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Category:DEFICIENCY REPORTS (PER 10CFR50.55E & PART 21)
MONTHYEARML20058K3841993-12-0909 December 1993 Part 21 Rept Re Potential Defect in Component of Dsrv & Dsr Enterprise Standby DG Sys,Regarding Potential Problem W/ Subcover Assembled Atop Power Head 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 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 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 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 ML20153G1021986-02-19019 February 1986 Part 21 Rept Re Potential Defect in K-1 Relays of Dsr or Dsrv Standby Diesel Generators Mfg by Gould/Ite.Relays Have Incorrect Voltage Range.Dc Voltage Source or Voltage Regulator Circuitry Requires Mod 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 ML20084G3531984-04-19019 April 1984 Final Deficiency Rept Re Pacific Scientific Co Shock Arrestor Capstan Spring Tang.Initially Reported on 831013. Bellefonte Snubbers Will Be Replaced & Hartsville Snubbers Returned to Vendor for Repair.Springs Subj to Insp ML20087J6661984-03-0808 March 1984 Followup Part 21 Rept Re Nuclear Valve/Actuator Stroking Time Possibly Lengthened Beyond 15 When Using hydrocarbon-based Lubricants.Ltrs to Affected Utils Encl ML20081C0171984-03-0101 March 1984 First Interim Deficiency Rept Re Loose Drive Hubs on Overspeed Governor Drive Shaft on Transamerica Delaval,Inc Diesels.Initially Reported on 840203.Svc Info Memo Being Reviewed for Approval.Also Reportable Per Part 21 ML20079N5121984-01-23023 January 1984 Final Deficiency Rept Re Delaval Problem W/Starting Air Valve Assembly on Standby Diesels.Initially Reported on 821201.Capscrews Replaced Per Approved Procedure & Drawings Revised to Reflect Shorter Length ML20083H1921984-01-0505 January 1984 First Interim Deficiency Rept Re Transamerica Delaval,Inc QA Program.Initially Reported on 831206.Final Configuration for Control Cabinet Indicates Drawing Revs K,L & M Not Incorporated.Also Reportable Per Part 21 ML20083E1981983-12-20020 December 1983 First Interim Deficiency Rept Re Fuel Oil Line Rupture in Transamerica Delaval,Inc Generator.Initially Reported on 831121.Const Activities Deferred for Hartsville Units 1 & 2. Next Rept Expected by 840413.Also Reported Per Part 21 ML20078B3811983-09-0606 September 1983 Part 21 Rept Re Matrix Actuator Model 33122-SR 80.Mounting Bolts Loosened & Spring Return Cylinder Began to Separate from Ctr Body of Actuator.Investigation Being Conducted by Xomox Corp ML20077G6661983-07-27027 July 1983 Part 21 Rept Re Circuit Breakers Mfg Between Nov 1981 & Feb 1982.Breakers Should Be Inspected for Broken Puffer Linkage Studs.Stud Identified as Part Number 192247A.List of Circuit Breakers for Nuclear Plants Encl ML20083L9751983-05-27027 May 1983 Part 21 Rept Re Failure of Circuit Breakers During Environ Testing.Test Results Indicate That Temp Sensitivity Problem May Be Generic to All Ite Imperial Corp thermal-magnetic Circuit Breakers Calibr for 40 C Svc ML20076H1601983-05-23023 May 1983 Pt 21 Rept Re Potential Defect in Transmitter Mfg by Rosemount,Inc Used in Control Sys Components Furnished to Listed Plants.All Components Involved Retrofitted W/New Circuit Boards.Matter Closed ML20074A2041983-04-26026 April 1983 Interim Deficiency Rept Re Misapplication of Ite Gould Circuit Breakers in post-LOCA Hydrogen Recombiners Supplied by Rockwell Intl.Initially Reported on 830328.Matter Under Investigation.Final Rept by 830808.Reported Per Part 21 ML20069K6811983-04-18018 April 1983 First Interim Deficiency Rept Re Pipe Support Spacing Utilizing Alternate Criteria.Initially Reported on 830317. Investigation Postponed Until Design & Const Resumed ML20073J8051983-04-12012 