ML15077A379
| ML15077A379 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 03/13/2015 |
| From: | Butters A Weir Valves & Controls USA |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| 50888 | |
| Download: ML15077A379 (5) | |
Text
0311312015U.S. Nuclear Regulatory Commission Operations Center Event ReportPa-ue I03205USNulaReuarv Cmiso Oeain Cete Een R- orn-a-Part 21 (PAR) Event# 50888Rep Org: WEIR VALVES AND CONTROLS USA INC. Notification Date I Time: 03/13/2015 15:48 (EDT)Supplier: WEIR VALVES AND CONTROLS USA INC. Event Date I Time: 03/13/2015 (EDT)Last Modification: 03/13/2015Region: 1 Docket #:City: IPSWITCH Agreement State: YesCounty: License #:State: MANRC Notified by: ARTHUR BUTTERS Notifications: STEVE ORTH R3DOHQ Ops Officer: DANIEL MILLS PART 21/50.55 REACTORS EMAILEmergency Class: NON EMERGENCY10 CFR Section:21.21(d)(3)(i) DEFECTS AND NONCOMPLIANCEIMPROPER WELD USED ON GATE VALVE COVERThe following was received from the licensee via email:"This notification is being submitted pursuant to the guidelines of 10 CFR Part 21 to report that, during themanufacturing of a replacement cover for a 24 inch gate valve on the reactor recirc line at Exelon LaSalle, WeirValves and Controls used a weld that was not compliant to ASME III Subsection NB requirements."During review of the weld at site, the question was raised based on site procedures required a 2:1 profile inaccordance to EPRI guidelines. During review of the documentation to determine if the 2:1 profile was required inthis case, Weir Valves and Controls determined that improper weld call out was used on the design prints. Theweld was corrected at site to meet the both ASME III Subsection NB requirements and EPRI guidelines."Weir Valves and Controls has performed an extent condition review and has concluded that no other undersizedwelds were made and delivered to any other operating sites."The root-cause of the issue was the improper call-out of the weld by design engineering."Weir Valves and Controls is performing corrective actions to ensure future re-occurrences cannot occur in designengineering."**** * ****** ***************** * * ************* ** ******* ******* ****** *** *****`7***
Weir Valves & Controls USA Inc. ExcellentEngineeringSolutions29 Old Right Road Tel: +1 978 744 5690Ipswich, MA 01938-1119 Fax: +1 978 741 3626USA www.weirpowerindustrial.comMarch 13, 2015NRC's Document Control DeskU.S. Nuclear Regulatory CommissionWashington, DC 20555-0001RE: Exelon LaSalle Cover Modification for 2B33-F067B (IR #2443746)
Dear Sir or Madam;This notification is being submitted pursuant to the guidelines of 10 CFR Part 21 to report that,
during the manufacturing of a replacement cover for a 24" Gate valve on the reactor recirc line atExelon LaSalle, Weir Valves and Controls used a weld that was not compliant to ASME IIISubsection NB requirements.During review of the weld at site, the question was raised based on site procedures required a2:1 profile in accordance to EPRI guidelines. During review of the documentation to determine ifthe 2:1 profile was required in this case, Weir Valves and Controls determined that improperweld call out was used on the design prints. The weld was corrected at site to meet the bothASME III Subsection NB requirements and EPRI guidelines.Weir Valves and Controls has performed an extent condition review and has concluded that noother undersized welds were made and delivered to any other operating sites.The root-cause of the issue was the improper call-out of the weld by design engineering.Weir Valves and Controls is performing corrective actions to ensure future re-occurrencescannot occur in design engineering.Please feel free to contact me with any questions or comments.Regards,Afthur C. ButtersDirector of Engineering; Nuclear iD m 10 CFR PART 21 EVALUATIONEvaluation of Deviation or Potential FailureComplyI C. rjZC1-ý 51A Identify the source of the information on the deviation or potential failure to comply:Weir drawing 42115-807 calls for a 1/16" (0.06") fillet weld attaching Item I and Item 2.16 Describe the deviation or potential failure to comply that has been discovered:Drawing 42115-807 is designed to ASME Sect III, Class 1 1971 edition with no addenda. Fig NB-4427.1 gives theminimum weld thickness requirements for this particular weld. The minimum required thickness is 0.274"[lIC If the issue concerns 0 a potential failure to comply, go to Section ID; El a deviation, geto.Section 1E1D Does the potential failure to comply represent a violation of the Atomic Energy Act of 1954, as amended, or anyapplicable rule, regulation, order, or license of the NRC, including technical specification limits?If Yes or Uncertain, check Z and complete Section 1 E.If No, check [] and complete Section 1 F.1 E(1) Does the deviation affect the functionality of items or services provided by Weir Valves & Controls USA?If Yes or Uncertain, check Z and complete Section 1 E(2).If No, check Dl and complete Section 1 F and Explain:IE(2) Does the deviation involve a basic