ML20137A416

Accepts 850903 Decision to Fully Remove Loose Parts Monitoring Sys from Svc.Visual Insp of Core Spray Clamp Demonstrated No Degradation

ML20137A416
Person / Time
Site:	Vermont Yankee
Issue date:	11/19/1985
From:	Vassallo D Office of Nuclear Reactor Regulation
To:	Capstick R VERMONT YANKEE NUCLEAR POWER CORP.
References
NUDOCS 8511250492
Download: ML20137A416 (3)

Text

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November 19, 1985 Docket No. 50-271 DISTRIBUTION Docket _ File.

NRC PDR Local PDR

! ORB #2 Reading HThompson Mr. R. W. Capstick SNorris Licensing Engineer VRooney Vermont Yankee Nuclear Power Corporation ELJordan 1671 Worcester Road BGrimes Framingham, Massachusetts 01701 JPartlow OELD/ACRS (10)

Dear Mr. Capstick:

Gray File BLiaw S*JBJECT: VIBRATION AND LOOSE PARTS MONITORING SYSTEM Re: Vermont Yankee Nuclear Power Station References 1. Letter, VYNPC to USNRC, WVY 80-164, dated 12/1/80, Results of Core Spray Sparger Inspection

2. Letter, USNRC to VYNPC, dated 1/15/81, Core Spray Sparger Program

3. Letter, VYNPC to USNRC, FVY 82-9, dated 2/4/82, Core Spray Sparger Clamp / Vibration and Loose Parts Monitoring System

4. Letter, VYNPC to USNRC, FVY 85-50, dated 9/3/85, Vibration and Loose Parts Monitoring System By letter dated September 3,1985 (Reference 4) vou informed us that you did not plan to replace the loose parts monitoring system at Vermont Yankee when it is removed to facilitate replacement of recirculation and residual heat removal system piping during the current pipe replacement outage. You stated that replacement parts are unavailable for the loose parts monitoring system, and that the system has degraded to the point that it no longer serves a useful function.

By letter dated December 1, 1980 (Reference 1) you proposed a one year monitoring program using the loose parts monitoring system as an adjunct to core spray sparger repairs and inspection, following which you would reevaluate changes to the loose parts monitoring program. By letter dated February 4,1982 (Reference 3), in response to Reference 2, you reported the results of your one yeer monitoring program and informed us that:

(1) Audible channel checks will continue to be performed on a daily basis, (2) No major maintenance or equipment replacement will be performed.

The Vibration and Loose Parts Monitoring System was installed as a prototype system and does not reflect state of the art technology. Uncertain future regulation and evolving technology does not at this time justify any major expenditures.

0511250492 B51119 PDR ADOCK 05000271 P PDR

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'By letter dated October 21, 1985 you supported your proposed removal of the loose parts monitoring system by informing us that the visual inspection of j the core spray clamp, conducted during each refueling outage including the present outage, has demonstrated no degradttion of the core spray clamp.

Due to the fact that there has been no degradation of the core spray clamp, we accept your decision to fully remove the loose parts monitoring system from service.

n Sincerely, j Original signed by/

Domenic B. Vassallo, Chief Operating Reactors Branch #2 Division of Licensing cc:

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Mr. R. W. Capstick Vermont Yankee Nuclear Power Corporation l Vermont Yankee Nuclear Power Station cc:

Mr. W. F. Conway W. P. Murphy, Vice President &

President & Chief Executive Officer Manager of Operations Vermont Yankee Nuclear Power Corp. Vermont Yankee Nuclear Pcwer Corp.

I R. D. 5, Box 169 R. D. 5, Box 169 i Ferry Road Ferry Road Brattleboro, Vermont 05301 Brattleboro, Vernont 05301 Mr. Donald Hunter, Vice President Mr. Geral[Tarrant , Comissioner Vermont Yankee Nuclear Power Corp. Vermont fepartment of Public Service l 1671 Worcester Road 120 State Street i

Framingham, Massachusetts 01701 Montpelier, Vemont 05602 New England Coalition en Nuclear Pollution Hill and Dale Fam Public Service Board R. D. 2 Box 223 State of Vermont Putney, Vermont 05346 120 State Street Montpelier, Vermont 05602 Mr. Walter Zaluzny Chairman, Board of Selectman Vermont Yankee Decommissioning Post Of' ice Box 116 Alliance Vernon, Vermont 05345 Box 53 Montpelier, Vermont 05602-0053 J. P. Pelletier, Plant Manager Vermont Yankee Nuclear Power Corp.

Post Office Box 157 Resident inspector Vernon, Vemont 05354 U. S. Nuclear Regulatory Comission Raymond N. McCandless Post Office Box 176 Vernon, Verment 05354 Vemont Division of Occupational A Radiological Health Vermont Public Interest Administration Building Research Group, Inc.

10 Baldwin Street 43 State Street Montpelier, Vemont 05602 Montpelier, Vermont 05602 Honorable John J. Easton Thomas A. Murley Attorney General Regional Administrator l

State of Vermont Region I Office 109 State Street U. S. Nuclear Regulatory Corrission Montpelier, Vermont 05602 631 Park Avenue King of Prussia, Pennsylvania 10406 John A. Ritscher, Esquire Ropes & Gray 225 Franklin Street Boston, Massachusetts 02110

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