ML17059A533
| ML17059A533 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 11/17/1994 |
| From: | Cooper R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Sylvia B NIAGARA MOHAWK POWER CORP. |
| References | |
| NUDOCS 9411220197 | |
| Download: ML17059A533 (8) | |
Text
November 17, 1994 Hr. B. Ralph Sylvia Executive Vice President - Nuclear Niagara Hohawk Power Corporation Nine Nile Point Nuclear Station P.O.
Box 63
- Lycoming, NY 13093
SUBJECT:
NOTICE OF ENFORCEHENT DISCRETION FOR NIAGARA HOHAWK REGARDING NINE HILE POINT UNIT 2
Dear Hr. Sylvia:
This letter confirms that at 8:55 a.m.
on November 14, 1994, the Nuclear Regulatory Commission (NRC) orally granted Niagara Hohawk Power Corporation's request for enforcement discretion from the requirements of Nine Hile Point Unit 2 (NMP2) Technical Specification Limiting Condition for Operation (LCO) 3.8. 1.1 b.
Specifically, in a telephone conversation with the NRC on November 14,
- 1994, you requested the staff to exercise discretion with regard to exceeding the 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> related to NHP2 Technical Specification LCO 3.8. 1. 1 ACTION b for Division 'II Emergency Diesel Generator (Div II EDG) being inoperable.
The requested enforcement discretion allows continued operation of NHP2 with Div II EDG inoperable 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> beyond the 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> allowed.
As j'ustification for the requested enforcement discretion, Niagara Hohawk Power Corporation (NHPC) stated that the 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> would be needed for the anticipated additional amount of time required to complete post-maintenance testing of the Div II EDG and return the equipment to OPERABLE status following replacement of a master connecting rod.
During the 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> period of the enforcement discretion, the entire onsite Class 1E distribution system will be energized by two OPERABLE physically independent 115 kv circuits.
Additionally, NHPC will implement certain compensatory actions during this time period which will enhance the reliability of the remaining offsite 115 kv and onsite Class lE power sources.
The compensatory actions in conjunction with surveillance testing provide assurance that needed equipment will be available to support safe shutdown or accident mitigation, should either be required.
Your oral request was followed up by a written request in a letter dated November 14, 1994.
We have subsequently reviewed your documented justification fo} the extension and have concluded that the requested action involved no significant safety impact.
Furthermore, the extension of the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> LCO by 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> was appropriate to minimize the potential safety consequences of an unnecessary plant transient (e.g., TS-required shutdown) that would otherwise have been necessary.
Accordingly, we are satisfied that the exercise of enforcement discretion, i.e. not to enforce the requirements of ACTION statement b of LCO 3.8. 1. 1 for the period from 09: 14 a.m.
on November 14, 1994 to 09:14 p.m.
on November 14,
- 1994, was warranted from a public health and safety perspective.
9422220297 942227 PDR ADOCK 05000420 P
PDR OFFICIAL RECORD COPY IE:01
Mr. B. Ralph Sylvia Unit 2 continued to operate in OPERATIONAL CONDITION 1 with Div II EDG inoperable for greater than 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> to allow completion of post-maintenance testing following the replacement of a master connecting rod.
We note that you satisfactorily completed post maintenance testing and restored Div II EDG
.to operable status at ll:55 a.m.
on November 14, 1994.
Notwithstanding our granting your request for enforcement discretion, the NRC will consider the need for enforcement action for the root cause that led to-the noncompliance for which the discretion was used.
Sincerely, Original Signed by:,
Docket No. 50-410 NOED No. 94-1-009 Richard W. Cooper, II, Director Division of Reactor Projects CC:
L. Storz, Vice President Nuclear Generation C. Terry, Vice President Nuclear Engineering M. McCormick, Vice President, Safety Assessment S. Support K. Dahlberg, Unit 2 Plant Manager D. Wolniak, Manager, Licensing (Acting)
J.'Warden, New York Consumer Protection Branch G. Wilson, Senior Attorney M. Wetterhahn, Winston and Strawn
- Director, Energy 5, Water Division, Department of Public Service, State of New York C. Donaldson, Esquire, Assistant Attorney General, New York Department of Law State of New York, SLO Designee
Hr. B. Ralph Sylvia Distribution W.,Dean, OEDO (WHD)
B. Norris Nine Mile Point H. Case, NRR D. Brinkman, NRR M. Campion, RI (VIA E-l9LIL)
Distribution K. Abraham, PAO PUBLIC.
Nuclear Safety Information Center (NSIC)
NRC Resident Inspector Region I Docket Room (with concurrences)
DOCUMENT NAME:
G: )BRANCH1)ENFDISC. LTR Wee previous concurrence To receive a copy of this document, nndiatee in the boc 'C'opy without attachmen%ndosure
'P Copy with attachment/endosure 'N'o copy OFFICE
- RI/DRP MGareri NAME DATE ll 94 RI/DRP LDoerflein ll i
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B. Ralph Sylvia Distribution W. Dean, OEDO (WHD)
B. Norris Nine Mile Point M. Case, NRR D. Brinkman, NRR H. -Campion, RI (VIA E-NAIL)
Distribution K. Abraham, PAO PUBLIC Nuclear Safety Information Center (NSIC)
NRC Resident Inspector Region I Docket Room (with concurrences)
DOCUMENT NAME:
G: iBRANCHIiENFDISC. LTR To receive a copy of this document, indicate In the bcuc 'C ~ Copy without attachmen%nciosure E ~ Copy with attachmen%nciosure
'N' No copy OFFICE RI/DRP RI/DRP RI/DRP HO/NRR NAME HGareri A
":z LDoerflein CCow ill JZwolinski DATE
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