ML20211P426

Forwards Insp Rept 50-344/86-19 on 860429-0616.No Violation Noted.Util Actions to Resolve Issues Surrounding Failure of Steam Generator Snubbers & Restrained Thermal Growth of RCS Inadequate

ML20211P426
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	07/07/1986
From:	Chaffee A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
To:	Withers B PORTLAND GENERAL ELECTRIC CO.
Shared Package
ML20211P430	List: IR 05000344/1986019 ML20211P426
References
TAC-61405, NUDOCS 8607230230
Download: ML20211P426 (2)

See also: IR 05000344/1986019

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Docket No. 50-344

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Portland' General Electric Company

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121 S..W. Salmon Street

Portland, Oregon 97204

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Attentio'n:

.Mr. Bart D. Withers

Vice President Nuclear

Gentlemen:

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Subject: NRC Inspection of the Trojan Nuclear Plant

This refers to the inspection conducted by Mr. S. A; Richards and Mr. G. 'C.

Kellund of this office on April 29 - June 16, 1986 of activities. authorized by'

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NRC License No. NPF-1, and to the discussion of our findings held by Mr.

Richards and Mr. Kellund with Mr. Orser and other members of your staff

periodically during the inspection.

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Areas examined during this inspection are described in the enclosed inspection

report. Within these areas, the inspection consisted of selective

examinations of procedures and representative records, interviews with

. personnel, and observations by the inspectors.

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No violations of NRS requirements were identified within the. scope of this

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inspection.

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As discussed in paragraph 7 of this report, we considered your staff's initial

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actions to resolve- the issues surrounding the:failu~re of: steam generator

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~ hydraulic snubbers- and resulting restrained thermal growth' of the reactor.

_ coolant system to be inadequate. Substantial interaction between the NRC

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staff.and your staff was necessary to resolve this issue. Recent deficiencies

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identified with the control room emergency ventilation system and the

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containment spray chemical addition system serve to further reinforce the

- necessity of aggressively pursuing apparent deficiencies .until a firm

understanding of the root cause of problems is-' gained. Your letter of June

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20, 1986,- in which you describe' actions being implemented to improve

performance in this area, appears to be a step in the right direction. We

encourage you to ensure -that top levels of management become active

participants in the actions-you have stated in your letter. We anticipate

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discussing these actions with you in the near future.

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~In accordance with 10 CFR 2.790(a), a copy of this letter and the enclosures

will be placed in the NRC Public Document Room.

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8607230230 860707

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Should you have any questions concerning this inspection, we will be glad to

discuss them with you.

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Sincerely,

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A. E. Chaffee, Chief

Reactor Projects Branch

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Enclosure:

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Inspection Report No. 50-344/86-19

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cc'w/ enclosure:

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W. S. Orser

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J..W. Durham, Esq.', PGE

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State of Oregon (Dixon)

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Project Inspector

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Resident Inspector

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B. Faulkenberry.

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