ML19338E899
| ML19338E899 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 09/26/1980 |
| From: | Parker W DUKE POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8010060281 | |
| Download: ML19338E899 (2) | |
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Category:DEFICIENCY REPORTS (PER 10CFR50.55E & PART 21)
MONTHYEARML18016A9011999-04-12012 April 1999
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Instantaneous Trip Check Will Be Instituted on All Class 1E Thermal/Magnetic Ambient Breakers Prior to Shipment ML20248E0121989-09-13013 September 1989 Supplemental Part 21 Rept Re Potential Problem W/Six Specific Engine Control Devices in Air Start,Lube Oil, Jacket Water & Crankcase Sys.Initially Reported on 890429. California Controls Co Will Redesign Valve Seating ML20247P7991989-04-0404 April 1989 Part 21 Rept Re Atmospheric Dump Valves.Cause of Failure Speculative But Result of Piston Ring That Failed to Seal. Resolution to Problem Requires Increasing Pilot Valve Capacity & Reworking of Plug to Enlarge Pilot Flow Area ML20207P0451988-10-0505 October 1988 Part 21 Rept 146 Re Defect in Left Intercooler Inlet Adapter on Standby Diesel Engine Generator.Recommends Utils Inspect Left Intake Manifold Drain as Part of Operating Plan.Addl Info Expected by 881015 ML20245D9541988-09-0606 September 1988 Part 21 Rept Re Condition Involving Inconel 600 Matl Used to Fabricate Steam Generator Tube Plugs & Found to Possess Microstructure Susceptible to Stress Corrosion Cracking ML20154J4101988-05-12012 May 1988 Addendum 1 to Supplemental Part 21 Rept 145 Re Potential Problem w/F-573-156 Pressure Sensor/Lube Oil Trip.Initially Reported on 880429.Addl 1-1/8-inch Diameter W/Deep Counterbone in Pressure Head Added to Activate Valve ML20153B6191988-04-29029 April 1988 Part 21 Rept Re Potential Defect in Component of Dsr or Dsrv Standby Diesel Generators Supplied to Utils.Recommends Return of Subj Components in Onsite Warehouse Storage & Suggests Surveillance of Devices Already Installed ML20151A2801988-03-30030 March 1988 Part 21 Rept Re Broken/Cracked Springs in Plant Pressure Valves.Magnetic Particle Exam of Springs from 18 Valves on Unit 2 Performed in Jan 1988 & Spring from Valve BS-02893 Rejected for Linear Indication.Insp Completed ML20236E4851987-07-27027 July 1987 Corrected Part 21 Rept Re Broken/Cracked Springs in Consolidated Type 3787WA Valves.Valves Incorrectly Identified as Type 3727WA in 870203 & 0702 Ltrs.Unit 1 Springs Received Magnetic Particle Exam ML20216E4721987-05-28028 May 1987 Part 21 Rept 140 Re Potential Defect in Air Pressure Regulators Mfg by Bellofram.Dripwell Gasket May Fail Due to Mismachining of Gasket Seating Surface Causing Loss of Control Air & Starting Air Pressure ML20211P7211987-02-23023 February 1987 Part 21 Rept Re Rockbestos Coaxial Cable Used in Sorrento Electronics Digital & Analog high-range Radiation Monitor. Insulation Resistance at High Temp Not High Enough for Ion Chamber & Associated Electronics to Operate Properly ML20214E1971987-02-0303 February 1987 Annotated Part 21 Rept Re Cracked D34 Springs in Alco Spring Industries,Inc Type 3727WA Safety Valves.All Springs Being Examined.Springs Displaying Relevant Indications Will Be Replaced ML20214M3181986-09-0404 September 1986 Potential Part 21 Rept Re Contromatics Actuator W/Jackscrew/ Handwheel Emergency Override Operator.Jackscrew/Handwheel Should Be Used for Emergency Manual Operation Only.Encl Ltr Also Sent to Listed Utils/Ae Firms ML20205F6141986-08-13013 August 1986 Part 21 Rept Re Connecting Rod Bolts for Dsrv Engines.Listed Procedures Recommended for Next Connecting Rod Insp, Including Replacement of Bolts Due to Cracked Threads & Large Grooves & Galls in Threads ML20206U0591986-07-0202 July 1986 Part 21 Rept Re Potential