ML13340A382
| ML13340A382 | |
| Person / Time | |
|---|---|
| Site: | Hatch, Monticello, Peach Bottom, Browns Ferry, Nine Mile Point, Fermi, Grand Gulf, Susquehanna, Columbia, Brunswick, Limerick  |
| Issue date: | 12/05/2013 |
| From: | Porter D GE-Hitachi Nuclear Energy Americas |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML13340A736 | List: |
| References | |
| MFN 13-094 | |
| Download: ML13340A382 (4) | |
Text
GE Hitachi Nuclear Energy December 5, 2013 MFN 13-094 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001
Subject:
Part 21 Reportable Condition Notification:
Failure of Relay Logic Card Modules in 2 Out of 4 Voters This letter provides information concerning an evaluation performed by GE Hitachi Nuclear Energy (GEH) regarding the failure of Relay Logic Card Modules in 2 out of 4 Voters.
Based upon the evaluation, GEH has determined that a Reportable Condition under 10CFR Part 21 exists for plants listed herein. This determination does not apply to the ABWR or ESBWR Design Control Documents (DCD). The information contained in this document informs the NRC of the conclusions and recommendations derived from GEHs evaluation of this issue.
If you have any questions, please call me at (910) 819-4491.
Sincerely, Dale E. Porter Safety Evaluation Program Manager GE-Hitachi Nuclear Energy Americas LLC Dale E. Porter GE-Hitachi Nuclear Energy Americas LLC Safety Evaluation Program Manager 3901 Castle Hayne Rd.
Wilmington, NC 28401 USA T 910 819-4491 Dale.Porter@GE.Com Proprietary Notice This letter transmits proprietary information in accordance with 10 CFR 2.390. Upon removal of, the balance of this letter may be considered non-proprietary.
MFN 13-094 Page 2 of 2 Attachments:
- 1. US Plants Potentially Affected
- 2. Report Notification Information per §21.21(a)(2)
Enclosures:
- 1. Description of Evaluation - GEH Proprietary Information - Class III (Confidential)
- 2. Description of Evaluation - Non-Proprietary Information - Class I (Public)
- 3. Affidavit - Dated December 5, 2013 cc:
J. Golla, USNRC S. S. Philpott, USNRC S. J. Pannier, USNRC O. Tabatabai-Yazdi, USNRC P. A. Nichols, GEH J. F. Harrison, GEH J. G. Head, GEH G. A. Watford, GEH P. L. Campbell, GEH Washington PRC File Archive Copy in ECO-0000389 Document Components:
001 MFN 13-094 Cover Letter.pdf 002 MFN 13-094 Enclosure 1 Proprietary.pdf 003 MFN 13-094 Enclosure 2 Non-Proprietary.pdf 004 MFN 13-094 Enclosure 3 Affidavit.pdf
MFN 13-094 Page 1 of 1 US Plants Potentially Affected US BWR Plants and Associated Facilities Utility Plant X
Constellation Energy Nine Mile Point 2 X
Detroit Edison Co.
Fermi 2 X
Entergy Grand Gulf X
Exelon Limerick 1-2 X
Exelon Peach Bottom 2-3 X
PPL Susquehanna LLC Susquehanna 1-2 X
Duke Energy - Progress Brunswick 1-2 X
Southern Nuclear Operating Co.
Hatch 1-2 X
Tennessee Valley Authority Browns Ferry 1-3 X
Xcel Energy Monticello X
Energy Northwest Columbia
MFN 13-094 Page 1 of 2 Report Notification Information per §21.21(a)(2)
(i)
Name and address of the individual or individuals informing the Commission.
Dale E. Porter GE Hitachi Nuclear Energy Safety Evaluation Program Manager 3901 Castle Hayne Road, Wilmington, NC 28401 (ii)
Identification of the facility, the activity, or the basic component supplied for such facility which fails to comply or contains a defect.
Two-Out-of-Four Logic Modules (Voters) are installed at the following plants:
Site Unit Two-out-of Four Logic Module Part Number PRNM Installed Hatch 1 304A3807G002 1996 Hatch 2 304A3807G002 1997 Browns Ferry 2 304A3807G004 1997 Browns Ferry 3 304A3807G004 1998 Fermi 2 304A3807G003 1998 NMP-2 304A3807G005 1998 Peach Bottom 2 304A3807G006 1999 Peach Bottom 3 304A3807G006 2000 Limerick 1 304A3807G007 2000 Limerick 2 304A3807G007 2001 Brunswick 1 304A3807G009 2002 Brunswick 2 304A3807G009 2003 Susquehanna 1 304A3807WJG001 2006 Browns Ferry 1 304A3807G011 2007 Susquehanna 2 304A3807WJG001 2007 Monticello 304A3807NFG001 2009 Columbia (Note 1) 304A3807TCG001 2011 Grand Gulf 304A3807WAG001 2012 Note 1: The Columbia PRNM System was delivered to Columbia in 2011 but the system has not been installed as of this date. Installation is currently scheduled for 2015.
MFN 13-094 Page 2 of 2 (iii) Identification of the firm constructing the facility or supplying the basic component which fails to comply or contains a defect.
The Two-Out-of-Four Logic Modules (Voters) listed in section (ii) were designed and fabricated by GE Hitachi Nuclear Energy.
(iv) Nature of the defect or failure to comply and the safety hazard which is created or could be created by such defect or failure to comply.
The observed aging characteristics of the Solid State Relays on two particular Voter Relay Logic Cards Modules present a future challenge to the Power Range Neutron Monitoring Systems ability to reliably insert the Average Power Range Monitor (APRM) High-High/INOP Scram and/or the Oscillating Power Range Monitor (OPRM)
Scram to the Reactor Protection System (RPS) if plant conditions warrant such action.
(v)
The date on which the information of such defect or failure to comply was obtained.
A Potential Reportable Condition Evaluation in accordance with 10 CFR Part 21 was initiated on October 9, 2013.
(vi) In the case of a basic component which contains a defect or fails to comply, the number and location of these components in use at, supplied for, being supplied for, or may be supplied for, manufactured, or being manufactured for one or more facilities or activities subject to the regulations in this part.
See sub-paragraph (ii).
(vii) The corrective action, which has been, is being, or will be taken; the name of the individual or organization responsible for the action; and the length of time that has been or will be taken to complete the action.
GEH investigated these failures under 10 CFR Part 21. Following completion of the 10 CFR Part 21 Investigation, GEH advises potentially affected customers to replace the Relay Logic Card Modules containing the aging Solid State Relays if they have been in-service for ten years or longer and on a ten-year periodicity thereafter.
(viii) Any advice related to the defect or failure to comply about the facility, activity, or basic component that has been, is being, or will be given to purchasers or licensees.
GEH advised affected customers to replace the Relay Logic Card Modules containing the aging Solid State Relays if they have been in-service for ten years or longer at the first reasonable opportunity and on a ten-year periodicity thereafter.
(ix) In the case of an early site permit, the entities to whom an early site permit was transferred.
This is not an early site permit concern.