ML20125D619
| ML20125D619 | |
| Person / Time | |
|---|---|
| Issue date: | 11/02/1979 |
| From: | Stello V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Moffett T HOUSE OF REP., GOVERNMENT OPERATIONS |
| References | |
| NUDOCS 8001140528 | |
| Download: ML20125D619 (2) | |
Text
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The Honorable Toby Moffett, Chairman Succommittee on Environment, Energy and Natural Resources Committee on Government Operations
' United States House of Representatives Washington, D. C. ,20515
Dear Mr. Chairman:
Teknekron Research, Inc. was requested by the IE staff to perform a study of operating nuclear power plants with B&W nuclear steam supply systems using their technicue for analyzing causally linked events. Teknekron performed a two :hase study using this technique which has been previously reported in
.4URE0/CR 0110 (Phase I) and NUREG/CR 0979 (Phase II). The 'results of Phase I were used as one of the three trial methocs for Licensee Regulatory Performance Evaluation (LRFE) attempted by the IE staff in 1977 and 1978.
The cost recent Teknekron study, the results of which are summarized in the enciesed report, is a part of a continuing effort by the IE staff to develop an effective program for LRPE. _ Several acproaches to LRPE were attempted previously and the results were made available 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, an analysis of causally linked events) had strengths and weaknesses, but no single method was favored by the IE technical staff.
Felicsing the Three Mile Island accident, Teknekron was requested to perform a study of operating reactors with S&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 reportec through Licensee Event Reports (LER). The importance of evaluating operating experience is emphasized as a lesson learned from the Three Mile Island accident. ;
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2 A craft recort of the results of this most recent effort by Teknekron is >
sn:1: sed. Although he have'not yet completed cur staff review of the report, it is # rwarded in its present draft form because of the potential for public
'nteres-:in this matter.
Sincerely, N $E 1:41 ! g.b.; ;,- -
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U,J Victor-Stello,Jr.iJ Director
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