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Category:Deficiency Report (per 10CFR50.55e and Part 21)
MONTHYEARML22087A0092022-03-0909 March 2022 Ultra Energy, Report Under 10CFR21 of Noncompliance for N7030 Transmitter ML21181A2202021-06-29029 June 2021 Part 21 Written Notification - P21-03302021 Rev. 2 - Failures of Size 1 and 2 Freedom Series Full Voltage Reversing Starters ML21126A1722021-04-29029 April 2021 Paragon Energy Solutions Failures of Size 1 and 2 Freedom Series Full Voltage Reversing Starters ML19347A4262019-12-10010 December 2019 General Atomics - Reportable Occurrence Under 10CFR21: Reported Failure in Analog High Range Radiation Monitor (RP-2C) ML19248B7662019-08-0808 August 2019 Aaf Flanders - Event Number 5346, Reported at 2048 Est on 06/20/18 Re Unapproved Design Change in High Efficiency Particulate Air Filter ML18344A0542018-12-0606 December 2018 Framatome, Inc., 10 CFR Part 21 Notification of Existence of a Defect Involving O-ring Supplied in Chesterton Pump Seal Cartridge ML18313A0332018-10-31031 October 2018 Aaf International, Letter Regarding Unapproved Design Change in a High Efficiency Particulate Air Filter, Reported at 2048 Est on 06/20/18 ML18274A0162018-09-14014 September 2018 Aaf Flanders - Unapproved Design Change in a High Efficiency Particulate Air Filter ML18219A0082018-08-0606 August 2018 Follow-up to Interim Report of a Deviation or Failure to Comply ML18173A2742018-06-20020 June 2018 Aaf Flanders - Part 21 Report Re Unapproved Design Change in a High Efficiency Particulate Air Filter L-PI-17-037, Initial Notification of Failure to Comply or Existence of a Defect2017-09-14014 September 2017 Initial Notification of Failure to Comply or Existence of a Defect ML17194A8252017-07-11011 July 2017 Part 21 Report Re Wedge Pin Failure in Anchor Darling Motor Operated Double Disc Gate Valves with Threaded Stem to Upper Wedge Connections ML17081A4532017-03-20020 March 2017 Part 21 - Plastic Jar Dedication Sampling ML17026A4142017-01-20020 January 2017 C&D Technologies, Inc. - Part 21 - Plastic Jar Dedication Sampling L-PI-16-089, Interim Report of a Deviation or Failure to Comply2016-11-0404 November 2016 Interim Report of a Deviation or Failure to Comply ML16321A4512016-10-21021 October 2016 Part 21 Reporting of Defects and Noncompliance ML16243A4722016-08-25025 August 2016 Part 21 Reporting of Defects and Noncompliance ML16188A3782016-06-24024 June 2016 Part 21 - Deviation for Class 1E Solid State Relays (47H and 60Q) ML16162A6822016-06-0606 June 2016 Part 21 Notification - Deviation of K-Line Circuit Breaker Secondary Trip Latch ML16162A6812016-06-0606 June 2016 Part 21 - Notification of Deviation of K-Line Circuit Breaker Secondary Trip Latch ML16139A8342016-05-10010 May 2016 Electroswitch - Transmittal of 10CFR Part 21 Reporting of Defects and Noncompliance Regarding Vendor Inspection of Electroswitch Corporation Docket No. 99900833 L-PI-15-074, Part 21 Notification of Failure to Comply or Existence of a Defect Affecting a Basic Component2015-09-0303 September 2015 Part 21 Notification of Failure to Comply or Existence of a Defect Affecting a Basic Component L-PI-15-069, Notification of Part 21 Report - Abb 50H Instantaneous Over Current Protection Relay Failure2015-08-0606 August 2015 Notification of Part 21 Report - Abb 50H Instantaneous Over Current Protection Relay Failure ML15103A2442015-04-0606 April 2015 Part 21 Report - Deviation of Hk Circuit Breaker Close Latch Spring ML15089A4372015-03-20020 March 2015 Part 21 - Dual Alarm Modules That May Contain Faulty Diodes in Single State Relays ML15022A6502015-01-20020 January 2015 Letter from Steven R. 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[Table view] Category:Letter
