ML19312A276
| ML19312A276 | |
| Person / Time | |
|---|---|
| Issue date: | 11/02/1979 |
| From: | Stello V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Hart G SENATE, ENVIRONMENT & PUBLIC WORKS |
| References | |
| NUDOCS 8001140522 | |
| Download: ML19312A276 (2) | |
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'4-UNITED STATES i-NUCLEAR REGULATORY CCMMISSION h. ' "... // 7-
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'ne -orora,le Ga j Hart, Chairman Iu:::r.i. tee or 'v: lear Regulat'oa
- -.'ttes :n E.e' c cent and Du:l': Works
'n'tes Sta.er Serate aasn'ngt:n, :. C.
2C510
- ear Mr. Cna'rr.a. :
'e<nskrer. Resear:n, Inc. was etaeste:: by the IE staff to perform a study of
- cerating nu:les power plants ai-h B&W nuclear steam supply systems using neir te:hnicae for analyzing causally linked events. Teknekron performed a twc :hase st.d;.. sing this te:hnicue which has been previously reported in
'#EGiCR 011C (Prase I) and fuREG.'CR 0979 (Phase II). The results of Phase I e e ese: as :re of tne tnres trial methods for Licensee Regulatory Performance Ecal.a-i:n (.UE; attempted t/ tna IE s.aff in 1977 and 1978.
~ na rest re:Ent eknekron stu:y, -he resuits of wnich are semnarized in the in:1: sed rep:rt, is a part of a c:ntinuing effort by the IE staff to develcp an e#fe:th e cre; as for LR.2E.
Several a;proa:hes to LRFE were attempted
- rev'ous'y a-d t e results we e made available to the public in November 1975.
At t a tire it '.as reported -hat each of the three approaches attempted
- s atisti:a1 trea: rent of nor:o p:ian:e history, ratings by regional inspectors, analysis :' causally linked e.ents) had strengths and weaknesses, but n:
an:
ri.;'e metto: was favored by the E tecnnical staf f.
- oll: sing the Th*te Mile Isla-d a::ident, Teknekron was requested to perform a st.d cf c e a,iq reacters k'tn E!W nuclear steam supply systems to determine
'f a.y f;r-hs-s!fety insights :c.;ld be gained by the analysis of operating exte-ien e a. tasse facilities as rep 0rted through Licensee Event Reports JER,.
~he ' :::o.ance of evaluating operating expt:. ience is emphasized as t 'ess:n lea,e: ' rot the Tnrae Mile Island accident.
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- :*sf. reco-of the results of this cost recent effort by Teknekron is t.:i: set.
Altrocgh we have n:t yet completed our staf f review of the report,
't is fo arcec in its preser; craft form because of the potential for puolic
'n e est in inis =atter.
Sincerely,
- sir.al ais. ed ':7 7:::::Stetto, -
Victor Stello, Jr.
Director Office of Inspection and Enforcement inclestre:
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.. G:ssi:k, EE" RES Sriin E2C Regional Directors
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