05000336/LER-1979-004, Forwards LER 79-004/03L-0

Forwards LER 79-004/03L-0

ML19263C987
Person / Time
Site:	Millstone
Issue date:	03/08/1979
From:	Opeka J NORTHEAST UTILITIES
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19263C988	List: 05000336/LER-1979-004, Forwards LER 79-004/03L-0 05000336/LER-1979-004-03, /03L-0 on 790130:reactor Protection Sys Reactor Coolant Loop Tests Exceeded Tech Spec Response Time.Cause Unknown.Resistance Temp Detector Will Be Replaced During Spring 1979 Outage
References
NUDOCS 7903200399
Download: ML19263C987 (1)

LER-1979-004, Forwards LER 79-004/03L-0

Event date:
Report date:
3361979004R00 - NRC Website

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k Lt 2 :; '.,' :.':..':::l;l MP 3007 Mr. Boyce H. Grier Director, Region I Office of Inspection and Enforcement U. S. liuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsyivania 19406

Reference:

Facility Operating License fio. DPR-65 Docket f;o. 50-336 Reportable Occurrence f;o. 79-04/5L-0

Dear Mr. Grier:

This letter forwards Licensee Event Report 79-04/3L-0, required to be submitted within thirty days pursuant to Millstone Unit 2 Appendix A Technical Specifications, Section 6.9.1.9.b.

The report concerns operation in a degraded mode per Specification 3.3.1.1 due to a failure of one reactor protection system temperature detector to meet response time requirements. As noted in the report, the test data was received on 1/30/79, however, the test method utilized was not accepted by fbrtheast

' Utilities until 2/28/79. An additional three copies of the report are enclosed.

Yours truly, y hly N

7 F. Opeka Station Superintendent Millstone fluclear Power Station JF0/ECF/llm

Attachment:

LER 79-04/3L-0 Director, Of fice of Inspection and Enforcement, Washington,.D.C.

cc:

(30)

Director, Office of itanagement Information and Program Controls, Washington, D.C. (3)

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