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Cycle 33. Revision 0 ML23285A3062023-10-12012 October 2023 Implementation of the Fleet Standard Emergency Plan for the Monticello Nuclear Generating Plant and the Prairie Island Nuclear Generating Plant ML23270B9022023-09-29029 September 2023 Review of Reactor Vessel Material Surveillance Program Capsule N Technical Report L-PI-23-025, License Amendment Request to Revise Technical Specification 3.8.1, Surveillance Requirement 3.8.1.2, Note 32023-09-28028 September 2023 License Amendment Request to Revise Technical Specification 3.8.1, Surveillance Requirement 3.8.1.2, Note 3 ML23265A2532023-09-26026 September 2023 Review of Reactor Vessel Material Surveillance Program Capsule N Technical Report ML23262B0372023-09-19019 September 2023 Response to NRC Request for Additional Information Regarding the 2023 Monticello and Prairie Island Plant Decommissioning Funding Status Reports ML23256A1682023-09-13013 September 2023 Independent Spent Fuel Storage Installation and Monticello Nuclear Generating Plant - Voluntary Security Clearance Program 2023 Insider Threat Program Self-Inspection L-PI-23-023, Baffle Former Bolts Alternate Aging Management Strategy2023-09-11011 September 2023 Baffle Former Bolts Alternate Aging Management Strategy IR 05000282/20230052023-08-30030 August 2023 Updated Inspected Plan for Prairie Island Nuclear Generating Plant Report 05000282/2023005 and 05000306/2023005 IR 05000282/20230102023-08-17017 August 2023 NRC Inspection Report 05000282/2023010 and 05000306/2023010 ML23222A0122023-08-10010 August 2023 Independent Spent Fuel Storage Installation and Monticello Nuclear Generating Plant - Changes in Foreign Ownership, Control or Influence IR 05000282/20230022023-08-0303 August 2023 Integrated Inspection Report 05000282/2023002 and 05000306/2023002 ML23214A2032023-08-0202 August 2023 Request for Information for an NRC Quadrennial Comprehensive Engineering Team Inspection: Inspection Report 05000282/2024010; 05000306/2024010 ML23206A2342023-07-25025 July 2023 Independent Spent Fuel Storage Installation, and Monticello Nuclear Generating Plant, Changes in Foreign Ownership, Control or Influence ML23202A0032023-07-21021 July 2023 Independent Spent Fuel and Independent Spent Fuel Storage Installation, Monticello Nuclear Generating Plant, Submittal of Quality Assurance Topical Report (NSPM-1) ML23199A0922023-07-18018 July 2023 Notification of NRC Baseline Inspection and Request for Information; Inspection Report 05000306/2023004 ML23195A1732023-07-14014 July 2023 Revision of Standard Practice Procedures Plan L-PI-23-018, License Amendment Request to Revise ISFSI Technical Specification 4.4 to Allow Use of a Code Alternative to ASME Code, NB-5130, Examination of Weld Edge Preparation Surfaces, for the TN-40HT2023-07-14014 July 2023 License Amendment Request to Revise ISFSI Technical Specification 4.4 to Allow Use of a Code Alternative to ASME Code, NB-5130, Examination of Weld Edge Preparation Surfaces, for the TN-40HT ML23181A0192023-06-30030 June 2023 Independent Spent Fuel Storage Installation, Revision to Correspondence Service List for Northern States Power - Minnesota ML23178A2422023-06-28028 June 2023 Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch III L-PI-23-006, License Amendment Request to Revise Technical Specification 3.7.8 Required Actions2023-06-22022 June 2023 License Amendment Request to Revise Technical Specification 3.7.8 Required Actions L-PI-23-016, 2022 10 CFR 50.46 LOCA Annual Report2023-06-14014 June 2023 2022 10 CFR 50.46 LOCA Annual Report IR 05000282/20234202023-06-0101 June 2023 Security Baseline Inspection Report 05000282/2023420 and 05000306/2023420 ML23150A1722023-05-30030 May 2023 Preparation and Scheduling of Operator Licensing Examinations 2024-02-01
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December 6, 2018 NRC:18:043 U.S. Nuclear Regulatory Commission Document Control Desk 11555 Rockville Pike Rockville, MD 20852 10 CFR Part 21 Notification of Existence of a Defect This letter provides notification of a reportable defect in accordance with 10 CFR Part 21. This defect was reported to the NRC Operations Center by facsimile at 3:57 p.m. EST on December 6, 2018.
