ENS Event | |
|---|---|
04:00 Aug 2, 2007 | |
| Title | Part 21 Report - Poppet Nut and Stem Assembly Degradation on Msiv |
| Event Description | In accordance with 10 CFR 21.21(d)(3)(ii), FirstEnergy Nuclear Operating Company (FENOC) is providing the required written notification of a concern regarding the potential for vibration inducted wear on the pilot poppet nut and stem assemblies provided for use in the Beaver Valley Power Station Unit No. 2 (BVPS-2) Main Steam System Isolation Valves [MSIV] that if uncorrected could potentially create a significant safety hazard. FENOC evaluated the concern via a Prompt Operability Determination and concluded that there is reasonable assurance that currently installed valve components at BVPS-2 are operable and plans to replace the affected components during the next BVPS-2 refueling outage.
Valve manufacturer of defective valve components is Weir Valves and Controls USA Inc. in Salem, MA. The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
| Firstenergy Nuclear Operating Co. Shippingport, Pennsylvania (NRC Region 1) | |
| Organization: | Firstenergy Nuclear Operating Co. |
| Reporting | |
| 10 CFR 21.21 | |
| Time - Person (Reporting Time:+1452.57 h60.524 days <br />8.646 weeks <br />1.99 months <br />) | |
| Opened: | Peter Sena Iii 16:34 Oct 1, 2007 |
| NRC Officer: | John Knoke |
| Last Updated: | Oct 1, 2007 |
| 43679 - NRC Website | |
Firstenergy Nuclear Operating Co. with 10 CFR 21.21 | |
WEEKMONTHYEARENS 436792007-08-02T04:00:0002 August 2007 04:00:00
[Table view]10 CFR 21.21 Part 21 Report - Poppet Nut and Stem Assembly Degradation on Msiv 2007-08-02T04:00:00 | |