April 1983 Third Interim Deficiency Rept Re Nonconservative Calculation Method for General Const Spec G-32 Violations.Initially Reported on 820528.Design Std Being Revised to Clarify Use of Factors of Safety in DS-C6.1 ML20073P1281983-04-0808 April 1983 Second Interim Deficiency Rept Re Problem W/Delaval Starting Air Valve Assembly on Standby Diesels.Initially Reported on 821201.Util Continuing to Attempt to Acquire Necessary Info from Transamerica Delaval,Inc.Also Reported Per Part 21 ML20072Q9571983-03-28028 March 1983 First Interim Deficiency Rept Re Failure of Util Div of Engineering Design to Provide Bolt Tightening Requirements to Div of Const.Initially Reported on 830228.Const Deferred. Rept to Be Submitted When Const Decision Made ML20072R3291983-03-28028 March 1983 Interim Deficiency Rept 1 Re CF Braun Documentation Control Program Failure to Monitor Closeout of Final Design Change Control Documents.Initially Reported on 830302.Final Rept Due Upon Commencement of Const.Also Reportable Per Part 21 ML20074A2221983-03-11011 March 1983 Part 21 Rept Re Failure of post-LOCA Hydrogen Recombiner Component During IEEE-323 Qualification Program.Circuit Breaker Not Properly Selected for Specific Application.Plant Operators Notified of Deviation ML20028G0821983-01-31031 January 1983 Final Deficiency Rept Re Itt Grinnell Failure to Use Proper Testing Methods.Initially Reported on 810304.Spool Pieces re-examined Per ASME Section III,1974 Edition,Winter Addenda 1975 Code.Condition No Longer Reportable Per 10CFR50.55(e) ML20083M6651983-01-24024 January 1983 First Interim Deficiency Rept Re Residual Stress on Diesel Generator Engine Piston Skirt Castings.Initially Reported on 821215.Removal of Piston Skirt for Insp Deferred Until Restart of Design & Const.Also Reportable Per Part 21 ML20083M6711983-01-24024 January 1983 First Interim Deficiency Rept Re Potential Deterioration of Isoprene Gaskets on Standby Diesel Generator.Initially Reported on 821217.Transamerica Delaval,Inc Changed Matl for Drive Element to Neoprene.Also Reportable Per Part 21 ML20028C2481982-12-30030 December 1982 First Interim Deficiency Rept Re Insufficient Length of Starting Air Valve Assembly Capscrews.Initially Reported on 821201.Transamerica Delaval,Inc Changed Designed Length of Capscrew.Next Rept by 830415.Also Reportable Per Part 21 ML20070F0121982-12-13013 December 1982 Final Deficiency Rept Re Atlas QA Documentation on Auxiliary & Fuel Bldg Structural Steel.Initially Reported on 811113. QA Hold Placed on Suspect Items Until Further Testing Performed.Also Reportable Under Part 21 ML20028A4891982-11-0909 November 1982 Final Deficiency Rept Re Storage & Preventive Maint Program Deficiencies.Initially Reported on 821007.Pipe Caps Replaced,Piping Placed on Support,Tanks Moved to Inside Storage in Upright Position & Conditions & Program Reviewed ML20065R3701982-10-14014 October 1982 Interim Deficiency Rept Re Deferral of Const Activities. Initially Reported on 820623.Commitments Made in Rept,Audit Findings & Response to Violations Deferred Until Restart of Design & Const ML20027B8451982-09-20020 September 1982 First Interim Deficiency Rept Re QA Deficiencies on Allis- Chalmers Butterfly Valves.Initially Reported on 820823.Const Activities Deferred.Final Rept Will Be Submitted After Final Decision Re Completion or Cancellation of Project ML20063L3721982-09-0202 September 1982 First Interim Deficiency Rept Re Failure of Kerotest Valves to Meet Seismic Criteria.Initially Reported on 820804. Negotiations Underway W/Contractor for Return of Valves. Const Activities Deferred.Also Reportable Per Part 21 ML20055A0731982-07-0707 July 1982 First Interim Deficiency Rept Re Nonconformance