ML19210E908
| ML19210E908 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 11/08/1979 |
| From: | Stello V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Arnold METROPOLITAN EDISON CO. |
| References | |
| NUDOCS 7912130184 | |
| Download: ML19210E908 (2) | |
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.70 UNITED STATES
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NOV 8 1979
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g Docket.Nos. 50-289, 50-320 I,
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Metropolitan Edison Company P. O. Box 542 Reading, PA 19603
Dear Mr. Arnold:
Teknekron Research, Inc. was rec; Jested by the IE staff to perform a study of operating nuclear power plants with B&W nuclear steam supply systems using their technique for analyzing causally linked events.
Teknekron performed a two phase study using this technique which has been previously reported in NUR "/CR 0110 (Phase I) and NUREG/CR 0979 (Phase II).
The results of Phase I were used as one of the three tri?1 methods for Licensee Regulatory Performance Evaluation (LRPE) attempted by the IE staff :n 1977 anJ 1978.
The most recent Teknekron stucy, the results of which are summarized in the enclosed report, is a part of a continuing effort by the IE staff to develop an effective program for LRPE.
Several approaches to LRPE were attempted previously and the results were made uvailable to the public in November 1978.
At that time it was reported that each of the three approaches attempted (statistical treatment of noncompliance history, ratings by regional inspectors, and analysis of: causally linked events) had strengths and weaknesses, but no single method was favored by the IE technicEl staff.
Follcwing the Three Mile Island accident, Teknekron was requested to perform a study of operating reactors with B&W nuclear steam supply systems to determine if any further safety insights could be gained by the analysis of operating experience at these facilities as reported through Licensee Event Reports (LER).
The importance of evaluating operating experience is emphasized as a lesson learned from the Three Mile Island accident.
1550 002 b
7912130
. A draft report of the results of this most recent effort by Teknekron is enclcsed for your information.
Although we have not yet completed our staff review of the report, it is forwarded in its present draft form because of potential public interest and because your facility is discussed.
Sincerely, Victor Stello, Jr.
Director Office of Inspection and Enforcement
Enclosure:
As stated Distribution:
Chairman riendrie Commissioner Gilinsky Commissioner Kennedy Commissicner Bradford Commissioner Ahearne L. V. Gossick, EDO R. Smith, EDO T. Rehm, EDO 1550 OCA ELD NRR SECY V.
Stello, IE D. Thomoson, IE H. D. Thornburg, IE OCA 10/ /79 WPU:SM Office RCI ,
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