ML20116C572
| ML20116C572 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 10/30/1992 |
| From: | Feigenbaum T NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NYN-92148, NUDOCS 9211040155 | |
| Download: ML20116C572 (5) | |
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Odli Sea ~dEx.Y"oa874 Telephone (803)474 9521 j
Facsimile (603)474-2987 Energy Service Corporation Ted c. Feigenbaum Senior Vice Wesident and Chief Nuclea; Officer N YN-92148 October 30, 1992 U9ited States Nu<: lear Regulatory Commission Washingtoa, D C.
20555 Attention:
Document Control Desk References-(a)
Faci'ity Operating License No. NFF 86, Docket No. 50-443 (b)
USNRC Letter dated September 30, 1992, " Inspection Report No.
50-443/92 80', M. W. liodges ta '.~. C. Feige nbaum (c)
North Atlantic Letter NVN-92121 dated September 4, 1992, " Facility Operating Report (LliR) 92-11 00: Inoperable Cooling Tower Fans", T.
C Feigenbaum to USNRC (d)
North Atlantit Letter NYN-92127 dated September 30,1992, " Licensee Amendmert Request 92-13 Maraual Operation of Cooling Tower Fans and Sprays", T. C. Feigenbaum to USNRC (c)
North Atlantic Letter NYN-92137 dated Ostober 9,1992 " Request for Temporary Waiver of Compliance: Manual O'cration of Cooling Tower Fans and Sprays", T. G. Feigenbaum to USN.,C (fT North Atlantic Letter NYN-92147 dated October 28,1922
- Withdrawal of R_equest for Temporary Waive. < i Compliance" T. G. Feigenbaum to USNRC S ubject:
F.eply to a Notice of Violation Gentlemen:
In accordance with the seguiremer.ts of the Notice of Violation contained in Reference (b), the North Atlantic Energy Service Corporation (North Atlantici response to the cited violation is provided as Enclosure 1.
Should you have any questions concerning this response, please contact Mr. Janies hl Feschel, Regulatory Compliance Manager, at (603) 474-9521, extension-3 '
Very t r s,
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ed C 7eigenbaum Enclo me i
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Lj/(j 9211040S35 2 U30 a member f the Northeast Utilities system i'
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United States Nuclear Regulatery Cunmission-
. c o t>c r 30, 1992 Allention:
Document Control Desk Page two -
cc:
.Mr. Thomas T. Martin Regional Administrator U.S.. Nuclear Reguintory Commission Region i 475 allendale Road King of 1-russia, PA 19406 Mr. Gordan E. Edison, Sr. Project Manager
-l Project Directorate 13
=i Division of Reactor l'rojects U.S. Nuclear Regulatory Commission Washington, DC 20555 Mr. No..! Dudley NRC Senior Residen' inspector P.O. Ilox 1149 Seabrook, NH 03874 4
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.g North Atlantic October 30, 1992 I
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c itEPI,Y-TO A NOTICE OF VIOLATION
-l violanon As a result of the inspe: tion conducted on July 20 through August 21, 1992, and in accordara with the " General Statement of Policy and Procedure for NRC Enforcement Actions," 10 CFR 2, Appendix C (Enforcement Policy) (1992), the following violation was.
i identified:
Teci nical Specification '>.7.5.b requires that the mechanical draft cooling tower fans be operabic as determined by Surveillance Requirement 4.7,5.d, which verifies fans would automatically actuate on a tower actuation signal.
Contrary to the above, between December 8,1M and August 7,1992, the mechanical ~
drait cooling tower fans would not automatically actuate on a tower actuation signal, due to the fan control swin:hes being placed in the pull-to-lock position.
This is a Severity Level IV violation.
Reason for the Violatioa This event was addressed in Licensee Event Report (LER) No. 92-11-00 [ Reference (c)].
North Atlantic has determined that the root cause for this violation was the perforraance of an inadequate review by North Atlantic personnel in the development and certification of the Seabrook Station Technical Specifications.
Corrective Action Upon discovery that a potential violation of. plant Technical Specifications existed, the following actions were taken:
1.
The cooling tower fan control switches were taken out of the pull-to lock position and placed in the autr matic position.
2.
Technical Clarif'catiot. TS-070, that stated that it was acceptable for the fan control switches to be m " pull-to-lock", was cancelled.
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Operations p;ocedures were revised to reflect the fact that the fan control switches are no longer maintained in the pull-to-lock position, but are kept in automatic position.
Corrective - Actions to Prevent Recurrence 1,
North Atlantic performed a' review of all Technical Clarifications to ensure _that they were consistent with the intent of the Technical Specifications. No otner conditions of inconsistency were identified.
' North Atlantic submitted a L: cense Amendment Request, 'No. 92-i3, [keference (d)],
c to propose a change that will increase the Technical Specification temperature limit for the cooling to_wer basin water from the current 67.3'F to 70 F 'and permit the-cooling tower sprays and fans to be manually operated following a cooling tower
- actuation.
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- In addition, North Atlantic submitted a Request for Temparary__ Waiver of Compliance,
-[Heference (c)), to allow manual operation of the cooling tower fans and sprays z
' pv -ding the NRC review of ~ the proposed Technical-Specification change and to.
respond to the operational conditions required by_ the onset of winter.- The Rcquest
- for Temporary Waiver of Compliance was subsequently withdrawn by North Atlantic on Octotier 28,1992 [ Reference -(f)l.
North Atlantic will implement _ contingency actions to preclude ice or snow damage to the cooling tower fans pending the NRC review of License Amendment Request 9213.
Date of Full Compliance
. The immediate corrective actions taken by North ' Atlantic resulted in cornpliance' with
. Technical Sperification 3,7.5,b and Surveillance Requirement 4,7.5.d.
.\\dditionally, the approval of the License Amendme 41 Request No. 9213 will a*sure full compliance in all weather conditions while preventing the potential harmful icing of the cooling tower fans and I, tower tile fill.
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