Directors Before Beginning Work in Agreement States1990-03-17017 March 1990
Reciprocity Notification of Agreement State Radiation Control Directors Before Beginning Work in Agreement States
Information Notice 1990-18, Potential Problems With Crosby Safety Relief Valves Used on Diesel Generator Air Start Receiver Tanks1990-03-0909 March 1990
Potential Problems With Crosby Safety Relief Valves Used on Diesel Generator Air Start Receiver Tanks
Information Notice 1990-18, Potential Problems with Crosby Safety Relief Valves Used on Diesel Generator Air Start Receiver Tanks1990-03-0909 March 1990
Potential Problems with Crosby Safety Relief Valves Used on Diesel Generator Air Start Receiver Tanks
Information Notice 1990-17, Weight and Center of Gravity Discrepancies for Copes-Vulcan Valves1990-03-0808 March 1990
Weight and Center of Gravity Discrepancies for Copes-Vulcan Valves
Information Notice 1990-16, Compliance with New Decommissioning Rule1990-03-0707 March 1990
Compliance with New Decommissioning Rule
Information Notice 1990-14, Accidental Disposal of Radioactive Materials1990-03-0606 March 1990
Accidental Disposal of Radioactive Materials
Information Notice 1990-13, Importance of Review and Analysis of Safeguards Event Logs1990-03-0505 March 1990
Importance of Review and Analysis of Safeguards Event Logs
Information Notice 1990-11, Maintenance Deficiency Associated with Solenoid-Operated Valves1990-02-28028 February 1990
Maintenance Deficiency Associated with Solenoid-Operated Valves
Information Notice 1990-12, Monitoring or Interruption of Plant Communications1990-02-28028 February 1990
Monitoring or Interruption of Plant Communications
Information Notice 1990-09, Extended Interim Storage of Low-Level Radioactive Waste by Fuel Cycle and Materials Licensees1990-02-0505 February 1990
Extended Interim Storage of Low-Level Radioactive Waste by Fuel Cycle and Materials Licensees
Information Notice 1990-08, KR-85 Hazards From Decayed Fuel1990-02-0101 February 1990
KR-85 Hazards From Decayed Fuel
Information Notice 1990-08, KR-85 Hazards from Decayed Fuel1990-02-0101 February 1990
KR-85 Hazards from Decayed Fuel
Information Notice 1990-07, New Information Regarding Insulation Material Performance and Debris Blockage of PWR Containment Sumps1990-01-30030 January 1990
New Information Regarding Insulation Material Performance and Debris Blockage of PWR Containment Sumps
Information Notice 1990-06, Potential for Loss of Shutdown Cooling While at Low Reactor Coolant Levels1990-01-29029 January 1990
Potential for Loss of Shutdown Cooling While at Low Reactor Coolant Levels
Information Notice 1990-05, Inter-System Discharge of Reactor Coolant1990-01-29029 January 1990
Inter-System Discharge of Reactor Coolant
Information Notice 1990-03, Malfunction of Borg-Warner Bolted Bonnet Check Valves Caused by Failure of the Swing Arm1990-01-23023 January 1990
Malfunction of Borg-Warner Bolted Bonnet Check Valves Caused by Failure of the Swing Arm
Information Notice 1990-02, Potential Degradation of Secondary Containment1990-01-22022 January 1990
Potential Degradation of Secondary Containment
Information Notice 1990-01, Importance of Proper Response to Self-Identified Violations by Licensees1990-01-12012 January 1990
Importance of Proper Response to Self-Identified Violations by Licensees
Information Notice 1989-89, Event Notification Worksheets1989-12-26026 December 1989
Event Notification Worksheets
Information Notice 1989-88, Recent NRC-Sponsored Testing of Motor-Operated Valves1989-12-26026 December 1989
Recent NRC-Sponsored Testing of Motor-Operated Valves
Information Notice 1989-87, Disabling of Emergency Diesel Generators by Their Neutral Ground-Fault Protection Circuitry1989-12-19019 December 1989
Disabling of Emergency Diesel Generators by Their Neutral Ground-Fault Protection Circuitry
Information Notice 1989-85, Epa'S Interim Final Rule on Medical Waste Tracking and Management1989-12-15015 December 1989
Epa'S Interim Final Rule on Medical Waste Tracking and Management