in Intake Pumping Station Door & Hatch Design,Initially Reported 820604.Final Rept Will Not Be Issued Until Decision to Resume Facility Const Reached ML20055A0791982-07-0606 July 1982 First Interim Deficiency Rept Re Possible Installation of Bolt Anchors in Grant Areas,Initially Reported 820610. Investigation Postponed Until Const Resumed ML20054N0821982-07-0101 July 1982 Final Deficiency Rept Re Excessive Stress on Spray Pond Supply & Bypass Headers,Initially Reported on 820218. Piping Layout Revised & Drawings Revised/Reissued.Seismic Analysis Complete & Isometrics Issued ML20054J9111982-06-23023 June 1982 Part 21 Rept Re Potential Defect in Couplings Drive Element of Dsrv or Dsr Standby Diesel Generator.Affected Licensees Will Be Notified No Later than 820715 ML20054K1531982-06-23023 June 1982 Informs That Final Deficiency Repts for Listed Nonconformances Will Not Be Submitted Until Final Decision Is Made Re Const of Projects ML20054H6821982-06-18018 June 1982 Part 21 Rept Re Pneumatic Actuator Yoke Failure.List of Other Projects W/Similar Equipment Encl ML20054G1121982-06-11011 June 1982 Fourth Interim Deficiency Rept Re Link Rod assembly-Delaval Diesels.Due to Const Deferment Final Deficiency Rept Will Not Be Issued Pending Final Decision on Future of Projects. Also Reportable Per Part 21 ML20054E4111982-06-0101 June 1982 Fourth Interim Deficiency Rept Re Bethlehem Steel Co Galvanized A325 Bolts,Initially Reported on 811029.Const Activities Deferred Until Sufficient Info Indicates Whether Project Should Be Completed or Canceled ML20054E4081982-06-0101 June 1982 First Interim Deficiency Rept Re Split in Biological Shield Wall,Initially Reported on 820429.Investigation Postponed Until Const Activities for Project Resume.No Final Rept Will Be Submitted Until Decision Made Re Continuation of Const ML20053E1201982-05-28028 May 1982 Second Interim Deficiency Rept Re Check Valve Leak in Air Start Sys of Standby Diesel Generators,Initially Reported 820209.Evaluation by Vendor Underway.Also Reported Per Part 21 ML20052A6071982-04-19019 April 1982 Suppl to Final Deficiency Rept Re Standby Gas Treatment Sys Charcoal Absorber,Initially Reported 800508.Util Unable to Meet Corrective Action Completion Date in 811209 Final Rept Due to Deferral of Const.Also Reported Per Part 21 ML20052A5981982-04-12012 April 1982 Final Deficiency Rept Re Incorrect Orifice Size in RHR Discharge Line Indicated on Fabrication Spec,Initially Reported 820304.Typographical Error Corrected Before Hardware Mfg ML20054B1101982-04-0202 April 1982 Fifth Interim Deficiency Rept Re Review of Purchase Request Forms Initiated by Const,Initially Reported 810520.Util in Process of Analyzing Deficiencies.Next Rept Expected by 820715 ML20054C4691982-04-0101 April 1982 Part 21 Rept Re Hma Relays W/Contact Leads Not Fully Insulated,Initially Reported 810708.No Operating BWRs Utilize Subj Hma Relays.All Potential Problems Will Be Corrected Before Startup ML20054B4931982-04-0101 April 1982 Fifth Interim Deficiency Rept Re Pressure Drop in Svc Water Piping,Initially Reported on 801210.Deficiency Still Being Evaluated.Next Rept Will Be Provided by 820715 1993-12-09
[Table view] Category:TEXT-SAFETY REPORT
