ML19309G740
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| ML19309G740 | |
| Person / Time | |
|---|---|
| Site: | Marble Hill |
| Issue date: | 04/28/1980 |
| From: | Shields S PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA |
| To: | |
| Shared Package | |
| ML19309G741 | List: |
| References | |
| NUDOCS 8005070484 | |
| Download: ML19309G740 (2) | |
Similar Documents at Marble Hill | |
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Category:DEFICIENCY REPORTS (PER 10CFR50.55E & PART 21)
MONTHYEARML20011F5971990-02-22022 February 1990
[Table view]Part 21 Rept Re Solder Connections in Abb 27/59 Relays Deteriorated Due to Thermal Stress,Causing Bonding of Printed Wiring Pattern to Glass Epoxy Circuit Board.Interim Circuit Board W/Larger Pads & Higher Wattage Will Be Used ML20212N1371986-08-25025 August 1986 Part 21 Rept Re Potentially Defective Operation of Synchro-Start Products,Inc Synchronizing Speed Switches Used in Auxiliary Generating Equipment.Initally Reported on 860820.Next Rept Will Be Submitted by 860926 ML20151Y8141986-02-0404 February 1986 Part 21 Rept Re Colt-Pielstick Engine Tripping Out on High Speed When Started for Test Purposes at Seabrook.Caused by Source of Air Pressure Staying On.Engines Will Be Modified to Positively Vent Air from Rack Boost Cylinder ML20137W2611985-09-30030 September 1985 Update to Part 21 Rept Re Insp for Cracked Welds Discovered in Generator Brackets.Insp for Callaway Unit 1 Postponed Until Next Refueling Outage (Probably Apr 1986).No Cracks Discovered During Insp at Wolf Creek ML20100E0651985-03-29029 March 1985 Part 21 Rept Re Series of Cracked Welds Discovered in Generators.Welds Occurred in Conical Baffle Section of Coil Guards.All Units Will Be Inspected.Affected Plants Listed NRC-85-3024, Part 21 Rept Re Possible Undetectable Failures in ESF Actuation Sys.Initially Reported on 791107.Possibility of Undetectable Failures Remain Under Certain Circumstances Despite Change in Hardware1985-03-22022 March 1985 Part 21 Rept Re Possible Undetectable Failures in ESF Actuation Sys.Initially Reported on 791107.Possibility of Undetectable Failures Remain Under Certain Circumstances Despite Change in Hardware ML20084L1151984-05-0808 May 1984 Suppl 1 to Part 21 Rept Re United Electric Controls Fuel Oil Filter Differential Pressure Switches at Shoreham Plant. Switch Also Provided to Listed Plants.Corrective Actions Defined in 840328 Rept Will Be Applied ML20088A6231984-03-28028 March 1984 Part 21 Rept Re Abnormal Wear on Linear Converter Units Mfg & Furnished to Power Generating Facilities.Caused by Actuator Hunting.All Customers Provided Field Lubrication Procedure ML20081C5111984-03-0909 March 1984 Part 21 Rept Re Status Update Concerning Abnormal Wear on Linear Converters.Test Program Underway.Results of Investigation Indicate Excessive Wear Caused by Hunting of Control Circuitry ML20087P7951984-03-0808 March 1984 Interim Part 21 Rept Re Linear Converters Furnished by Pacific Air Products.Initially Reported on 840213.Vendor Investigation of Possible Causes of Excessive Wear Underway. Next Rept by 840730 ML20086L0921984-01-30030 January 1984 Part 21 Rept Re Linear Converter Device W/Possible Generic Defect.Initially Reported on 840116.Written Notifications Issued.Customer Responses Should Be Received by 840331.Final Rept Will Be Submitted by 840430 ML20086L0981984-01-17017 January 1984 Part 21 Rept Re Linear Converter Device W/Possible Generic Defect.Initially Reported on 840116.Preliminary Analysis Indicates Excessive Wear of Brass Shaft Guides.Next Rept Will Be Submitted within 90 Days.Supporting Info Encl ML20083F8211983-12-19019 December 1983 Interim Deficiency Rept Re Diesel Generator Component Support Welds Accepted by Unqualified Inspector.Initially Reported on 831118.Evaluation Continuing.Next Rept Will Be Filed by 840413 ML20083D9561983-12-16016 December 1983 