Information Notice 1989-86, Type Hk Circuit Breakers Missing Close Latch Anti-Shock Springs1989-12-15015 December 1989
Type Hk Circuit Breakers Missing Close Latch Anti-Shock Springs
Information Notice 1989-83, Sustained Degraded Voltage on the Offsite Electrical Grid and Loss of Other Generating Stations as a Result of a Plant Trip1989-12-11011 December 1989
Sustained Degraded Voltage on the Offsite Electrical Grid and Loss of Other Generating Stations as a Result of a Plant Trip
Information Notice 1989-83, Sustained Degraded Voltage on the Offsite Electrical Grid and Loss of Other Generating Stations As a Result of a Plant Trip1989-12-11011 December 1989
Sustained Degraded Voltage on the Offsite Electrical Grid and Loss of Other Generating Stations As a Result of a Plant Trip
Information Notice 1989-82, Recent Safety-Related Incidents at Large Irradiators1989-12-0707 December 1989
Recent Safety-Related Incidents at Large Irradiators
Information Notice 1989-59, Suppliers of Potentially Misrepresented Fasteners1989-12-0606 December 1989
Suppliers of Potentially Misrepresented Fasteners
Information Notice 1989-81, Inadequate Control of Temporary Modifications to Safety-Related Systems1989-12-0606 December 1989
Inadequate Control of Temporary Modifications to Safety-Related Systems
Information Notice 1989-80, Potential for Water Hammer, Thermal Strafication, and Steam Binding in High-Pressure Coolant Injection Piping1989-12-0101 December 1989
Potential for Water Hammer, Thermal Strafication, and Steam Binding in High-Pressure Coolant Injection Piping
Information Notice 1989-79, Degraded Coatings and Corrosion of Steel Containment Vessels1989-12-0101 December 1989
Degraded Coatings and Corrosion of Steel Containment Vessels
Information Notice 1989-56, Questionable Certification of Material Supplied to the Defense Dept. by Nuclear Suppliers1989-11-22022 November 1989
Questionable Certification of Material Supplied to the Defense Dept. by Nuclear Suppliers
Information Notice 1989-56, Questionable Certification of Material Supplied to the Defense Dept. By Nuclear Suppliers1989-11-22022 November 1989
Questionable Certification of Material Supplied to the Defense Dept. By Nuclear Suppliers
Information Notice 1989-78, Failure of Packing Nuts on One-Inch Uranium Hexafluoride Cylinder Valves1989-11-22022 November 1989
Failure of Packing Nuts on One-Inch Uranium Hexafluoride Cylinder Valves
Information Notice 1989-76, Biofouling Agent: Zebra Mussel1989-11-21021 November 1989
Biofouling Agent: Zebra Mussel
Information Notice 1989-77, Debris in Containment Emergency Sumps and Incorrect Screen Configurations1989-11-21021 November 1989
Debris in Containment Emergency Sumps and Incorrect Screen Configurations
Information Notice 1989-75, Falsification of Welder Qualifications for Contractor Employees1989-11-20020 November 1989
Falsification of Welder Qualifications for Contractor Employees
Information Notice 1989-74, Clarification of Transportation Requirements Applicable to Return of Spent Radiopharmacy Dosages from Users to Suppliers1989-11-0707 November 1989
Clarification of Transportation Requirements Applicable to Return of Spent Radiopharmacy Dosages from Users to Suppliers
Information Notice 1989-73, Potential Overpressurization of Low Pressure Systems1989-11-0101 November 1989
Potential Overpressurization of Low Pressure Systems
Information Notice 1989-72, Failure of Licensed Senior Operators to Classify Emergency Events Properly1989-10-24024 October 1989
Failure of Licensed Senior Operators to Classify Emergency Events Properly
Information Notice 1989-71, Diversion of the Residual Heat Removal Pump Seal Cooling Water Flow During Recirculation Operation Following a Loss-Of-Coolant Accident1989-10-19019 October 1989
Diversion of the Residual Heat Removal Pump Seal Cooling Water Flow During Recirculation Operation Following a Loss-Of-Coolant Accident
Information Notice 1989-70, Possible Indications of Misrepresented Vendor Products1989-10-11011 October 1989
Possible Indications of Misrepresented Vendor Products