MONTHYEARML20058K3841993-12-0909 December 1993 Part 21 Rept Re Potential Defect in Component of Dsrv & Dsr Enterprise Standby DG Sys,Regarding Potential Problem W/ Subcover Assembled Atop Power Head 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 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 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 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 ML20153G1021986-02-19019 February 1986 Part 21 Rept Re Potential Defect in K-1 Relays of Dsr or Dsrv Standby Diesel Generators Mfg by Gould/Ite.Relays Have Incorrect Voltage Range.Dc Voltage Source or Voltage Regulator Circuitry Requires Mod 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 ML20084G3531984-04-19019 April 1984 Final Deficiency Rept Re Pacific Scientific Co Shock Arrestor Capstan Spring Tang.Initially Reported on 831013. Bellefonte Snubbers Will Be Replaced & Hartsville Snubbers Returned to Vendor for Repair.Springs Subj to Insp ML20087J6661984-03-0808 March 1984 Followup Part 21 Rept Re Nuclear Valve/Actuator Stroking Time Possibly Lengthened Beyond 15 When Using hydrocarbon-based Lubricants.Ltrs to Affected Utils Encl ML20081C0171984-03-0101 March 1984 First Interim Deficiency Rept Re Loose Drive Hubs on Overspeed Governor Drive Shaft on Transamerica Delaval,Inc Diesels.Initially Reported on 840203.Svc Info Memo Being Reviewed for Approval.Also Reportable Per Part 21 ML20079N5121984-01-23023 January 1984 Final Deficiency Rept Re Delaval Problem W/Starting Air Valve Assembly on Standby Diesels.Initially Reported on 821201.Capscrews Replaced Per Approved Procedure & Drawings Revised to Reflect Shorter Length ML20083H1921984-01-0505 January 1984 First Interim Deficiency Rept Re Transamerica Delaval,Inc QA Program.Initially Reported on 831206.Final Configuration for Control Cabinet Indicates Drawing Revs K,L & M Not Incorporated.Also Reportable Per Part 21 ML20083E1981983-12-20020 December 1983 First Interim Deficiency Rept Re Fuel Oil Line Rupture in Transamerica Delaval,Inc Generator.Initially Reported on 831121.Const Activities Deferred for Hartsville Units 1 & 2. Next Rept Expected by 840413.Also Reported Per Part 21 ML20078B3811983-09-0606 September 1983 Part 21 Rept Re Matrix Actuator Model 33122-SR 80.Mounting Bolts Loosened & Spring Return Cylinder Began to Separate from Ctr Body of Actuator.Investigation Being Conducted by Xomox Corp ML20077G6661983-07-27027 July 1983 Part 21 Rept Re Circuit Breakers Mfg Between Nov 1981 & Feb 1982.Breakers Should Be Inspected for Broken Puffer Linkage Studs.Stud Identified as Part Number 192247A.List of Circuit Breakers for Nuclear Plants Encl ML20024C1401983-06-30030 June 1983 Engineering Evaluation Rept:Investigation & Grouting of Leaks Associated W/Tendon Sheaths H32-009 & H32-011,Unit 2 Containment Bldg. ML20073S8641983-05-31031 May 1983 Details of Deferral Plans for Hartsville Nuclear Plant a ML20083L9751983-05-27027 May 1983 Part 21 Rept Re Failure of Circuit Breakers During Environ Testing.Test Results Indicate That Temp Sensitivity Problem May Be Generic to All Ite Imperial Corp thermal-magnetic Circuit Breakers Calibr for 40 C Svc ML20076H1601983-05-23023 May 1983 Pt 21 Rept Re Potential Defect in Transmitter Mfg by Rosemount,Inc Used in Control Sys Components Furnished to Listed Plants.All Components Involved Retrofitted W/New Circuit Boards.Matter Closed ML20074A2041983-04-26026 April 1983 Interim Deficiency Rept Re Misapplication of Ite Gould Circuit Breakers in post-LOCA Hydrogen Recombiners Supplied by Rockwell Intl.Initially Reported on 830328.Matter Under Investigation.Final Rept by 830808.Reported Per Part 21 ML20069K6811983-04-18018 April 1983 First Interim Deficiency Rept Re Pipe Support Spacing Utilizing Alternate Criteria.Initially Reported on 830317. Investigation Postponed Until Design & Const Resumed ML20073J8051983-04-12012 April 1983 Third Interim Deficiency Rept Re Nonconservative Calculation Method for General Const Spec G-32 Violations.Initially Reported on 820528.Design Std Being Revised to Clarify Use of Factors of Safety in DS-C6.1 ML20073P1281983-04-0808 April 1983 Second Interim Deficiency Rept Re Problem W/Delaval Starting Air Valve Assembly on Standby