ML18150A689: Difference between revisions
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{{#Wiki_filter:800.895.4999 | {{#Wiki_filter:800.895.4999 l!ESPONSll!lE BY NATURE xcelenergy.com L-Pl-18-034 May 30, 2018 10 CFR 21.21(a)(2) | ||
Pursuant to 10 CFR 21.21 (a)(2) Northern States Power Company, a Minnesota corporation, doing business as Xcel Energy (hereafter "NSPM"), submits this interim report. On April 1, 2018, during the monthly surveillance testing of the Unit 2 diesel generator 05, a leak was identified on a lube oil pressure switch that provides an alarm only function. | U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-001 Prairie Island Nuclear Generating Plant Unit 2 Docket 50-306 Renewed License No. DPR-60 Interim Report of a Deviation or Failure to Comply Pursuant to 10 CFR 21.21 (a)(2) Northern States Power Company, a Minnesota corporation, doing business as Xcel Energy (hereafter "NSPM"), submits this interim report. | ||
The failure of this pressure switch did not prevent the diesel from performing its safety function. | On April 1, 2018, during the monthly surveillance testing of the Unit 2 diesel generator 05, a leak was identified on a lube oil pressure switch that provides an alarm only function. The failure of this pressure switch did not prevent the diesel from performing its safety function. However, there are several additional switches of the same or similar model installed on the Unit 2 diesels which, if failed in aggregate, could potentially impact the performance of the safety function. | ||
However, there are several additional switches of the same or similar model installed on the Unit 2 diesels which, if failed in aggregate, could potentially impact the performance of the safety function. | The pressure switch that failed, manufactured by AMOT part number 4140CR1 E32AA0, was purchased from Paragon (formerly ATC) under their 10 CFR Appendix B program. The part was sent out for failure analysis and the station is working with the vendor to complete the necessary evaluation. It is anticipated that this evaluation will be completed by the end of July 2018. | ||
The pressure switch that failed, manufactured by AMOT part number 4140CR1 E32AA0, was purchased from Paragon (formerly ATC) under their 10 CFR Appendix B program. The part was sent out for failure analysis and the station is working with the vendor to complete the necessary evaluation. | If there are any questions or if any additional information is needed, please contact Jeff Kivi, Site Regulatory Affairs Manager, at 651-267-7309. | ||
It is anticipated that this evaluation will be completed by the end of July 2018. If there are any questions or if any additional information is needed, please contact Jeff Kivi, Site Regulatory Affairs Manager, at 651-267-7309. | Summary of Commitments This let-ter contain~o new co_mmitments and no revisions to existing commitments. | ||
Summary of Commitments This let-ter contain~o new co_mmitments and no revisions to existing commitments. | ,7 <!} | ||
,7 <!} ,//~ :J -;cott Sharp r Site Vice President, Prairie Island Nuclear Generating Plant Northern States Power Company -Minnesota Attachment cc: Regional Administrator, Region Ill, USNRC Project Manager, Prairie Island Nuclear Generating Plant, USNRC Resident Inspector, Prairie Island Nuclear Generating Plant, USNRC}} | ,//~ :J | ||
-;cott Sharp r Site Vice President, Prairie Island Nuclear Generating Plant Northern States Power Company - Minnesota Attachment cc: Regional Administrator, Region Ill, USNRC Project Manager, Prairie Island Nuclear Generating Plant, USNRC Resident Inspector, Prairie Island Nuclear Generating Plant, USNRC}} | |||
Latest revision as of 01:37, 21 October 2019
| ML18150A689 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 05/30/2018 |
| From: | Sharp S Northern States Power Company, Minnesota, Xcel Energy |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| L-Pl-18-034 | |
| Download: ML18150A689 (1) | |
Text
800.895.4999 l!ESPONSll!lE BY NATURE xcelenergy.com L-Pl-18-034 May 30, 2018 10 CFR 21.21(a)(2)
U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-001 Prairie Island Nuclear Generating Plant Unit 2 Docket 50-306 Renewed License No. DPR-60 Interim Report of a Deviation or Failure to Comply Pursuant to 10 CFR 21.21 (a)(2) Northern States Power Company, a Minnesota corporation, doing business as Xcel Energy (hereafter "NSPM"), submits this interim report.
On April 1, 2018, during the monthly surveillance testing of the Unit 2 diesel generator 05, a leak was identified on a lube oil pressure switch that provides an alarm only function. The failure of this pressure switch did not prevent the diesel from performing its safety function. However, there are several additional switches of the same or similar model installed on the Unit 2 diesels which, if failed in aggregate, could potentially impact the performance of the safety function.
The pressure switch that failed, manufactured by AMOT part number 4140CR1 E32AA0, was purchased from Paragon (formerly ATC) under their 10 CFR Appendix B program. The part was sent out for failure analysis and the station is working with the vendor to complete the necessary evaluation. It is anticipated that this evaluation will be completed by the end of July 2018.
If there are any questions or if any additional information is needed, please contact Jeff Kivi, Site Regulatory Affairs Manager, at 651-267-7309.
Summary of Commitments This let-ter contain~o new co_mmitments and no revisions to existing commitments.
,7 <!}
,//~ :J
-;cott Sharp r Site Vice President, Prairie Island Nuclear Generating Plant Northern States Power Company - Minnesota Attachment cc: Regional Administrator, Region Ill, USNRC Project Manager, Prairie Island Nuclear Generating Plant, USNRC Resident Inspector, Prairie Island Nuclear Generating Plant, USNRC