Information Notice 1989-68, Evaluation of Instrument Setpoints During Modifications1989-09-25025 September 1989
Evaluation of Instrument Setpoints During Modifications
Information Notice 1989-67, Loss of Residual Heat Removal Caused by Accumulator Nitrogen Injection1989-09-13013 September 1989
Loss of Residual Heat Removal Caused by Accumulator Nitrogen Injection
Information Notice 1989-66, Qualification Life of Solenoid Valves1989-09-11011 September 1989
Qualification Life of Solenoid Valves
Information Notice 1989-65, Potential for Stress Corrosion Cracking in Steam Generator Tube Plugs Supplied by Babcock and Wilcox1989-09-0808 September 1989
Potential for Stress Corrosion Cracking in Steam Generator Tube Plugs Supplied by Babcock and Wilcox
Information Notice 1989-64, Electrical Bus Bar Failures1989-09-0707 September 1989
Electrical Bus Bar Failures
Information Notice 1989-63, Possible Submergence of Electrical Circuits Located Above the Flood Level Because of Water Intrusion and Lack of Drainage1989-09-0505 September 1989
Possible Submergence of Electrical Circuits Located Above the Flood Level Because of Water Intrusion and Lack of Drainage
Information Notice 1989-62, Malfunction of Borg-Warner Pressure Seal Bonnet Check Valves Caused by Vertical Misalignment of Disk1989-08-31031 August 1989
Malfunction of Borg-Warner Pressure Seal Bonnet Check Valves Caused by Vertical Misalignment of Disk
Information Notice 1989-61, Failure of Borg-Warner Gate Valves to Close Against Differential Pressure1989-08-30030 August 1989
Failure of Borg-Warner Gate Valves to Close Against Differential Pressure
Information Notice 1989-58, Disablement of Turbine-Driven Auxiliary Feedwater Pump Due to Closure of One of the Parallel Steam Supply Valves1989-08-0303 August 1989
Disablement of Turbine-Driven Auxiliary Feedwater Pump Due to Closure of One of the Parallel Steam Supply Valves
1990-03-09
[Table view] |
Accession No: 790822011 SSINS: 6870
UNITED STATES
NUCLEAR REGULATORY COMMISSION
OFFICE OF INSPECTION AND ENFORCEMENT
WASHINGTON, D.C. 20555 September 14, 1979 IE Information Notice No. 79-22
QUALIFICATION OF CONTROL SYSTEMS
Public Service Electric and Gas Company notified the NRC of a potential unreviewed
safety question at their Salem Unit 1 facility. This notification was based on a
continuing review by Westinghouse of the environmental qualifications of equipment
that they supply for nuclear steam supply systems. Based on the present status
of this effort, Westinghouse has informed their customers that the performance
of non-safety grade equipment subjected to an adverse environment could impact
the protective functions performed by safety grade equipment. These non-safety
grade systems include:
Steam generator power operated relief valve control system
Pressurizer power operated relief valve control system
Main feedwater control system
Automatic rod control system
These systems could potentially malfunction due to albigh energy line break
inside or outside of containment. NRC is also concerned that the adverse
environment could also give erroneous information to the plant operators.
Westinghouse states that the consequences of such an event could possibly be
more limiting than results presented in Safety Analysis Reports, however, Westinghouse also states that the severity of the results can be limited
by operator actions together with operating characterisitics of the safety
systems. Further, Westinghouse has recommended to their customers that they
review their systems to determine whether any unreviewed safety questions exist.
This Information Notice is provided as an early notification of a possibly
significant matter. It is expected that recipients will review the information
for possible applicability to their facilities. No specific action or response
is requested at this time. If NRC evaluations so indicate, further licensee
actions may be requested or required. If you have questions regarding this matter, please contact the Director of the appropriate NRC Regional Office.
No written response to this Information Notice is required.
