View source for 05000423/LER-1997-011, Provides Revised Schedule for Completion of Corrective Actions Committed to in LER 97-011-00, H Recombiner Heaters Potentially Outside of Design Basis Under Degraded Voltage Conditions

{{Adams
| number = ML20140H529
| issue date = 06/12/1997
| title = Provides Revised Schedule for Completion of Corrective Actions Committed to in LER 97-011-00, H Recombiner Heaters Potentially Outside of Design Basis Under Degraded Voltage Conditions
| author name = Hicks G
| author affiliation = NORTHEAST NUCLEAR ENERGY CO.
| addressee name = 
| addressee affiliation = NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
| docket = 05000423
| license number = 
| contact person = 
| document report number = B16525, NUDOCS 9706180301
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE
| page count = 4
}}
{{LER
| Title = Provides Revised Schedule for Completion of Corrective Actions Committed to in LER 97-011-00, H Recombiner Heaters Potentially Outside of Design Basis Under Degraded Voltage Conditions
| Plant = 
| Reporting criterion = 
| Power level = 
| Mode = 
| Docket = 05000423
| LER year = 2097
| LER number = 11
| LER revision = 
| Event date = 
| Report date = 
| ENS = 
| abstract = 
}}

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,                                                                                                                 Nordwa.: Nuclear Energy Company
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(860) 447 1791 l                                                                                                                 Faa (860) 444 4277 The Nortlwant Utihtic Synem June 12,1997                              I Docket No 50-423                                  -
B16525 i
U.S. Nuclear Regulatory Commission                                                                                                                        !
Attention: Document Control Desk                                                              -
Washington, DC 20555                                                                                                                                      i Millstone Nuclear Power Station Unit No. 3                                                                               i Revised Schedule Ca'culation Of Hydroaen Recombiner Heater Performance                                                                                       j The purpose of this letter is to provide our revised schedule for the completion of                                                                      {
corrective actions previously committed to in Licensee Event Report 97-011-00,                                                                           i "Hydroaen Recombiner Heaters Potentially Outside Of Dosion Basis Under                                                                                    l Dearaded Voltaae Conditions". This extension is necessitated as a direct result                                                                           i of providing the incorrect parameters to Boeing /Rocketdyne with which to perform the calculations committed to within our letter of February 28,1997.                                                                              !
The design parameters provided were based on the original sub-atmospheric                                                                                j pressure containment design. These parameters changed as a result of an                                                                                  ;
increase in containment operating pressure authorized under Amendment 59.                                                                                !
Our revised commitments are provided in Attachment 1.                                                                                                     l Should you have any questions regarding this matter please contact Mr.
David A. Smith at (860) 437-5840.
Very truly yours,                                                                             l 1
NORTHEAST NUCLEAR ENERGY COMPANY                                                             l G.
C.
A                                                         ,
irector - Millstone Unit 3                                               f
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t  ,                    U.S. Nucl:ar Regulatory Commission l
B16525'Page 2                                                                       i i
ec '  H. J. Miller, Region i Administrator                                       '
i-                            W.D. Travers, PhD, Director, Special Projects Office J. W. Andersen, NRC Project V,anager, Millstone Unit No. 3 A. C. Corne, Senior Resident inspector, Millstone Unit No. 3                  ;
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l l          ct l-I                                                                                                                                            f Docket No. 50-423 B16525 l
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I Attachment 1 Millstone Nuclear Power Station Unit No. 3 Revised Commitments I
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June 1997             l l
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,-     U.S. Nucl:cr Regulatory Commission B16525%ttachment 1\Page 1 Enclosure List of Regulatory Commitments The following table identifies those actions committed to by NNECO in this                                      ,
document. Please notify the Manager - Nuclear Licensing at the Millstone                                        l Nuclear Power Station Unit No. 3 of any r(asstions regarding this document or                                  :
any associated regulatory commitments.
Commitment                            Committed Date B16233-01              1 Perform a calculation or evaluation to       August 13,1997 (LER 97-011-00) determine the Hydrogen Recombiner heater performance under degraded voltage conditions.
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