Defect in Component of Dsrv Standby Diesel Generators,Involving Problem W/Fastening of Engine Connecting Rod Assembly Which Could Result in Engine Nonavailability.Procedure Will Be Issued by 860718 ML20206S0841986-06-30030 June 1986 Part 21 Rept Re Possible Cut Wires in Wire Harness of Bbc Brown Boveri K600/K800 Circuit Breakers.Initially Reported on 860509.Safety Implications Listed.Gear Guard Designed to Prevent Cut Wires ML20154N3431986-03-10010 March 1986 Initial Part 21 Rept 135 Re Potential Problem W/Lube Oil Sump Tank Foot Valve of Dsrv Standby Diesel Generator for Facilities.Cause Not Determined.Recommends Utils Inspect Condition of Foot Valve Liners & Notify Tdi of Findings ML20214D5071986-02-19019 February 1986 Final Significant Deficiency Rept SD 414/86-01 Re Emergency Diesel Engine 2B Main Bearing 7 Failure.Initially Reported on 860116.Caused by Misinstallation by Mfg,Sand Blast Grit &/Or Oil Contamination.Engine Rebuilt ML20137P2411986-01-16016 January 1986 Significant Deficiency & Part 21 Rept SD 414/86-02 Re Valve Spring Failures on Tdi DMRV-16-4 Diesel Engines.Initially Reported on 851217.Springs Will Be Changed During First Appropriate Refueling Outage ML20137P2381986-01-16016 January 1986 Significant Deficiency Rept SD 414/86-01 Re Failure of Main Bearing Shell 7 During Break in Run of Tdi Unit 2B Diesel Generator.Initially Reported on 851219.Installation Procedures Enhanced.Crankshaft Journal Cleaned ML20137N4991985-12-26026 December 1985 Significant Deficiency Rept 414/85-12 Re Missing Spring in Air Actuator of Pressurized Porv.Initially Reported on 851206.Valve W/Missing Spring Replaced.Investigation Continuing ML20137K9601985-12-10010 December 1985 Part 21 Rept Re Actuators Having Only One of Required Two Springs Which Could Result in Reduction of Integrity of Reactor Coolant Boundary.Valves Supplied to McGuire Units 1 & 2 & Catawba Unit 2.Catawba Unit 2 Valve Corrected ML20138B7201985-11-22022 November 1985 Final Significant Deficiency Rept SD 414/85-10 Re Failure of Hydrogen Skimmer Fan Motors Supplied by Joy Mfg Co.Initially Reported on 850626.Cause Undetermined.Fan Motors Reassembled,Retested & Reinstalled ML20198C4981985-11-0606 November 1985 Part 21 Rept Re Potential Defect in Dsr or Dsrv Standby Diesel Generator Intake & Exhaust Valve Springs Mfg by Betts Spring Co.Users Recommended to Inspect Engines for Broken Springs & Identify Original Mfg ML20136E5821985-11-0505 November 1985 Significant Deficiency Rept 414/85-11 Re High Priority Mods Required Prior to Fuel Loading.Administrative Controls Implemented to Control Personnel Access to Penetration Area During in-core Instrument Movement ML20198C2081985-10-24024 October 1985 Significant Deficiency Rept SD 414/85-11 Re Unconsidered Effects of Radiation Streaming Through Reactor Bldg Penetrations from post-LOCA Atmospheric Activity.Initially Reported on 850924 ML20205F4701985-10-18018 October 1985 Final Part 21 & Significant Deficiency Rept SD 414/85-05 Re Potential Problem W/Starting Air Check Valves in on-engine Modified Starting Air Piping.Initially Reported on 850419. Modified Disk Assemblies Installed ML20235C9361985-09-0404 September 1985 Part 21 Rept Re Consolidated 3787WA Safety Valve Spring Failure for Plant.Investigation Indicated That Presence of Precracks Filled W/Nonmetallic Deposits Combined W/Low Impact Strength to Cause Preservice Failures ML20132B0261985-09-0303 September 1985 Part 21 Rept Re Possibility of Engine Ingestion of Unwelded Part in American Air Filter Standby Diesel Generator Intake Silencer.Immediate Hold Should Be Placed on Diesel Engines/Intake Silencers Not Yet in Svc ML20135E5461985-08-30030 August 1985 Significant Deficiency Rept 414/85-07 Re Required Mods to Battery Racks.Mods to Battery Racks Will Be