Supplemental Final Deficiency Rept Re Potential for Erroneous Steam Generator Level Indications During High Energy Line Breaks Inside Containment.Initially Reported on 800116.Item Not Reportable Under 10CFR50.55(e) ML20082U8111983-12-0909 December 1983 Interim Deficiency Rept Re Inadequate Penetration (Effective Throat) of Flare Bevel Welds.Initially Reported on 830809. Program Being Developed to Address Quality of Past Flare Bevel Welding.Next Rept Expected by 840511 ML20082J7941983-11-18018 November 1983 Interim Deficiency Rept Re Use of Incorrect Input Values in Design Calculations.Sargent & Lundy Requested to Perform Addl Work Re Incorrect Thermal & Seismic Header Displacements Used in Subsystem 1CS06 ML20082J3401983-11-18018 November 1983 Final Deficiency Rept Re Capstan Spring Malfunction in Pacific Scientific Model PSA-1 & PSA-3 Mechanical Shock Arrestors.Initially Reported on 831021.Shock Arrestors Returned to Pacific Scientific ML20082B7361983-11-10010 November 1983 Interim Deficiency Rept Re Inadequate Implementation of QA Program for Electrical contractor,Commonwealth-Lord Joint Venture.Initially Reported on 830211.Only One Original Audit Finding Remains Open.Next Rept Expected by 840120 ML20081M2041983-11-0303 November 1983 Interim Deficiency Rept Re Lack of QA Involvement in Fabrication of HVAC Ductwork Not Serving safety-related Function.Impairment Due to Failure of nonsafety-related Equipment.Next Rept Expected by 840401 ML20081H4801983-11-0303 November 1983 Followup to Part 21 Rept Re Potential Failure of Westinghouse Type SA-1 Relays (IE Info Notice 83-63).Addl Potential Problems Discussed in Encl Ltr Re Tantalum Capacitor Leaking Electrolyte.Not Reportable Per Part 21 ML20081G4911983-10-31031 October 1983 Interim Deficiency Rept Re safety-related Ductwork Already Installed W/O Engineering Evaluation Necessary to Meet Design Criteria for Seismic Event.Initially Reported on 831003.AE Performing Evaluation.Next Rept by 840309 ML20081H2521983-10-28028 October 1983 Final Deficiency Rept Re Design Changes to Structural Steel Fabrication Drawings for Erection & Insp of Structural Steel.Initially Reported on 820622.Drawings Reviewed & Changes Made to Bring Structural Steel Into Conformance ML20081B3301983-10-20020 October 1983 Interim Deficiency Rept Re Welding Techniques Not Covered by QA Program Used in Fabrication of safety-related Switchgear. Initially Reported on 820525.QA Manual Rewritten & Procedures Revised to Include Controls on Welding ML20081B2441983-10-20020 October 1983 Interim Deficiency Rept Re Westinghouse Centrifugal Charging Pumps at Min Allowable Flow Rate When RCS Reaches Value Below Pressurizer Safety Valve Setpoint Pressure.Initially Reported on 800509.Also Reported Per Part 21 ML20085K5661983-10-13013 October 1983 Interim Deficiency Rept Re Indications That Pullman Const Industries,Inc Failed to Adequately Implement QA Program. Initially Reported on 830228.Reinsp Continuing.Next Rept Will Be Submitted by 840210 ML20080R4231983-10-0707 October 1983 Final Rept Re Cracks in Welds at Stiffeners to Box Beams. Initially Reported on 830715.Welding Method Modified.Cracked Areas Ground Out & Repaired Using Approved Procedures ML20080P1731983-09-30030 September 1983 Interim Deficiency Rept Re Potential for Spec/Design Changes to Remain Unincorporated in as-built Configuration of safety-related Equipment or Structures.Initially Reported on 811208.Procedure Changes in Progress.Next Rept by 840217 ML20078A5031983-09-16016 September 1983 Interim Deficiency Rept Re Potential Inadequacy of Southwest Steel Fabricators,Inc QA Program.Initially Reported on 830524.Review of Items Outside Sampling Program Continuing. Next Rept Will Be Submitted by 840113 ML20024F4521983-08-30030 August 1983 Final Deficiency Rept Re Missing & Deformed Wine Anchors & Cracked Welds Between Plate & Anchor in Primary Shield Wall. Initially Reported