The defect concerns the failure of an improperly installed 0-ring supplied in a Chesterton pump Seal Cartridge used for a RHR Pump at the Prairie Island Nuclear Generating Plant (PINGP).
Actions already taken to address the defect are provided in the attachment to this letter.
If you have any questions related to this information, please contact Ms. Gayle Elliott, Deputy Director, Licensing and Regulatory Affairs by telephone at (434) 832-3347, or by e-mail at Gayle. Elliott@framatome.com.
cc: J. G. Rowley Project 728 Attachments:
1 Attachment A- Notification of 10 CFR 21 Defect 2 Attachment B - E-mail from Framatome Inc. to PINGP requesting affected Chesterton Pump Seal Cartridges to be returned for testing/refurbishment as needed.
'3315 Old Forest Road Lynchburg, VA 2450f Tel: (434) 832-3000 www.framatome.~om
Document Control Desk NRC:18:043 December 6, 2018 Page A-1 Attachment A Notice of 10 CFR 21 Defect
Subject:
Notification of 10 CFR 21 Defect Name and Address of Individual Informing the Commission:
Gayle Elliott Deputy Director, Licensing & Regulatory Affairs Framatome Inc.
3315 Old Forest Road Lynchburg, Va. 24501
Title:
Cut internal 0-ring supplied in a Chesterton Pump Seal Cartridge used In Prairie Island RHR Pump discovered during post maintenance testing following installation.
Identification of Basic Activity:
Chesterton Pump Seal Cartridge,
- Manufacturer -A.W. Chesterton Co.
- Manufacturer P/N --SP-C640776
- Manufacturer Model # - 180/0SWB~20 SA CB/TS S AFLAS
- Part Description - Mechanical Seal, 2-1/2 inch, single cartridge, heavy duty, AFLAS 0-rings Basic Activity Supplied By:
Framatome Inc.
Nature of Defect:
As reported to Framatome Inc. by Prairie Island Nuclear Generating Plant (PINGP):
During 1 R31 outage maintenance (fall 2018), the mechanical shaft seal on the 11 RHR Pump was replaced. During subsequent post maintenance testing, it was found that there was significant seal leakage on the pump.
The pump was re-isolated so that the new seal package could be replaced. It was discovered that the adapter 0-ring internal to the mechanical seal had been sheared in two places, leaving a -1" section of 0-ring material completely separated from the remainder. This 0-ring is an internal subcomponent of the mechanical seal package, which is received and installed as a completed
. assembly.
The defective mechanical seal would have led to a condition where the 11 RHR Pump would have become unable to perform its intended safety functions. The condition of this seal would have created a loss of safety function for the low
Document Control Desk NRC:18:043 December 6, 2018 Page A-2 pressure injection and recirculation functions. The date the condition was discovered was October 9, 2018. An evaluation was completed to determine that it was a substantial safety hazard on December 4, 2018.
Defect Determination Date:
This issue was determined to be a 10 CFR 21 Defect by PINGP on December 4, 2018.
Number and Location of Basic Components:
Nine Chesterton Seal Cartridges were supplied in 2015 to PINGP after having springs replaced to pass Framatome Inc's (formally AREVA's) commercial dedication program.
- Two of the nine seals are currently installed at PINGP. Both of these seals to .do not have a similar issue because there has been no leakage identified.
- One of the nine seals is currently installed on a spare pump which is not installed at PINGP.
- Five of the nine seals are in inventory at the PINGP Warehouse.
- One of the nine seals was replaced during scheduled maintenance in October 2018.
- One of the nine seals had the defect which is the subject of this 10CFR21 Notification.
Corrective Actions to Date:
PINGP notified Framatome Inc. of this condition on November 26, 2018. Framatome a
Inc. determined that this was Deviation in accordance with 10CFR21 on November 30, 2018. On December 4, 2018, PINGP determined that this was a Defect per the Xcel Energy 10CFR21 Program. This report is being made in accordance with the Framatome Inc..10CFR21 Program.
The defective seal cartridge was taken apart by Prairie Island Personnel who discovered that an internal 0-ring was cut. Investigation by Framatome and interviews with Chesterton revealed that the cause of the cut 0-ring was improper installation when the Chesterton Technician reassembled the seal cartridge after replacing the cartridge springs before supplying the seal cartridges to PINGP n 2015.
