ML19256E783
| ML19256E783 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 11/01/1979 |
| From: | Stello V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Kemeny J PRESIDENT'S COMMISSION ON THE ACCIDENT AT THREE MILE |
| Shared Package | |
| ML19256E784 | List: |
| References | |
| CON-NRC-05-78-302, CON-NRC-5-78-302 NUDOCS 7911150208 | |
| Download: ML19256E783 (2) | |
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UNITED STATES
'.*[E W
s-g7 i NUCLEAR REGULATORY COMMISSION T-
-.,i e d C WASHINGTON, D. C. 20555 l
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Ju j0ne a:le J. G. Kereny, Chairman
-res cent's cr.missica on the
-::i e t a; Three Mile Island 21: M S reet, N. W.
aashin;t:n, C. C.
2037
- ear M. Cnairman:
Te<nekron Research, Inc. was requested by the IE staff to perform a study of coerating nuclea, power plants with B&W nuclear steam supply systems using
- neir techr.icue for analyzing causally linked events.
Teknekron performed a
- hase study using tnis technique whicn has been previously reported in t a':
hu:E3/ R 011C (PP.ase I) and NUREG/CR 0979 (Phase II).
The results of Phase I
-r e use: as one of the three trial methocs for Licensee Regulatory Performance Eval _ati:n (_RPE) attetoted by the IE staff in 1977 and 1978.
Tne Ost recent Teknekron study, the results of which are summarized in the e ici: sed repcrt, is a part of a continuing effort by the IE staff to develop an e'fe:-ive program for LRPE.
Several a:proaches to LRPE were attempted
- revio.:s'y ar.d tr.e results were made avail.able to the public in November 1978.
!t t a.. ice it was reported that each of the three approaches attempted (sta-ist' cal treatrert of noncompliance history, ratings by regional inspectors, analysis of causally linked events) had strengths and weaknesses, but no an sir;'s Tisthoc was fasorec by the IE technical staff.
- 0'i: win; tne Three Mile Island accident, Teknekren was requested to perfor.. a
. Of operating reacters witn 3&W nuclear stea.:. supply systems to determine it :.
" a y f.rtner safet; insights could be gained by the analysis of operating exce-ience at these facilities as reported through Licensee Event Reports
('ER
-ne 'mportance of evaluating operating experience is emphasized as a 'ess:., learned frot tne Tnree Mile Island accident.
13361245 7 0113 50 g gg
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., craft report of the results of this most recent effort by Teknekron is e.:lesed.
Althou;h we have net yet '.cmpleted our staff review of the report, it is forwarded in its presen. craft form because of the potential for public interest in this matter.
Sirncerely,
- -i-in
- ;..c: - -;
_Qo;;E Ml; -
' lictor Stello, Jr.
Director Office of Inspection and Enforcement En:lesure:
As stated
- istribution:
- nairman Hencrie ACR$
- o missicner Gilinsky MPA
- c.missicner Kennedy IP
- c. missicner Bracforc SD lc.missicner Ahearne NMss V. Gossick, EC]
RES S-ith, E00 Regional Directors Rehm, EDO Divisi Directors
- CA PDR ELD t, R.:.
5ECY
'i. Stello, IE
<.PL : S'4 Office HDThornberg f.Lg*iower
'.0.2"/79 Surname 0 Thompson VStello
.' E N Cate 10/- /79 10/#/7910/.(/79 10/ /79 10/ /79 10/ /79 1336'246