on 820818.Alternative Anchorage Sys Installed to Ensure Structural Integrity of Shield Wall ML20024F5721983-08-30030 August 1983 Final Deficiency Rept Re Deformed Wire Anchors Separated from Embedded Plate.Initially Reported on 821020.Results of Tests Indicated Cause Due to Axial Tensile Stress Applied to Welds.Item Not Reportable Per 10CFR50.55(e) ML20024F4901983-08-30030 August 1983 Interim Deficiency Rept Re Inadequate Penetration (Effective Throat) of Flare Bevel Welds.Initially Reported on 830809. Condition May Effect Numerous Cable Tray Supports.Scope & Severity Under Review ML20076F4401983-08-17017 August 1983 Interim Deficiency Rept Re Incorrect Use of Input Valves in Design Calculations.Initially Reported on 830701.Sargent & Lundy Evaluation Underway.Next Rept Will Be Submitted by 831118 ML20076D0541983-08-16016 August 1983 Final Deficiency Rept Re Possible Undetectable Failure Mode Existing in Westinghouse Solid State Protection Sys on-line Testing Circuits.Initially Reported on 820805.New Design Eliminates Problems ML20076C1841983-08-15015 August 1983 Interim Deficiency Rept Re Cracks in Welds at Stiffeners to Box Beams in Containment Bldg.Initially Reported on 830715.Cause Under Investigation.Next Rept Will Be Submitted by 831007 ML20077H6881983-08-0303 August 1983 Interim Deficiency Rept Re Inadequate Implementation of Commonwealth-Lord Joint Venture (Cljv) QA Program.Initially Reported on 830211.CLJV Disposition of Findings & Corrective Action Initiated.Next Rept by 831111 ML20024D6081983-07-29029 July 1983 Interim Deficiency Rept Re Incorrect Output Values in Design Calculations W/Potential to Decrease Allowable Stresses in Some Piping Subsystems.Sargent & Lundy Reviewing Stress Repts for Design Inconsistencies.Next Rept by 831118 ML20077G4431983-07-22022 July 1983 Interim Deficiency Rept Re Audit Findings Showing That Pullman Const Industries,Inc Inadequately Implemented QA Program.Initially Reported on 830228.Work on Corrective Actions Continuing.Next Rept by 831014 ML20077A8271983-07-14014 July 1983 Interim Deficiency Rept Re Welding Techniques Not Covered by Brown-Boveri Electric,Inc QA Program.Initially Reported on 830525.Brown-Boveri Revised Procedures to Include Controls on Welding Activities.Next Rept Expected by 831021 ML20077A9121983-07-13013 July 1983 Interim Deficiency Rept Re Six Sheared Pinion Keys in Limitorque Model SB-O Valve Motor Operators Installed by Westinghouse.Initially Reported on 820805.Item Not Reportable Per 10CFR50.55(e) ML20076L6531983-07-0606 July 1983 Interim Deficiency Rept Re Lack of QA Involvement in Fabrication of Seismic Category I HVAC Duct Work Not Serving safety-related Function.Initially Reported on 830607.Next Rept Expected by 831104 ML20024B7461983-06-30030 June 1983 Final Deficiency Rept Re Heat Sink Failures on Loop Power Supply Cards & Contact Bounce in Mercury Relay Utilized on Temp Channel Test Cards of Westinghouse 7300 Process Protection Sys.Initially Reported on 830603 ML20085A2161983-06-22022 June 1983 Interim Deficiency Rept Re Possible Southwest Steel Fabricator Nonconforming QA Program for Structural Steel Used in safety-related Areas.Initially Reported on 830524. Review Continuing.Next Rept Due by 830916 ML20072F4041983-06-16016 June 1983 Interim Deficiency Rept Re Design Changes Not Shown on Detail Drawings Used by Primary Civil Contractor (Newberg-Marble Hill).Initially Reported on 830622.Drawing Review Continuing.Next Rept by 830826 ML20024A3751983-06-0909 June 1983 Interim Deficiency Rept Re Separation of Deformed Wire Anchors from Embedded Plate in Containment.Initially Reported on 821020.Investigation Re Source of Axial Tensile Stress Applied to Welds Underway.Next Rept Due 830902 ML20071P1861983-05-31031 May 1983 Final Deficiency Rept Re Mechanically Cracked Embedded Box Beam Plate.Initially Reported on 830503.Alternative Welding Methods Investigated.Similar