component?If Yes or Uncertain, check Z and complete Section 1 E(3).If No, check El and complete Section 1F and Explain:1E(3) Has the basic component been delivered to a customer?If Yes or Uncertain, check 0 and complete Section 1 E(4).If No, check El and complete Section 1 F and Explain:IE(4) Does the basic component deviate from the requirements of the customer's procurement document?If Yes or Uncertain, check Z and complete Section 1G.If No, check El and complete Section 1F and Explain:IF The deviation or potential failure to comply is not reportable in accordance to 10CFR21.Originator (signature) Originator (print) DateDesignated Responsible Officer (signature) Designated Responsible Officer (print) DateHave local Director, Quality Assurance retain this form on file for 5 yearsIG The deviation or potential failure to comply warrants further evaluation in accordance with 10CFR21.Justin Meier 1/29/156-Zriginator (signature) Originator (print) DateForward this form with relevant information to the Designated Responsible Officer.IH I have reviewed Part 1 and determined that the deviation or potential failure to comply should be evaluatedbased on-the basis below for reportability in accordance with 10CFR21. (Start of 60-day clock)Initial Due Date:Designated Responsible Officer (signature) Date 3171/1Within the 60-day clock started above, I will evaluate the deviation or potential failure to comply discovered inPart 1 to determine reportability in accordance with 10CFR21.ezgnizant Technical Engineer (signature) DateWVC_ OCFREVAL 041213 10 CFR PART 21 EVALUATION DOCUMENT PAGEEvaluation of Deviation or Potential Failure toComply 10CFR012815.docx 2 of 42A Identification of the company supplying the basic component or activity which contains a deviation or potentialfailure to comply:Weir Valves & Controls supplied the basic component that failed to comply with the Subsection NB weld requirements ofASME Sect. III2B 0 Confirm the information in Part 1. Note any discrepancies that need to be addressed:There are no discrepencies to be addressed.2C Provide A) Technical Justificaiton of Unit Acceptability; or B) Proposed Technical SolutionB) Proposed Technical SolutionThe issue was brought to the attention of Weir Valves & Controls during receipt inspection of the basic component in theplant due to the weld not in conformance with Exelon Internal Procedures CC-AA-501-1008 Revision 7 & CC-AA-501-1025 Revision 5 guidelines to have a 2:1 profiles for socket welds in high vibration service. Upon investigation, WeirValves & Controls determined the weld did not comply with the requirements of ASME Sect. III Subsection NB socketwelds.The decision was made for the plant to do a weld repair under the sites ASME Sect XI Program. The repair wasperformed under Work Order 1747359-32 (as identified in IR2443746). The repair brings the non-compliant weld back intocompliance of ASME Sect III Subsection NB weld requirements.Weir Valves & Controls has revised drawing 42115-807 to reflect the correct weld size.It appears that this would create a potential safety hazard depending on plant conditions. Weir Valves & Controls tocontinue the evaluation with input from the plant, and review the issue with other sites.91 This issue is reportable pursuant to 10CFR21.-4111 El This issue is not reportable pursuant to 1OCFR21... A decision-on reportability -cannotbe -made-based on-the available information.W-. 2/27/15Cotizant Technical Engineer (signature) DateReview with the DRO within 5 days of completion42/27/15Designated Responsible Officer (signature) DateThe DRO will finalize the reporting requirements and submit the reports to the NRC andany affected facilities within 30 days.WVC_10CFREVAL 030412 3A Basis for decision:After review with the site, the undersized weld is reportable under 10CFR21. Due to the issue being brought up at plantinspection, and the weld presenting a failure to comply with ASME Section III Subsection NB.3B Number and location of all affected components:In extent condition for both valve and service modification orders, Weir identified all orders with socket welds that neededto be evaluated to ensure the attached welds meet the requirements of the applicable code year. Based on thisthourough review, only the valve bonnet that was shipped to LaSalle and started this evaluated (WVC CO 0030000297)was identified. As part of a modification, this is only instance that this particular design is used. The weld was repairedprior to being installed at the plant to meet the requirements of ASME Section II1.3C I have evaluated the information and technical assessment developed and2 This issue is reportable pursuant to 10CFR21.El This issue is not reportable pursuant to 1OCFR21.El A decision on reportability cannot be made based on the available information.Based on this determination, I will proceed with all proper notifications within the allowable timeframes.DesignatedResponsibeOfficersignature)Date3/12/15Designated Responsible Officer (signature) DateWVC_10CFREVAL 030412