ML20101F104
| ML20101F104 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 06/19/1992 |
| From: | Drawbridge B PUBLIC SERVICE CO. OF NEW HAMPSHIRE |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20101F107 | List: |
| References | |
| NYN-92080, NUDOCS 9206240276 | |
| Download: ML20101F104 (3) | |
Text
a n
New Hampshire h nkee NYN-92080 June to, lW2 United states Nuclear llegulatory Commission Washington, D.C.
20555 Attention:
Docurnent Control Desk
References:
(a)
Facility Operating 1.icense No, NPlW, Doctet No. 50-443 (b)
NilY Letter NYN 92032 dated March 20, 1992 *Littnse Amendment Req'.icst Cl 1D; Decoupling of the Lou, of Olisite Power / Safety injection Test From the 24 llour Diesel Generatot $"rnillance Run (c)
NilY Letter NYN 92054 dated April.'4,1992 Tonfitnution of NilY C unmitments llegarding Emergency Diesel Generator Testing
Subject:
Supplement I to License Amendment Request 91 10; " Revisions to the Diesel Generator Surveillance Requirements Gentlemen:
New llampshire Yankee (NilY) submitted License Amendment Request 91-10, Decoupling of the Loss of Offsite Power / Safety injection Test From the 24 llour Diesel Geacrator Surveillance Run, to the NRC on March 20,1992 l Reference (b)]
The NRC, in a teleconference, on April 15,1992 stated that the testing perf ormed on the emergency diescl generators did not fully nicet the intent of Regulatory Position C.2.a,(5) of Regulatory tiuidt 1.103, " Periodic Testing of Diesel knerator Units Used as Onsite Iflectrical Power Systems at Nuclear Power Systems". NilY concurred with the NRC position. NilY, in a letter to the NRC dated April 24,1992 lReicrence (c)l, (onfirmed hov diesel generator testing was to be conducted the next time the plant entered MODE 5 and committed to supplement License Amendment Reonest 91-10 to clarify the existing heabrook Station Technical Specification.
Representatives of NilY and the NRC met on May 5 and June 10, 1992 to discuss NHT 's proposal for acceptable alternatives to the present Surveillance Requi*ements. The proposed alternatives, presented in Supplement I to License Amendment Request 91 10 will alleviate the buiden imposed by the current requirements by removing unnecessary outage schedule ; const raints. The current Technical Specification requires that a Loss of Offsite Power / Safety injection (LOP /SI) test be performed within 5 minutes af the diesel generator 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> run of Surveillance Requirement 4.8.LI.2f,7). This LOP /SI surveillance can only be performed near the enu of the eutuge when all of the required enginected aafety teatures (ESP) c<juipment is returned to service. 13y requiring an LOP /SI test near the end of the 3
outage, the outage is extended for a minimum of 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, for testing of both dicsd generators, Eliminating this extension alleviates the scheduling difficulties and the assor:ated financial burden due to the need to purchase replacement power for the additional period.
The proposed resision to the diesel generator Surveillance Requirements will meet the intent of Regulatory Guide 1.108.
i 9206240276 920619 PDR ADOCK 05000443 0
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New Hamp> hire Yankee Division of Public Serv;ce Cempany of New Hampshire g\\
--~vvU P.O. Box 300
- Seabrook, NH 03874
- Telephone (603) 474 9521
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4 United hintes Nuclear Regulatory Commission June 19,1992 Attention:
Document Control Dest Page two r
To facilitate the NitC review of Supplement I to License Amendment itequest 91 10, NilY has enclosed a stand alone document which is to be und in its entirety in place of the original License Amendment flequest 9110.
2 Supplement 1 to Liecnse Amendment flequest 91+10 has been reviewed and upptove I by the NilY Station Opetution Review Committee and the Nuclear Safety Audit lle vie w Committee.
As discussed in the enclosed License Amendment Request 91-10, Sculon V, the proposed changes have been deterrnined not to involve a significant hazards consideration pursuant to the standards of 10CFil50.92. A copy of this letter and the enclosed License i
Amendment Request 9110 ha_ve been forwarded to the State of New liarepehire State Liaison Officer pursuant to 10CFR50.91(b).
New Hampshire Yankee requests NRC review of Supplement I to License Amendment Request 9110 and issuance of a license amendment oy August 15, 1992. This schedule is proposed to alleviate unnecessary schedule constrnints during the upcoming refueling outage.
- scheduled to begin on September 7.1992. Should you have any questions regarding this
' letter, please contact Mr. Terry L. liarpster. Director of Licensing Services, at (603) 474-9521 extension 2705.
Very trul(/
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n United States Niiclear Regulatory Commission June 19.1992 Attention:
Document Control Desk Page three cc:
Mr. Thomas T. Martin Regional Administrator United States Nuclear Regulatory Commission Region i 475-Allendale Roud King of Prussia, PA - 19406 Mr,'Gotdon E. Edison, Sr. Project Manager Project Directorate 13 Division of Reactor Projects U.S. Nuclear Regulatory Commission Washington, DC 20$$$
Mr. Noel.Dudley NRC Senior Resident inspector P.O. Box 1149 Seabrook, Nil 03874 M
George L Iverson, Director New ilampshire Office of Ernergency Management 107 Pleasant Street Concord, Nil 03301 Mr. Ted C. Feigenham President & CEO P.O.130x 300 Scabrook, Nil 03874 L
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