Diesels.Initially Reported on 821201.Util Continuing to Attempt to Acquire Necessary Info from Transamerica Delaval,Inc.Also Reported Per Part 21 ML20079E9911983-03-31031 March 1983 Caseload Forecast ML20072Q9571983-03-28028 March 1983 First Interim Deficiency Rept Re Failure of Util Div of Engineering Design to Provide Bolt Tightening Requirements to Div of Const.Initially Reported on 830228.Const Deferred. Rept to Be Submitted When Const Decision Made ML20072R3291983-03-28028 March 1983 Interim Deficiency Rept 1 Re CF Braun Documentation Control Program Failure to Monitor Closeout of Final Design Change Control Documents.Initially Reported on 830302.Final Rept Due Upon Commencement of Const.Also Reportable Per Part 21 ML20074A2221983-03-11011 March 1983 Part 21 Rept Re Failure of post-LOCA Hydrogen Recombiner Component During IEEE-323 Qualification Program.Circuit Breaker Not Properly Selected for Specific Application.Plant Operators Notified of Deviation ML20028G0821983-01-31031 January 1983 Final Deficiency Rept Re Itt Grinnell Failure to Use Proper Testing Methods.Initially Reported on 810304.Spool Pieces re-examined Per ASME Section III,1974 Edition,Winter Addenda 1975 Code.Condition No Longer Reportable Per 10CFR50.55(e) ML20083M6651983-01-24024 January 1983 First Interim Deficiency Rept Re Residual Stress on Diesel Generator Engine Piston Skirt Castings.Initially Reported on 821215.Removal of Piston Skirt for Insp Deferred Until Restart of Design & Const.Also Reportable Per Part 21 ML20083M6711983-01-24024 January 1983 First Interim Deficiency Rept Re Potential Deterioration of Isoprene Gaskets on Standby Diesel Generator.Initially Reported on 821217.Transamerica Delaval,Inc Changed Matl for Drive Element to Neoprene.Also Reportable Per Part 21 ML20028C2481982-12-30030 December 1982 First Interim Deficiency Rept Re Insufficient Length of Starting Air Valve Assembly Capscrews.Initially Reported on 821201.Transamerica Delaval,Inc Changed Designed Length of Capscrew.Next Rept by 830415.Also Reportable Per Part 21 ML20070F0121982-12-13013 December 1982 Final Deficiency Rept Re Atlas QA Documentation on Auxiliary & Fuel Bldg Structural Steel.Initially Reported on 811113. QA Hold Placed on Suspect Items Until Further Testing Performed.Also Reportable Under Part 21 ML20028A4891982-11-0909 November 1982 Final Deficiency Rept Re Storage & Preventive Maint Program Deficiencies.Initially Reported on 821007.Pipe Caps Replaced,Piping Placed on Support,Tanks Moved to Inside Storage in Upright Position & Conditions & Program Reviewed ML20069Q3701982-10-31031 October 1982 Socioeconomic Monitoring & Mitigation Rept ML20069Q3771982-10-31031 October 1982 Const Employee Monitoring Errata Rept ML20065R3701982-10-14014 October 1982 Interim Deficiency Rept Re Deferral of Const Activities. Initially Reported on 820623.Commitments Made in Rept,Audit Findings & Response to Violations Deferred Until Restart of Design & Const ML20027B8451982-09-20020 September 1982 First Interim Deficiency Rept Re QA Deficiencies on Allis- Chalmers Butterfly Valves.Initially Reported on 820823.Const Activities Deferred.Final Rept Will Be Submitted After Final Decision Re Completion or Cancellation of Project ML20069D5241982-09-10010 September 1982 Socioeconomic Monitoring & Mitigating Rept,Sept 1981 ML20063L3721982-09-0202 September 1982 First Interim Deficiency Rept Re Failure of Kerotest Valves to Meet Seismic Criteria.Initially Reported on 820804. Negotiations Underway W/Contractor for Return of Valves. Const Activities Deferred.Also Reportable Per Part 21 ML20055A0731982-07-0707 July 1982 First Interim Deficiency Rept Re Nonconformance in Intake Pumping Station Door & Hatch Design,Initially