Embedded Plate Welds ML20076E1861983-05-18018 May 1983 Interim Deficiency Rept Re Commonwealth-Lord Joint Venture Failure to Adequately Implement QA Program.Initially Reported on 830211.Nonconformance Repts for Items Not Previously Audited Written.Next Rept by 830805 ML20071G8521983-05-16016 May 1983 Final Deficiency Rept Re Potential for Improper Operation of DS-416 Reactor Trip Switchgear Undervoltage Attachments. Initially Reported on 830421.Attachments to Be Replaced W/ Attachments Having Modified Grooves ML20074A6071983-05-0909 May 1983 Interim Deficiency Rept Re Problem Involving Embedded Plates in Primary Shield Wall W/Deformed Wire Anchors Missing or Welds Between Plate & Anchor Being Cracked.Initially Reported on 820818.Caused by Axial Tensile Stresses ML20073R6921983-04-28028 April 1983 Interim Deficiency Rept Re Operation of Centrifugal Charging Pumps During High Energy Line Rupture.Initially Reported on 800509.Westinghouse & Util Working to Refine Equipment Mod to Mutual Satisfaction.Next Rept by 831028 ML20074A0121983-04-27027 April 1983 Part 21 Rept Re Type SA-1 Class IE Relays.Silicon Controlled Rectifier (SCR) in Trip Output Circuit May Cause Random Trip Output.Westinghouse Corrective Action Includes Replacing SCR w/burn-in SCR 1990-02-22 Category:TEXT-SAFETY REPORT MONTHYEARML20011F5971990-02-22022 February 1990
[Table view]Part 21 Rept Re Solder Connections in Abb 27/59 Relays Deteriorated Due to Thermal Stress,Causing Bonding of Printed Wiring Pattern to Glass Epoxy Circuit Board.Interim Circuit Board W/Larger Pads & Higher Wattage Will Be Used ML20212N1371986-08-25025 August 1986 Part 21 Rept Re Potentially Defective Operation of Synchro-Start Products,Inc Synchronizing Speed Switches Used in Auxiliary Generating Equipment.Initally Reported on 860820.Next Rept Will Be Submitted by 860926 ML20151Y8141986-02-0404 February 1986 Part 21 Rept Re Colt-Pielstick Engine Tripping Out on High Speed When Started for Test Purposes at Seabrook.Caused by Source of Air Pressure Staying On.Engines Will Be Modified to Positively Vent Air from Rack Boost Cylinder ML20137W2611985-09-30030 September 1985 Update to Part 21 Rept Re Insp for Cracked Welds Discovered in Generator Brackets.Insp for Callaway Unit 1 Postponed Until Next Refueling Outage (Probably Apr 1986).No Cracks Discovered During Insp at Wolf Creek ML20102C2381985-03-30030 March 1985 Site Stabilization Plan for Marble Hill Nuclear Generating Station,Units 1 & 2 ML20100E0651985-03-29029 March 1985 Part 21 Rept Re Series of Cracked Welds Discovered in Generators.Welds Occurred in Conical Baffle Section of Coil Guards.All Units Will Be Inspected.Affected Plants Listed NRC-85-3024, Part 21 Rept Re Possible Undetectable Failures in ESF Actuation Sys.Initially Reported on 791107.Possibility of Undetectable Failures Remain Under Certain Circumstances Despite Change in Hardware1985-03-22022 March 1985 Part 21 Rept Re Possible Undetectable Failures in ESF Actuation Sys.Initially Reported on 791107.Possibility of Undetectable Failures Remain Under Certain Circumstances Despite Change in Hardware ML20084L1151984-05-0808 May 1984 Suppl 1 to Part 21 Rept Re United Electric Controls Fuel Oil Filter Differential Pressure Switches at Shoreham Plant. Switch Also Provided to Listed Plants.Corrective Actions Defined in 840328 Rept Will Be Applied ML20088A6231984-03-28028 March 1984 Part 21 Rept Re Abnormal Wear on Linear Converter Units Mfg & Furnished to Power Generating Facilities.Caused by Actuator Hunting.All Customers Provided Field Lubrication Procedure ML20081C5111984-03-0909 March 1984 Part 21 Rept Re Status Update Concerning Abnormal Wear on Linear Converters.Test Program Underway.Results of Investigation Indicate Excessive Wear Caused by Hunting of Control Circuitry ML20087P7951984-03-0808 March 1984 Interim Part 21 Rept Re Linear Converters Furnished by Pacific Air