ML20092M836

Interim Deficiency Rept Re Svc Air Sys non-nuclear Safety (Nns) Supports.Initially Reported on 830714.All Pipe Supports That Do Not Meet NNS-1 Pipe Support Criteria Will Be Modified to Bring Support Up to NNS-1 Design

ML20092M836
Person / Time
Site:	Seabrook
Issue date:	06/19/1984
From:	Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE, YANKEE ATOMIC ELECTRIC CO.
To:	Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
SBN-669, NUDOCS 8407020399
Download: ML20092M836 (4)

Text

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smox stAm Engineedng Office:

IPUBLIC Companyof New SERVICE Hampshire 1671 Worcester Road Framinghom. Mossochusetts 01701 (617) - 872 - 8100 June 19, 1984 SBN- 669 T.F. Q2.2.2 United States Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, PA 19406 Attention: Mr. Richard W. Starostecki, Director Division of Project and Resident Programs

References:

(a) Construction Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) Telecon of July 14, 1983, A. L. Legendre (YAEC) to Eugene Kelley (NRC Region I)

(c) PSNH Letter, dated August 12, 1983, " Interim 10CFR50.55(e)

Reports; Attachments to NNS-1 Pipe Supports and Service Air

. System NNS Supports", J. DeVincentis to R. W. Starostecki (d) PSNH Letter, dated September 28,1983, " Interim 10CFR50.55(e) Report; Attachments to NNS-1 Pipe Supports and Service Air System NNS Supports", J. DeViacentis to R. V. Starostecki (e) PSNH Letter, dated November 10, 1983, " Interim 10CFR50.55(e) Report; Attachments to NNS-1 Pipe Supports and Service Air System NNS Supports", J. DeVincentis to R. W. S ta ro s te cki (f) PSNH Letter, dated December 2, 1983, " Interim 10CFR50.55(e)

Report; Service Air System NNS Supports", J. DeVincentis to R. W. Starostecki

Subject:

Interim 10CFR50.55(e) Report; Service Air System NNS Supports

Dear Sir:

On July 14, 1983, we reported a potential 10CFR50.55(e) item to Region I

[Ref erence (b)] regarding supports for the Service Air System which carry a Non-Nuclear Safety (NNS) designation in spite of this systems proximity.to safety-related equipment. The following information is being filed pursuant to the interim reporting provision of 10CFR50.55(e)(3).

A. Description of Deficiency We have identified pipe supports on the Service Air System classified as Non-Nuclear Safety (NNS) which are located in proximity to safety-related equipment. The proper classification is 8407020399 840619 PDR ADOCK 05000443 S PDR L IE J]

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\x Jun%19, 1984 United States Nuclear Regulatory Commission Attention: Mr. Richard W. Starostecki, Dizector '1Pige 2

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Non-Nuclear Seismic (NNS-1), whereby tha structural integrity of a support during a seismic / operating event is assured. We have also identified pipe suppcrts associated stA,W other systems that have been classified as NNS and are in proxinfity to safety-related equipment. This classification discrepancy on the supports that were designated as NNS rather than NNS-lyis due to the fact that(

this designation was instituted after thepe support designs-werg -

issued for construction. In addition, a portion of these supporty, plus approximately 700 supports properly classified as NE -1, do not

• have retrievable formal calculations. ,

e On December 2,1983 [ Reference (f)], wa., accorded this item a' ,j reportable status due to the extensive duration o1 evaluation that ,

would be required to absolutely determine whether this item meets the reportability criteria of 10CFR50.55(e).

Our evaluation of the support designs in question is rearly complete. A total of 1,362 pipe support points require an evaluation. Of this total, all but thirty-one a'!pport' points remain to be evaluated. \' ..

s The changes resulting from the evaluaticn of N,331 support points to' date are as follows: .

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1. Two-hundred-twelve (212) pipe supports required a ,

reclassification f rom NNS to NNS-1. ,

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2. Sixty (60) pipe supports (some installed) required t modifications to meet NNS-1 design criteria. g B. Analysis of Safety Implications The failure of these pipe supports during a seismic / operating event could have adversely impacted the function of safety-related equipment.

C. Corrective Action All pipe supports that do not meet the NNS-1 pipe support criteria will be modified to bring the support up to NNS-1 design requirements.

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-United States Nuclesr Regulatory Commission June 19, 1984 Nih[7hY Mi '

~Aitention: -Mr. Richard W. Starostecki, Director Page 3-sie V N'N< ,

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' 'U iht will notify your office when the evaluation of the remaining 31

..,. . support points has been completed.

L(?if Very truly yours, 3 pg YANKEE ' ATOMIC ELECTRIC COMPANY.

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John DeVincentis .

Engineering Manager u e, r' cc: Atomic Safety and Licensing Board Service List' Director, Office'of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 U

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, , e I William S. Jardin, III, E:quiro 3rentwood Board of Selectmen '

--Harmon & Weiss RED Dalton Road i 1725 I Street..N.W. Suite 506 Brentwood, New Hampshire 03833 t Washington, DC 20006

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t Roy P. Lessy, Jr., Esquire >

Office.of the Executive Legal Director ~ Edward F. Meany U.S. Nuclear Regulatory Commission Designated Representative of Washington, DC 20555 the Town of Rye j 155 Washington Road l Robert A. Backus, Esquire Rye, NH 03870 l 116.Lowell Street .

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-P.O. Box 516 .

Calvin A. Canney Nancehster, NH 03105 City Manager j t .

City Hall  ;

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Assistant Attorney General Portsmouth, NH 03301 Department of_the Attorney General i

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. the1 Town of l'hmpton Concord, NH 03301 ,

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Hampton, NH 03842 Anne Verge, Chairperson i Board of Selectmen ,

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the. Town of Kensington Carole F. Kagan, Esq.

RFD 1 Atomic Safety and Licensing Board Panel

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Jo Ann Shotwell, Esquire s

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Boston, hA 02108 ,

Town Manager's Office I

< Senctor Gordon J. Humphrey. Town Hall - Friend Street 01913 4

fU.S. Senate .

Amesbury, Mt.

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, ~SEsbrook7 NH 03874 #

Richard E. Sullivan, Mayor

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Town Manager Newburyport, MA 01950

Town of Exeter 10 ' Front. 4Vyeet' . .

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