ML20206R966

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Forwards Insp Rept 50-423/86-18 on 860520-0623.No Violation Noted.Concern Re Isolation of Both Porvs,Removing One Defense Against Overpressurization & Preventing Code Safety Valve Challenges,Noted
ML20206R966
Person / Time
Site: Millstone Dominion icon.png
Issue date: 06/27/1986
From: Wenzinger E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To: Opeka J
NORTHEAST NUCLEAR ENERGY CO.
Shared Package
ML20206R970 List:
References
NUDOCS 8607070270
Download: ML20206R966 (2)


See also: IR 05000423/1986018

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$27M

Docket / License: 50-423/NPF-49

Northeast Nuclear Energy Company

ATTN: Mr. John F. Opeka

Senior Vice President-Nuclear

Engineering and Operations Group

P,0. Box 270 '

Hartford, Connecticut 06101-0270

Gentlemen:

Subject: Millstone 3 Routine Inspection 50-423/86-18 (5/20/86-6/23/86)

This transmits the report of the above subject inspection by Messrs. J. Shedlosky

and F. Casella of this office. The inspection. findings have been discussed with

Messrs. W, Romberg and J. Crockett of your staff.

No violations were identified during this inspection and no reply to this letter

is required.

Although the results of our inspection have not disclosed any unacceptable condi-

tions, I am concerned about the Power Operated Relief Valves (PORV). No require-

ments are being violated and we have found your corrective actions and plans to

be genarally satisfactory. Nonetheless, the. isolation of both PORVs effectively

removes one line of defense against overpressurization and prevention of code

safety valve challenges. I believe that you should take whatever positive steps

are needed to assure that this problem is corrected as soon as practicable.

Thank you for your cooperation.

Sincerely

ADel 31

80ed &

Edward C. Wenzinger, Chief

Projects Branch No. 3

Division of Reactor Projects

Enclosure: NRC Region I Inspection Report 50-423/86-18

cc w/ enc 1:

V. Papadopoli, Construction Quality Assurance Supervisor

E. R. Foster, Director of Generation Construction

W. J. Mroczka, Vice President, Nuclear Operations

D. O. Nordquist, Manager of Quality Assurance

R. T. Laudenat, Manager, Generation Facilities Licensing

W. D. Romberg, Station Superintendent

Public Document Room (PDR)

Local Public Document Room (LPDR)

Nuclear Safety Information Center (NSIC)

NRC Senior Resident Inspector

State of Connecticut

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Region I Docket Room (with concurrences)

Management Assistant, DRMA (w/o encl)

DRP Section Chief

L. Prividy, RI BV-2

T. Rebelowski, SRI Millstone 1&2

B. Doolittle, LPM, NRR

R. Keimig, DRSS.

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