Products.Initially Reported on 840213.Vendor Investigation of Possible Causes of Excessive Wear Underway. Next Rept by 840730 ML20086L0921984-01-30030 January 1984 Part 21 Rept Re Linear Converter Device W/Possible Generic Defect.Initially Reported on 840116.Written Notifications Issued.Customer Responses Should Be Received by 840331.Final Rept Will Be Submitted by 840430 ML20086L0981984-01-17017 January 1984 Part 21 Rept Re Linear Converter Device W/Possible Generic Defect.Initially Reported on 840116.Preliminary Analysis Indicates Excessive Wear of Brass Shaft Guides.Next Rept Will Be Submitted within 90 Days.Supporting Info Encl ML20093L3381983-12-31031 December 1983 Annual Rept 1983,Public Svc of Indiana ML20083F8211983-12-19019 December 1983 Interim Deficiency Rept Re Diesel Generator Component Support Welds Accepted by Unqualified Inspector.Initially Reported on 831118.Evaluation Continuing.Next Rept Will Be Filed by 840413 ML20083D9561983-12-16016 December 1983 Supplemental Final Deficiency Rept Re Potential for Erroneous Steam Generator Level Indications During High Energy Line Breaks Inside Containment.Initially Reported on 800116.Item Not Reportable Under 10CFR50.55(e) ML20082U8111983-12-0909 December 1983 Interim Deficiency Rept Re Inadequate Penetration (Effective Throat) of Flare Bevel Welds.Initially Reported on 830809. Program Being Developed to Address Quality of Past Flare Bevel Welding.Next Rept Expected by 840511 ML20082J7941983-11-18018 November 1983 Interim Deficiency Rept Re Use of Incorrect Input Values in Design Calculations.Sargent & Lundy Requested to Perform Addl Work Re Incorrect Thermal & Seismic Header Displacements Used in Subsystem 1CS06 ML20082J3401983-11-18018 November 1983 Final Deficiency Rept Re Capstan Spring Malfunction in Pacific Scientific Model PSA-1 & PSA-3 Mechanical Shock Arrestors.Initially Reported on 831021.Shock Arrestors Returned to Pacific Scientific ML20082B7361983-11-10010 November 1983 Interim Deficiency Rept Re Inadequate Implementation of QA Program for Electrical contractor,Commonwealth-Lord Joint Venture.Initially Reported on 830211.Only One Original Audit Finding Remains Open.Next Rept Expected by 840120 ML20081M2041983-11-0303 November 1983 Interim Deficiency Rept Re Lack of QA Involvement in Fabrication of HVAC Ductwork Not Serving safety-related Function.Impairment Due to Failure of nonsafety-related Equipment.Next Rept Expected by 840401 ML20081H4801983-11-0303 November 1983 Followup to Part 21 Rept Re Potential Failure of Westinghouse Type SA-1 Relays (IE Info Notice 83-63).Addl Potential Problems Discussed in Encl Ltr Re Tantalum Capacitor Leaking Electrolyte.Not Reportable Per Part 21 ML20081G4911983-10-31031 October 1983 Interim Deficiency Rept Re safety-related Ductwork Already Installed W/O Engineering Evaluation Necessary to Meet Design Criteria for Seismic Event.Initially Reported on 831003.AE Performing Evaluation.Next Rept by 840309 ML20081H2521983-10-28028 October 1983 Final Deficiency Rept Re Design Changes to Structural Steel Fabrication Drawings for Erection & Insp of Structural Steel.Initially Reported on 820622.Drawings Reviewed & Changes Made to Bring Structural Steel Into Conformance ML20081B3301983-10-20020 October 1983 Interim Deficiency Rept Re Welding Techniques Not Covered by QA Program Used in Fabrication of safety-related Switchgear. Initially Reported on 820525.QA Manual Rewritten & Procedures Revised to Include Controls on Welding ML20081B2441983-10-20020 October 1983 Interim Deficiency Rept Re Westinghouse Centrifugal Charging Pumps at Min Allowable Flow Rate When RCS Reaches Value Below Pressurizer Safety Valve Setpoint Pressure.Initially Reported on 800509.Also Reported Per Part 21 ML20085K5661983-10-13013 October 1983 Interim Deficiency Rept Re Indications That Pullman Const Industries,Inc Failed to Adequately Implement QA Program. Initially