Reported 820604.Final Rept Will Not Be Issued Until Decision to Resume Facility Const Reached ML20055A0791982-07-0606 July 1982 First Interim Deficiency Rept Re Possible Installation of Bolt Anchors in Grant Areas,Initially Reported 820610. Investigation Postponed Until Const Resumed ML20054N0821982-07-0101 July 1982 Final Deficiency Rept Re Excessive Stress on Spray Pond Supply & Bypass Headers,Initially Reported on 820218. Piping Layout Revised & Drawings Revised/Reissued.Seismic Analysis Complete & Isometrics Issued ML20054J9111982-06-23023 June 1982 Part 21 Rept Re Potential Defect in Couplings Drive Element of Dsrv or Dsr Standby Diesel Generator.Affected Licensees Will Be Notified No Later than 820715 ML20054K1531982-06-23023 June 1982 Informs That Final Deficiency Repts for Listed Nonconformances Will Not Be Submitted Until Final Decision Is Made Re Const of Projects ML20054H6821982-06-18018 June 1982 Part 21 Rept Re Pneumatic Actuator Yoke Failure.List of Other Projects W/Similar Equipment Encl ML20054G1121982-06-11011 June 1982 Fourth Interim Deficiency Rept Re Link Rod assembly-Delaval Diesels.Due to Const Deferment Final Deficiency Rept Will Not Be Issued Pending Final Decision on Future of Projects. Also Reportable Per Part 21 ML20054E4111982-06-0101 June 1982 Fourth Interim Deficiency Rept Re Bethlehem Steel Co Galvanized A325 Bolts,Initially Reported on 811029.Const Activities Deferred Until Sufficient Info Indicates Whether Project Should Be Completed or Canceled ML20054E4081982-06-0101 June 1982 First Interim Deficiency Rept Re Split in Biological Shield Wall,Initially Reported on 820429.Investigation Postponed Until Const Activities for Project Resume.No Final Rept Will Be Submitted Until Decision Made Re Continuation of Const 1993-12-09
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. o TENNESSEE VALLEY AUTHORITY I CHATTANOOGA. TENNESSEE 37401 400 'testnut Street Tower II l
May 4, 1981 ,[+% c HrRD-50-518/81-07 8 1 1 1981 s .
Mr. James P. O'Reilly, Director off'.ce of Inspection and Enforcement h InD
/g U.S. Nuclear Regulatory Ccmnission 4.,
Region II - Suite 3100 sul
101 Marietta Street Atlanta, Georgia 30303
Dear Mr. O'Beilly:
HARISVILLE PKX2 EAR PIRTP UNIT Al - REPORIABLE DmutNCY - UNACCEPTABLE WEIES DOCGemD AS ACCEPIABLE - EfRD-50-518/B1-07
'Ihe subject deficiency was initially reported to NIC-OIE, Region II Inspector, R. W. Wright on February 6,1981, as NCR HNPA-125. 'Ihe first interim report was sutmitted cn March 10, 1981. In ccanpliance with paragraph 50.55(e) of 10 CFR Part 50, we are enclosing the final report on the subject deficiency.
If you have any questions, please . call Jim Dcmer at FIS 857-2014.
Very truly yours, TENNESSEE VALLEY ADIECRITY L. M. Mills, Manager Nuclear Regulation and Safety i Ehclosure oca Mr. Victor Stello, Director (Enclosure)!
Office of Inspection and Enforcement
- i U.S. Nuclear Regulatory Ccanission l Warhington, DC 20555 l
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HARISVILLE tKELEAR PLANP Al-UNACCEPIABLE WEWS DOCUMENTED AS ACCEPIABLE HTRD-50-518/81-07 10CFR50.55(e) REPORP NO. 2 (FINAL)
Description of Deficiency Unacceptable welds which required visual inspection have been documented as inspected ard accepted. Unacceptable welds were attributed to deficiencies such as arc strikes, overlaps, undercuts, parosity, slag inclusions, low grinds, insufficient fillets, excessive reinforcement, spatter, and emitted welds. h is condition was apparently caused by inspectors neglecting to follow acceptance criteria in isolated cases. Inspector negligence was caused by the inspectors striving to accmplish as nuch work as possible which resulted in overlooking marginal and/or unacceptable conditions.