Advice related to the Defect:
Framatome provided an e-mail (Attachment B) to the PINGP on December 6, 2018 requesting that the five Chesterton seals that are in spares at PINGP and the one installed on a spare pump not at PINGP (if determined that it has not been tested) to be shipped to back to Framatome Inc. so Chesterton can test them to ensure the 0-rings were installed properly. Testing will be under the Framatome Inc. 10CFR50 Appendix B program.
AppendixB From: ELSISHANS Mark (FRA-IB)
Sent: Thursday, December 06, 2018 3:42 PM To: Connors, Jeffrey J.; Larimore, Brett D.; Sollom, Stephen Cc: CONNELL Trevor (FRA-IB); ZACH Kip (FRA-IB); OPSAL Philip (FRA-DTI)
Subject:
Remedy: Framatome 10CFR21 Chesterton Mechanical Seal Cartridges Jeff, Brett, and Stephen, On November 26, 2018, Framatome was contacted by the Prairie Island Nuclear Generating Plant (PINGP) in regards to a leaking Chesterton mechanical pump seal that was supplied to PINGP by Areva (now Framatome) as a safety-related component under PINGP Purchase Order 56845.
According to the information that was provided to Framatome, PINGP installed the mechanical seal on their Unit 1 RHR Pump during their Fall 1R31 outage, and during PMT testing of the pump, leakage was identified from the seal. The pump was then disassembled and the leaking seal was removed and replaced with a different seal. An internal evaluation of the leaking seal was conducted at PINGP, and a draft copy of the evaluation was supplied to Framatome. Within that draft evaluation were pictures ofthe seal that exhibited leakage in a disassembled state. The pictures showed an adapter 0-ring that was severed and was the likely cause of the leakage witnessed during PMT testing of the RHR pump.
An internal investigation was conducted in regards to the mechanical pump seal leakage that was brought to the attention of Framatome. It was discovered that during the commercial grade dedication of the seals that the internal springs (14/seal) did not meet the acceptance criteria for material of construction. The findings are documented within Framatome Condition Report 2015-5563; Areva (at the time) worked with Chesterton to resolve the material issue identified for the internal springs. The resolution was that Chesterton changed all (14) springs in each of the mechanical seals that were supplied to PINGP as safety-related components under PINGP Purchase Order 56845. The replacement springs were deemed acceptable for material of construction. The work to change the seal springs was conducted by a Chesterton representative at the Areva Lynchburg facility under the Areva 10CFR50 Appendix B program.
Conversations were held with the Chesterton representative who replaced the mechanical seal springs. Based upon those conversations, it is likely that during the re-assembly of the mechanical seals (after the internal springs were changed) that the adapter 0-ring was likely severed at that time. The design of this mechanical seal is such that the adapter 0-ring is not visible 100% of the time during assembly of the seal and not visible at all once the seal is fully assembled. The 0-rings of each seal were inspected by the Chesterton representative prior to re-assembly of the seals, and they were found to be acceptable. The PINGP evaluation supplied to Framatome states that the mechanical seal was not disassembled prior to installation on their Unit 1 RHR Pump. As such, it has
been concluded that the 0-ring which was identified as severed in the PINGP evaluation was damaged during the re-assembly of the seals by Chesterton. 0-ring damage such as that pictured in the PINGP evaluation would exhibit leakage.
To remedy the situation, Framatome will work with PINGP to have the remaining mechanical pump *~
seals supplied to them under PO 56845 returned to Framatome, so that they can be pressure or vacuum tested by Chesterton to verify that there are no damaged o~rings internal to the seals. Per communications with PINGP, there are (5) mechanical seals in their inventory which will be returned for testing and potentially a sixth seal which has been installed on a spare pump. Framatome will work with PINGP to identify the correct number of seals for pressure or vacuum testing. Other mechanical seals supplied for PINGP PO 56845 which are currently installed on operational equipment and do not exhibit leakage, are acceptable and shall not be addressed.
- Thanks, Mark Elsishans, PE Manager of Engineering & Technical Operations, Products Engineering Services Framatome Office 704-805-2676 Mobile 704-302-4056 7207 IBM Dr.
Charlotte, NC 28205 mail to: mark.elsishans@framatome.com www.framatome.com Important Note: This e-mail may contain trade secrets or privileged, undisclosed or otherwise confidential information. If you have received this e-mail in error, you are hereby notified that any review, copying or distribution of it is strictly prohibited.
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