Reported on 830228.Reinsp Continuing.Next Rept Will Be Submitted by 840210 ML20080R4231983-10-0707 October 1983 Final Rept Re Cracks in Welds at Stiffeners to Box Beams. Initially Reported on 830715.Welding Method Modified.Cracked Areas Ground Out & Repaired Using Approved Procedures ML20085L3731983-09-30030 September 1983 Independent Const Review of Marble Hill Units 1 & 2, Vol 3, Potential Finding Repts & Corrective Action Plans ML20085L3651983-09-30030 September 1983 Independent Const Review of Marble Hill Units 1 & 2, Vol 2, Program Results ML20085L3601983-09-30030 September 1983 Independent Const Review of Marble Hill Units 1 & 2, Vol 1, Executive Summary ML20080P1731983-09-30030 September 1983 Interim Deficiency Rept Re Potential for Spec/Design Changes to Remain Unincorporated in as-built Configuration of safety-related Equipment or Structures.Initially Reported on 811208.Procedure Changes in Progress.Next Rept by 840217 ML20078A5031983-09-16016 September 1983 Interim Deficiency Rept Re Potential Inadequacy of Southwest Steel Fabricators,Inc QA Program.Initially Reported on 830524.Review of Items Outside Sampling Program Continuing. Next Rept Will Be Submitted by 840113 ML20024F4521983-08-30030 August 1983 Final Deficiency Rept Re Missing & Deformed Wine Anchors & Cracked Welds Between Plate & Anchor in Primary Shield Wall. Initially Reported on 820818.Alternative Anchorage Sys Installed to Ensure Structural Integrity of Shield Wall ML20024F4901983-08-30030 August 1983 Interim Deficiency Rept Re Inadequate Penetration (Effective Throat) of Flare Bevel Welds.Initially Reported on 830809. Condition May Effect Numerous Cable Tray Supports.Scope & Severity Under Review ML20024F5721983-08-30030 August 1983 Final Deficiency Rept Re Deformed Wire Anchors Separated from Embedded Plate.Initially Reported on 821020.Results of Tests Indicated Cause Due to Axial Tensile Stress Applied to Welds.Item Not Reportable Per 10CFR50.55(e) ML20076F4401983-08-17017 August 1983 Interim Deficiency Rept Re Incorrect Use of Input Valves in Design Calculations.Initially Reported on 830701.Sargent & Lundy Evaluation Underway.Next Rept Will Be Submitted by 831118 ML20076D0541983-08-16016 August 1983 Final Deficiency Rept Re Possible Undetectable Failure Mode Existing in Westinghouse Solid State Protection Sys on-line Testing Circuits.Initially Reported on 820805.New Design Eliminates Problems ML20076C1841983-08-15015 August 1983 Interim Deficiency Rept Re Cracks in Welds at Stiffeners to Box Beams in Containment Bldg.Initially Reported on 830715.Cause Under Investigation.Next Rept Will Be Submitted by 831007 ML20077H6881983-08-0303 August 1983 Interim Deficiency Rept Re Inadequate Implementation of Commonwealth-Lord Joint Venture (Cljv) QA Program.Initially Reported on 830211.CLJV Disposition of Findings & Corrective Action Initiated.Next Rept by 831111 ML20024D6081983-07-29029 July 1983 Interim Deficiency Rept Re Incorrect Output Values in Design Calculations W/Potential to Decrease Allowable Stresses in Some Piping Subsystems.Sargent & Lundy Reviewing Stress Repts for Design Inconsistencies.Next Rept by 831118 ML20080B4951983-07-29029 July 1983 Nonproprietary Version of Independent Evaluation of Proposed Mods to Westinghouse D4,D5 & E Steam Generators ML20077G4431983-07-22022 July 1983 Interim Deficiency Rept Re Audit Findings Showing That Pullman Const Industries,Inc Inadequately Implemented QA Program.Initially Reported on 830228.Work on Corrective Actions Continuing.Next Rept by 831014 ML20077A8271983-07-14014 July 1983 Interim Deficiency Rept Re Welding Techniques Not Covered by Brown-Boveri Electric,Inc QA Program.Initially Reported on 830525.Brown-Boveri Revised Procedures to Include Controls on Welding Activities.Next Rept Expected by 831021 ML20077K9251983-07-14014 July 1983 Annual Financial Rept 1982 ML20077A9121983-07-13013 July 1983 Interim