. I ._. 'A -
IE Information Notice No. ; 22 Enclosure
September 14, 1979 LISTING OF IE INFORMATION NOTICES
ISSUED IN LAST SIX MONTHS
Information Subject Date Issued To
Notice No. Issued
79-05 Use of Improper Materials 3/21/79 All power reactor
in Safety-Related Components facilities with an
OL or CP
79-06 Stress Analysis of 3/23/79 All Holders of
Safety-Related Piping Reactor OL or CP
79-07 Rupture of Radwaste Tanks 3/26/79 All power reactor
facilities with an
OL or CP
79-08 Interconnection of 3/28/79 All power reactor
Contaminated Systems with facilities with an
Service Air Systems Used OL and Pu Processing
As the Source of Breathing fuel facilities
Air
79-09 Spill of Radioactively 3/30/79 All power reactor
Contaminated Resin facilities with an
OL
79-10 Nonconforming Pipe 4/16/79 All power reactor
Support Struts facilities with a
CP
79-11 Lower Reactor Vessel Head 5/7/79. All holders of Reactor
Insulation Support Problem .;4. OLs and CPs
79-12 Attempted Damage to New 5/11/79 All Fuel Facilities
Fuel Assemblies Research Reactors, and Power Reactors
with an OL or CP
79-13 Indication of Low Water 5/29/79 All Holders of Reactor
Level in the Oyster Creek OLs and CPs
Reactor
79-14 NRC Position of Electrical 6/11/79 All Power Reactor
Cable Support Systems Facilities with a
CP
79-15 Deficient Procedures 6/7/79 All Holders of Reactor
OLs and CPs
I
IE Information Notice No. 79-22 Enclosure
September 14, 1979 LISTING OF IE INFORMATION NOTICES
ISSUED IN 1979 Information Subject Date Issued To
Notice No. Issued
79-16 Nuclear Incident at Three 6/22/79 All Research Reactors
Mile Island and Test Reactors
with OLs
79-17 Source Holder Assembly Damage 6/20/79 All Holders of Reactor
Damage From Misfit Between OLs and CPs
Assembly and Reactor Upper
Grid Plate
79-18 Skylab Reentry 7/5/79 All Holders of Reactor
OLs
79-19 Pipe Cracks In Stagnant 7/17/79 All Holders of Reactor
Borated Water Systems At OLs and CPs
PWR Plants
79-20 NRC Enforcement Policy 8/10/79 All Holders of Reactor
NRC Licensed Individuals OLs and CPs and Production
Licensees with Licensed
Operators
79-21 Transportation and Commercial 9/7/79 All power and research
Burial of Radioactive Material reactors with OL's
No.
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| list | - Information Notice 1979-01, Bergen-Paterson Hydraulic Shock & Sway Arrestors (Hssa) (2 February 1979)
- Information Notice 1979-01, Bergen-Paterson Hydraulic Shock & Sway Arrestors (HSSA) (2 February 1979)
- Information Notice 1979-03, Limitorque Valve Geared Limit Switch Lubricant (9 February 1979)
- Information Notice 1979-04, Degradation of Engineered Safety Features (16 February 1979)
- Information Notice 1979-05, Use of Improper Materials in Safety-Related Components (21 March 1979)
- Information Notice 1979-06, Stress Analysis of Safety-Related Piping (23 March 1979, Topic: Earthquake)
- Information Notice 1979-07, Rupture of Radwaste Tanks (26 March 1979)
- Information Notice 1979-08, Interconnection of Contaminated Systems with Service Air Systems Used as Source of Breathing Air (28 March 1979)
- Information Notice 1979-08, Interconnection of Contaminated Systems With Service Air Systems Used As Source of Breathing Air (28 March 1979)
- Information Notice 1979-09, Spill of Radioactively Contaminated Resin (30 March 1979, Topic: Hydrostatic)
- Information Notice 1979-19, Pipe Cracks in Stagnant Borated Water Systems at PWR Plants (17 July 1979, Topic: Boric Acid, Hydrostatic, Liquid penetrant)
- Information Notice 1979-20, NRC Enforcement Policy - NRC Licensed Individuals (7 September 1979)
- Information Notice 1979-21, Transportation & Commercial Burial of Radioactive Material (7 September 1979)
- Information Notice 1979-22, Qualification of Control Systems (14 September 1979)
- Information Notice 1979-24, Overpressurization of Containment of a PWR Plant After a Main Steam Line Break (1 October 1979)
- Information Notice 1979-25, Reactor Trips at Turkey Point Units 3 & 4 (1 October 1979)
- Information Notice 1979-26, Breach of Containment Integrity (5 November 1979)
- Information Notice 1979-28, Overloading of Structural Elements Due to Pipe Support Loads (16 November 1979)
- Information Notice 1979-29, Loss of Nonsafety-Related Reactor Coolant System Instrumentation During Operation (16 November 1979)
- Information Notice 1979-30, Reporting of Defects & Noncompliances, 10 CFR Part 21 (6 December 1979)
- Information Notice 1979-31, Use of Incorrect Amplified Response Spectra (13 December 1979)
- Information Notice 1979-32, Separation of Electrical Cables for HPCI and ADS (21 December 1979, Topic: Fire Watch)
- Information Notice 1979-33, Improper Closure of Primary Containment Equipment Access Matches (21 December 1979)
- Information Notice 1979-34, Inadequate Design of Safety-Related Heat Exchangers (27 December 1979)
- Information Notice 1979-35, Control of Maintenance & Essential Equipment (31 December 1979)
- Information Notice 1979-36, Computer Code Defect in Stress Analysis of Piping Elbow (31 December 1979)
- Information Notice 1979-37, Cracking in Low Pressure Turbine Discs (28 December 1979, Topic: Turbine Missile)
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