Implemented & Rejarred Battery Cells Will Be Installed by 851101 ML20134N0441985-08-15015 August 1985 Significant Deficiency Rept 414/85-06.Work on Listed Nonconforming Items Complete ML20133P1511985-07-26026 July 1985 Significant Deficiency Rept SD 414/85-10 Re Failure of Joy Mfg Co Hydrogen Skimmer Fans in Assemblies Designed by Reliance Electronic Co.Initially Reported on 850626.Fans Disassembled for Evaluation.Next Rept Expected by 851101 ML20133N8781985-07-24024 July 1985 Supplemental Significant Deficiency Rept SD 414/85-06 Re Chemical & Vol Control Sys.Engineering Evaluation of Undamaged Portions of Sys for Overpressurization Included 1999-04-12 Category:TEXT-SAFETY REPORT MONTHYEARML20212J1891999-10-0101 October 1999
[Table view]Safety Evaluation Supporting Exemption from 10CFR54.17(c)re Schedule to Apply for Renewed Operating Licenses ML20212A6271999-09-30030 September 1999 Rev 0 to WCAP-15243, Anaylsis of Capsule V & Capsule Y Dosimeters from Duke Energy Catawba Unit 2 Reactor Vessel Radiation Surveillance Program ML20217H0201999-09-30030 September 1999 Monthly Operating Repts for Sept 1999 for Catawba Nuclear Station,Units 1 & 2 05000413/LER-1999-015, :on 990616,discovered That Auxiliary Bldg Filtered Ventilation Exhaust Sys Was Inoperable.Caused by Improperly Positioned Vortex Damper.Damper Was Repositioned Correctly & Sys Was Retested Successfully1999-09-27027 September 1999
1999-09-07 |
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Duxz POWER COMPANY Powsm Duis.oixo 422 Socin Cnuncu Sruzer, CnAar.orrt R C.asa.sa witU = o. nnnen.sn. September 26, 1980 VsCE 88mttsetMT Tc6conome; Anta 7C4 Sf taas P800uCYtON 373 4083 l
Mr. J. P. O'Reilly, Director U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia .'10303 Re: Catawba Nulcear Station Units 1 and 2 Docket Nos. 50-413 and 50-414
Dear Mr. O'Reilly:
Pursuant to 10CFR 50.55e, please find attached Significant Deficiency Report SD 413-414/80-13.
Very'truly yours,
- - - ~ LA .
lWilliamO. Parker,Jc.
RWO:ses Attachment cc: Director NRC Resident Inspector Office of. Inspection & Enforcement Catawba Nuclear Station U. S. Nuclear Regulatory Commission Washington, D. C. 20555 -
/I Bf)10060 3 i
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CATAWBA NUCLEAR STATION REPORT NUMBER: 50 413-414/80-1 REPORT DATE: September 26, 1980 FACILITY: Catawba Nuclear Station Units 1 and 2 IDENTIFICATION OF DEFICIENCY: Improper operation of optical isolator model 175Cl41.
INITIAL REPORT: On August 28, 1980, Mr. John Rausche of .9egion II was notified of this deficiency by Mr. J. R. Wells and'Mr. J. E. Thomas of Duke Power Company, Charlotte, NC 28242.
SUPPLIER / COMPONENT: The malfunctioning optical isolators were part number 175C141, supplied by E-max Instruments, Inc., Englewood, Colorado, in !
accordance with Duke Power Specification: CNS-1338.00-00-0001. I l
DESCRIPTION OF DEFICIENCY: During operation and testing a number of the subject {
isolators _ failed to operate properly when driving loads with greater than j one amp inrush current. It has been determined that the one amp inruth t
current exceeds the capacity of this model isolator. This deficiency I potentially affects approximately 57. of the isolators installed at the l Catawba Nuclear Staion.
SAFETY IMPLICATIONS: Failure of the isolator output to correctly respond to the input could prevent proper operation of a safety function of that circuit. However, the isolation capability of these devices is not affected by the described deficiency.
CORRECTIVE ACTION: All model 175C141 isolators driving loads with excessive inrush current will be changed out with isolator part number 175Cl46, of adequate current capacity. This change is scheduled to be completed by 1/1/82.
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