ML20154N427

Forwards Insp Rept 50-271/86-08 on 850209-27.Need for Appropriate Enforcement Action Re Standby Liquid Control Sys Failure Will Be Subj of Separate Correspondence

ML20154N427
Person / Time
Site:	Vermont Yankee
Issue date:	03/11/1986
From:	Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:	Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
Shared Package
ML20154N432	List: ML20154N427 ML20154N437
References
NUDOCS 8603170322
Download: ML20154N427 (2)

See also: IR 05000271/1986008

Text

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MAR 111986

Docket No. 50-271

Vermont Yankee Nuclear. Power Corporation

ATTN: -Mr. Warren P. Murphy

Vice President and Manager of Operations

RO 5, Box 169

Ferry Road

Brattleboro, Vermont 05301

Gentlemen:

Subject: Inspection Report No. 50-271/86-05

This refers to the special inspection conducted by Messrs. W. J. Raymond and

G. W. Meyer of this office on February 9-27, 1985, at the Vermont Yankee Nuclear

Power Station, Vernon, Vermont. . The inspection was performed as a result of the

Standby Liquid Control (SLC) system test failure on February 8, 1986. The inspec-

tion findings were' discussed with Mr. J. Pelletier of your staff at the conclusion

of the inspection.

Our review of the circumstances associated with the SLC system test failure indi-

cates the system was inoperable from July 11, 1984 until testing on February 8,

1986 due to an unintended change in the squib primer wiring by the vendor.- We are

concerned that your procurement program and post-installation testing program did

not detect a product change that affected the operability of a safety system. We

are also concerned with an unapproved change which you made to the squib firing

circuit..

The apparent violation identified in our review of this event is discussed in the

enclosed report. The need for and nature of appropriate enforcement action rela-

> tive to the apparent violation will be the subject of separate correspondence at

, a later time. These matters will be discussed in an enforcement conference with

} you and members of your staff scheduled for March 19, 1986. You should come to

the meeting prepared to discuss ~your understanding of these events and your planned

and implemented corrective actions,

i In accordance with 10 CFR 2.790 a copy of this letter and the enclosures will be

placed in the P'RC Public Document Room.

.

Your cooperation with us is appreciated.

4

Sincerely, g g ,

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Richard W. Starostecki, Director

Division of Reactor Projects-

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Enclosure: NRC Region I Inspect on Report No. 50-271/86-05

g/,031{0g $ 271

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. Vermont Yankee Nuclear Power 2 MAR 111986

Corporation

cc w/ enc 1:

Mr. R. W. Capstick, Licensing Engineer

Mr. W. F. Conway, President and Chief Executive Officer

Mr. J. P. Pelletier, Plant Manager

Mr. Donald Hunter, Vice President

Mr. Cort Richardson, Vermont Public Interest Research Group, Inc.

Public Document Room (PDR)

Local Public Document Room (LPDR)

Nuclear Safety Information Center (NSIC)

State of New Hampshire

Statc of Vermont

NRC Resident Inspector

bec w/ enc 1:

Region I Docket Room (with concurrences)

Management Assistant, DRMA (w/o enc 1)

DRP Section Chief

DRP Branch Chief

M. McBride, SRI, Pilgrim

H. Eichenholz, SRI, Yankee

V. Rooney, LPM, NRR

RJ: RP RI:DRP R P I I: ,

Meyer hipp y i

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3/3/S6 fp1 0 F CIAL RECORD COPY

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