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#REDIRECT [[B15388, Forwards Generic Ltr 89-10 Design-Basis Closure Millstone Unit 3]]
| number = ML20093C722
| issue date = 10/06/1995
| title = Forwards Generic Ltr 89-10 Design-Basis Closure Millstone Unit 3
| author name = Debarba E, Opeka J
| author affiliation = NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
| addressee name =
| addressee affiliation = NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
| docket = 05000423
| license number =
| contact person =
| document report number = B15388, GL-89-10, NUDOCS 9510130002
| package number = ML20093C724
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE
| page count = 4
}}
 
=Text=
{{#Wiki_filter:.    .-          -    - -        ,  . ~ . . -    -    . . . ..        -.            ---
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              < Utilities System                                    so,16 t twiitie. service comp.ny P.O. Box 270 :
4                                                                  li.rtford, CT 061410270
;                                                                  (203) 665-5000 :
^
October 6, 1995 Docket No. 50-423 B15388 U.S. Nuclear Regulatory Commission Attention: Document Control Desk
-      Washington, DC 20555 Millstone'Ndclear Power Station, Unit No. 3 i                              Clot!ure of Generic Letter 89-10 Attachment 1 to this letter is the Closeout Report for the Generic Letter (GL) 89-10 Motor-Operated Valve (MOV) Program at                                          r Millstone Unit No. 3.              This report summarizes actions taken and                              i information compiled                      response to GL 89-10,*                    including in supplements.          This Closecut Report will be included in the MOV Program Manual, which is maintained as a controlled document.
Northeast Nuclear Energy Company's (NNECO) GL 89-10 MOV Program i      identified safety-related MOVs and their design basis functions, 4
and demonstrated through testing, analysis, and where necessary, modifications, the ability of those valves to fulfill those 1
functions with a high level of certainty. This program included
;      several proactive features, such as:
Use of Kalsi Engineering,                Inc., KEI Gate Program for non-testable valves in place of the Electric Power Research Institute's Performance Prediction Methodology which was I
delayed, Development of a comprehensive and consistent structural analysis procedure which replaced diverse vendor seismic weak 4              link calculations, and 4
4 Employment of consistently-determined results from three other operating Northeast Utilities (NU) nuclear power plants to
;              further validate program assumptions.
In addition, NNECO and NU have been aggressive in addressing recent a      pressure locking and thermal binding concerns.
The closeout Report also identifies longer term actions being
,      (1)    James'G. Partlow letter to All Licensees of Operating Nuclear Power. Plants and Holders of Construction Permits for Nuclear Power Plants, " Safety-Related Motor-Operated Valve Testing and Surveillance," dated June 28, 1989.
I                        120027 mu22 an m                                                                                              0 9510130002 951006                                                                '
PDR- ADOCK 05000423                                                                  1 P                  .PDR 3
 
      'U.S. Nuclear Regulatory Commission-B15388/Page 2 October.6,-1995 The Closeout Report 'also . identifies longer ' term actions being implemented to ensure, on a' continuing basis, that these safety-
;  - related MOVs will remain capable of fulfilling their' design basis functions'.- With these longer term actions, the Millstone Unit No.
      '3 MOV Program becomes a living program which will use performance monitoring and trending to identify problems in advance and adjust programmatic activity to maximize its benefit while minimizing the impact-of MOV work on outage durations.
Commitments B15388-1 NNECO hereby commits to maintaining the MOV Program Manual as the        !
:  controlling document for the Millstone Unit No. 3 MOV Program.
I  - NNECO reserves' the right ' to make changes to the Manual, in accordance with our procedures for- revision of controlled documents, while preserving conformation with GL 89-10 and its' supplements.
,      We believe the foregoing'information will support the NRC Staff's closure of NNECO's GL 89-10 efforts for Millstone ' Unit No.        3.
,      Should you have any questions or require additional information, please contact Mr. Timothy G. Murray at (203)'440-2068.
I
;                                            Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY FOR: J. F. Opeka Executive Vice President BY:                    --
E. A. DeBarba Vice President c      cc:  T. T. Martin, Region I Administrator V. L. Rooney, NRC Project Manager, Millstone Unit No. 3 l          P. D. Swetland, _ Senior Resident Inspector, Millstone Unit Nos. 1, 2, and 3 a
i'
 
d UiS.-' Nuclear' Regulatory Commission                                !
B15388/Page''3 l
1
      . October.6,'1995 Subscribed and sworn to before me
      - this    [//_ day of - /)c2a [r r -      ,  1995 5#          dW Date commission Expires:'        /s.[4/,!f7 i
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!.                                                                                      Docket No. 50-423                                ,
,                                                                                                                              B15388 1
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Attachment 1 Millstone Nuclear Power Station, Unit No. 3 Closure of Generic. Letter 89-10 1
I l
October 1995}}

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