Safety Imolications Failure of a system or feature due to undetected unacceptable welds could result in degradation of systems required for the safe operation or shutdown of the plant. W erefore, this condition could have jeopardized the safe operation of the plant had it remained uncorrected. .
Corrective Action Welds identified as being unacceptable by this investigation have been documented by CCIR's and will be corrected to bring them into cmpliance with "
requirements. Potentially unacceptable welds which are inaccessi.ble will be accepted as is based on final acceptance of pressure testing on pressure-containing welds and on the overall improbability of an occurrence of a defect that would cause a failure.
Reinspection of safety-related welds inspected by a total of 45 inspectors was performed. We reinspection was performed I '. incrementis of 20 reinspections for each inspector. Inspectors who had accepted more than two unacceptable welds or weldments in the initial sampling of 20 were identified, and an additional 20 welds or weldments were reinspected. Inspectors identified as having an aggregate reject rate of more than 10 percent for the 40 reinspections were identified and all identifiable, accessible safety-related welds or weldments inspected by them were reinspected.
We cmplete reinspection program was not conducted for sme inspectors due to their status as lead inspectors or due to their brief duration of employment.
Lead inspectors seldm perform inspections due to their supervisory responsiblities taking precedence over inspection duties. Sme welds which they had inspected were reexamined, but 20 accessible welds could not be identified for reinspection. Other inspectors did not have 20 welds which they had inspected which were available to reinspect.
_._ _.m_ ._ _. _ . ._ _ _ . . _ . . ._
. o During the investigation, 1,641 welds or weldments were reinspected. An additional 914 welds were identified as inaccessible, i.e., embedded, covered with leak chase, buried, etc. As a result of the reinspection, 85 rejectable welds were identified; this is an overall rejection rate of 5.2 percent.
Rese rejectable welds were attributed to 15 inspectors who had accepted at least one rejectable weld. Seven of these inspectors had accepted in excess of 10 percent unacceptable welds during the first 40 reinspections. Only one inspector was identified as accepting more than 10 percent rejectable welds for the overall reinspection.
Inspectors still employed by TVA identified as having an aggregate reject rate of 10 percent or less in the first 40 welds but having at least one reject were counselled and shown his/her incorrect work by supervisory personnel. An informal record of the counselling session was prepared and placed in the unit files.
Inspectors still in the employ of TVA and identified as having an aggregate reject of greater than 10 percent in the first 40 welds were removed frm the inspection force and were required to attend 40 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br /> of retraining and were tested for recertification. In addition, each was coenselled, shown those -
welds which had been incorrectly accepted, and a formal written recrimand placed in his/her personal history record.
Welders identified in this reinspection investigation will be required to "
repeat their attendance of the CA orientation program and the classrocm portion of the welder certification training module. Additionally, they will be individually counselled by their specific craft manager or his representative. Evidence of this retraining and counselling shall be documented.
To avoid further occurrences, responsible lead inspectors will, on a surveillance basis, evaluate routine welds accepted by inspectors under their supervision to verify the ability of the inspectors and the condition of the accepted welds. Inspectors who accept unacceptable work will be retrained, counsalled, disciplined, and/or removed frcm their psition as warranted by investigation of the particular incident. Welders identified as violating procedural requirements will be counselled, retrained, disciplined, and/or removed frca their position as warranted by investigation of the particular incident.
Evaluation of the unacceptable welds, dispositioning, and appropriate corrective action will be cceplete by July 1,1981. Identification of the involved inspectors was ccepleted by March 16, 1981. ReprimaMs have been issued aM retraining is in progress with ccepletion scheduled by May 1, 1981. Welders have been identified and appropriate actions will be completed by July 1, 1981.
his condition is uni .:e 7 to the Hartsville site and no other nuclear plants are involved.
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