ML20153D354

Notice of Violation from Insp on 880626-0806.Violation Noted:Three of Four Reactor Protection Sys Channels for Overtemp Delta T & Overpressure Delta T Inoperable Since 1974 & Failure to Stroke Time Test Pressurizer PORVs

ML20153D354
Person / Time
Site:	Prairie Island
Issue date:	08/22/1988
From:	Axelson W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20153D351	List: IR 05000282/1988012 ML20153D349 ML20153D354
References
50-282-88-12, 50-306-88-12, NUDOCS 8809020177
Download: ML20153D354 (1)

Text

F NOTICE OF VIOLATION Northern States Power Company Docket Nos. 50-282; 50-306 As a result of the inspection conducted on ' June 26 through August 6,1988, and in accordance with the "General Policy and Procedures for NRC Enforcement Actions," 10 CFR Part 2, Appendix C (1988), the following violations were identified:

1.

Technical Specification 3.5 requires that three of four reactor protection system (RPS) channels be operable for the reactor power operation.

Contrary to the above, on July 26, 1988, it was determined that Unit 2 had three out of four RPS channels for overtemperature Delta T and overpressure delta T inoperable since 1974 and that Unit I may have had two of four channels inoperable during maintenance and surveillance testing.

This is a Severity Level IV violation (Supplement 1).

2.

Technical Specifications Paragraph 4.2.A states in part that "inservice inspection of ASME Code Class 1, Class 2, and Class 3 components shall be performed in accordance with Section XI...."

Included in Section XI is a requirement for the stroke time testing of applicable valves.

Contrary to the above, pressurizer power operated relief valves (PORV) were not included as part of ASME Section XI and therefore were not stroke time tested until very recently.

This is a Severity Level IV violation (Supplement 1).

Pursuant to the provisions of 10 CFR 2.201, you are required to submit to this office within thirty days of the date of this Notice a written statement of l

explanation in reply, including for this violation:

(1) corrective action taken and the results achieved; (2) corrective action to be taken to avoid l

further violations; and (3) the date when full ccmpliance will be achieved.

Consideration may be given to extending your response time for good cause shown.

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W.'L. Axelson, Chief Dated AUC 2 21999 Projects Branch 2 8809020177 880822 PDR ADOCK 05000282 L

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