The following information was excerpted from an Interim Part 21 Report, received from GE-Hitachi (
GEH) via email:
[This GEH Report #MFN-15-042 R2, is a closure of a Part 21 60-Day Interim Report Notification, containing] information concerning an evaluation of the failure during bench testing of Electromatic Relief Valve Actuators (ERV - GEH Part number 352B2632G001) caused by the failure of a cutout switch to determine applicability to components previously supplied to and accepted by licensees. GEH has performed component testing but has been unable to complete the evaluation to determine if a Reportable Condition, in accordance with 10 CFR 21.21 exists.
Testing was unable to model plant conditions with sufficient accuracy to draw conclusions based on the results. As such, in accordance with discussions with the sites previously identified as potentially applicable to this concern, GEH will close this 10 CFR Part 21 evaluation with a 10 CFR 21.21(b) Transfer of Information to the Dresden 2 and 3 and Quad Cities 1 and 2 sites.
References
1. 60-Day Interim Report Notification, Titled: Potential Failure of Electromatic Relief Valve Cutout Switch, Numbered: MFN 15-042 R0, Dated: June 12, 2015.
2. 60-Day Interim Report Notification, Titled: Potential Failure of Electromatic Relief Valve Cutout Switch, Numbered: MFN 15-042 R1, Dated: June 22, 2015.
The original notification was reported on June 12, 2015. Because there was a proprietary information disclaimer at the top of that page, GEH revised the original report and submitted that revised letter on June 17, 2015. The revision 1 letter was posted in ADAMS with the following accession numbers as the original report.
- ML15169A007 - Part 21 60-Day Interim Report Notification: Potential Failure of Electromatic Relief Valve Cutout Switch. (2 page(s), 6/17/2015)
- ML15169A008 - Attachment 1 - US Plants Potentially Affected. (1 page(s), 6/18/2015)
- ML15169A009 - Attachment 2 - 60-Day Interim Report Notification Information per 21.21(a)(2). (2 page(s), 6/18/2015)
- ML15169A010 - Enclosure 1 - MFN 15-042 R0 - Description of Evaluation. (6 page(s), 6/18/2015)
If you have any questions, please call;
Dale E. Porter
Safety Evaluation Program Manager
GE-Hitachi Nuclear Energy Americas LLC
Ph: (910) 819-4491.