Deficiency Rept Re Six Sheared Pinion Keys in Limitorque Model SB-O Valve Motor Operators Installed by Westinghouse.Initially Reported on 820805.Item Not Reportable Per 10CFR50.55(e) ML20076L6531983-07-0606 July 1983 Interim Deficiency Rept Re Lack of QA Involvement in Fabrication of Seismic Category I HVAC Duct Work Not Serving safety-related Function.Initially Reported on 830607.Next Rept Expected by 831104 ML20024B7461983-06-30030 June 1983 Final Deficiency Rept Re Heat Sink Failures on Loop Power Supply Cards & Contact Bounce in Mercury Relay Utilized on Temp Channel Test Cards of Westinghouse 7300 Process Protection Sys.Initially Reported on 830603 ML20085A2161983-06-22022 June 1983 Interim Deficiency Rept Re Possible Southwest Steel Fabricator Nonconforming QA Program for Structural Steel Used in safety-related Areas.Initially Reported on 830524. Review Continuing.Next Rept Due by 830916 ML20072F4041983-06-16016 June 1983 Interim Deficiency Rept Re Design Changes Not Shown on Detail Drawings Used by Primary Civil Contractor (Newberg-Marble Hill).Initially Reported on 830622.Drawing Review Continuing.Next Rept by 830826 1990-02-22 |
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PUBLIC SERVICE INDIANA S. W. Shields Vice Presicant E'ectric Syrem April 28, 1980 Mr. James G. Keppler, Director Docket Nos.: STN 50-546 U. S. Nuclear Regulatory Co= mission STN 50-547 Region III Construction Permit Nos.: _
799 Roosevelt Road CPPR - 170 Glen Ellyn, Illinois 60137 CPPR - 171 Marble Hill Nuclear Generating Station Units 1 and 2
Dear Mr. Keppler:
On June 4, 1979, Mr. C. E. Chmielewski of Public Service Company of Indiana, Inc. (PSI) telephoned your office to notify you of a potentially reportable item as required by 10CFR 50.55(e). The following repcrt resolves that item and constitutes a final report under the Regulation.
On March 29, 1979, a concrete void was discovered in the Auxiliary Lu11 ding slab at elevation 373'-6". The void was visually inspected on April 6, 1979, and ultrasonically tested on May 7 and 8, 1979. The results of these inspections revealed that the void extended 25' in the north-south direction, up to 9' in the east-west direction and vertically from the bottem layer of reinforcing bars to the mud mat 12" below. A void of this size could degrade the structural integrity of the Auxiliary Building and therefore make it unable to meet its seismic requirements.
A repair of the void was, implemented by first excavating enough material under the slab to allow access for workmen and tools. All unsound concrete was removed. The intended configuration of the bottom of the slab was then restored with shotcrete. The shotcrete repair was tested ultrasonically and found to be acceptable. The ultrasonic examination of this void before and after repair is also discussed in the Sargent
& Lundy report, SL-3753, Evaluation of In-Place Concrete, Marble Hill Nuclear Generating Station, Units 1 and 2. An approved procedure written by the Newberg Construction Company will be utilized for filling in the remainder of the void and for backfilling the excavated material under the slab. This procedure is enclosed with this letter.
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1000 East Main Street. Plainfield, Indiana 46168 317. 839 .9611
A PUBUC SERVICY
. INDIANA Letter: Mr. James G. Keppler April 28, 1980 4
Corrective actions taken to prevent the reoccurrence of this problen are discussed in the " Description of License Activities Addressing Order Confirming Suspension of Construction" sabmitted to the Nuclear Regulatory Cc=sission on February 2S, 1980. If you have any questions
! on this report, please feel free to contact'=e.
i Sincerely, s' _
S. W. Shields j TDG/brs cc: Jirector of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 E. R. Schweibinz, P. E. <
J. J. Harrison i
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