ML20029D848
| ML20029D848 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 04/29/1994 |
| From: | Feigenbaum T NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-93-04, GL-93-4, NYN-94054, TAC-M86865, NUDOCS 9405100217 | |
| Download: ML20029D848 (2) | |
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d AF Atlantic s~i - ' N " = 74 (603) 474~9 fat, Fax (603) 474 29ft7 fp The Northeast Utilities Syatem Teil C. Feigenbaum NYN-94054 Senior vice Preaident A Chief Nuclear Officer April 29,1994 United States Nuclear Regulatory Commission Washington.1).C 20555 Attention:
1)ocument Control 1)esk
Reference:
(a)
Facility Operating 1.icense No. NPF-86.1)ocket No. 50-443 (b)
NRC Generic 1 etter 93-04, dated June 21.1993, " Rod Control System Failure and Withdrawal of Rod Control Cluster Assemblies" (c)
North Atlantic letter NYN-93109, dated August 5,1993, " Initial (45-day)
Response to Generic I,etter 93 04", it 1 Drawbridge to USNRC (d)
North Atlantic letter NYN-93129 dated September 20,1993, "90-Day Response to Generic I,etter 93-04", R.J. Del.oach to USNRC (e)
Westinghouse !!!cctric Corporation letter WOG-94-048, dated April 8,1994, "WestinphouseOnners Group Transmittal of Recommended Rod Control System Sun cillance Test (MilUP-6002)", K. J. Voytell to Westinghouse On cers Group Primary Representativesand Systems & liquipment Subcommittee Representatives
Subject:
Status of Actions Pertaining to Generic 1.etter 93-04. (TAC No. M86865)
Gentlemen:
The NRC issued Generic 1.etter 93-04 [ Reference (b)) in response to the rod control system event at the Salem Nuclear Generating Station, Unit 2. 'lhe generic letter requires licensees of Westinghouse-designed nuclear power reactors, including Seabrook Station, to provide plant-specific rod control system information. The generic letter requires an assessment of whether or not the licensing basis lbr the liicility is still satisfied with regard to the requirements for system response to a single failure in the rod control sy stem [ Required Response 1.(a)). If this assessment indicates that the licensing basis is not satisfied, the generic letter requires a further assessment of the impact of potential rod control system single failures on the facility licensing basis and a description of compensatory short-term actions taken or planned l Required Response 1.(b)l. A follow-up response was required providing a plan and schedule for long-tenn resolution of the applicable issues [ Required Response 2.J.
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o United States Nuclear Regulatory Commission April 29,1994 Attention:
Document Control Desk Page two i
North Atlantic linergy Service Corporation (North Atlantic) provided responses to the Required Responses of Generic Letter 93-04 in Reference (c) and Reference (d). Ilowever, North Atlantic stated in Reference (d) that additional information would be required from Westinghouse befbre the merits of installing the rod control system timing order adjustments could be evaluated, and committed to providing a w ritten update report to the NRC on the status of activitics associated with Generic Letter 93-04 by April 30,1994. This letter provides that update.
The additional infbrmation required from Westinghouse that was referred to in Reference (d) was to be based on the South Texas Project demonstration of the rod control system timing order adjustments.
Iloweser, the results of the rod control testing perfbrmed at South Texas Project indicated the need for additional testing, which is being perfonned at Ginna Station. North Atlantic intends to evaluate the merits of the rod control system timing order adjustments upon issuance of the required technical information by Westinghouse following a successful demonstration at Ginna Station. North Atlantic also intends to perfonn the Westinghouse Owners Group recommended surveillance test during the third refueling outage, which connnenced on April 9,1994, as previously stated in Reference (d).
North Atlantic will submit a subsequent written update report to the NRC concerning the status of remaining actions associated with Generic I etter 93 04 by October 31,1994 or sooner if developments warrant.
Should you hase any questions concerning this matter, please contact Mr. James M. Peschel, Regulatory Compliance Manager, at (603) 474-9521, extension 3772.
f Very t y yours, d$
W Ted C. Feigenbaum v
TCF:MJM/act ec:
Mr. Thomas T. Martin Regional Administrator U.S Nuclear Regulatory Cononission Region I 475 Allendale Road King of Prussia, PA 19406 1
Mr. Alben W. De Agazio, Sr. Project Manager Project Directorate 1-4 I)ivision of Reactor Projects U.S. Nuclear Regulatory Commission Washington, DC 20555 Mr Antone C. Cerne NRC Senior Resident inspector P.O. Box 1149 Scabrook, Nil 93874
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