ML19254F621
| ML19254F621 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 11/01/1979 |
| From: | Stello V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Gossick L NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO) |
| References | |
| NUDOCS 7911160091 | |
| Download: ML19254F621 (2) | |
Text
- -
y arg
?
[
UNITED STATES y '$. s-fj NUCLEAR REGULATORY COMM SSION i.GrA E
WASHINGTON, D. C. 20555 Y
9 MEMORANCJM FOR:
Lee V. Gossick, Executive Director for Operations FROM-Victor Stello, Jr., Director, Office of Inspection and Enforcement
SUBJECT:
ORAFT TEKNEKRON REPORT - ANALYSIS OF THE FIRST 18 MONTHS OF LICENSED OPERATION OF BABC0CK & WILCOX PLANTS Teknekren 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 te:hnique for analyzing causally linked events.
Teknekron performed a two chase study using this technique which has been previously reported in NURE3/:R 0110 (Phase I) and NUREG/CR 0979 (Phase II).
The results of Phase I were used as one of the three trial methods for Licensee Regulatory Perfo~rmance Evaluation (LRPE) attempted by the IE staff in 1977 and 1978.
The nest recent Teknekron study, the results of which are summarized in the enclosec report, is a part of a continuing effort by the IE staff to develop an effec.ive program for LRPE.
.Several approaches to I.RPE were attempted 3,
previcasly and the results were made available to tne puulic in November 1978.
At tnat time it was reported that each of the three approaches attempted (statistical treatment of nonccmpliance history, ratings by regional in:;pectors, ard anal sis of causally linked events) had strengths and weaknesses, but no
/
single rethod was favored by the IE technical staf f.
Fcilowirg the Three Mile Island accident, Teknekron was requested to perform a stucy of operating reactor s with B&W nuclear steam supply systems to determine if any farther 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.
CCNTACT:
H. D. Thornburg, IE 49-28484 7
6 026 D**D
- ]D' nl w 3u S N
=
- 7 91116 0 O f /
i
2-
.- craft report of the results of this most recent effort by Teknekron is enclosed.
Although we have not yet completed our staff review of the report, i t is forwarded in its present draft form because of the potentici for cuslic interest in this matter.
." - L a c;;
'i: o : c, ~e. s'.' ? " ',- =?
so_,
~
Victor Stello, Jr.
Director Office of Inspection and Enforcement
Enclosure:
As s ated
- istributicn:
- nairman Hencrie ACRS
- 0--issioner Gilinsky MPA Carmissioner Kennecy IP Cormissioner Bracforc SD Co missicner Anearne NMSS V. Gossick, ECO RES 5-i-h, E07 Regional irectors Rehr, ECO Divisi Directors CCA PDR ELJ
'R*
5E:Y S elic, IE
- . Thocoson, IE
. Tnornburg, !E 716 027 OCA 10/ /79 c;5M Office RCI A'0DjlE D:IE ELD ECO
':'2*/79 Surname HDThornburgg<' GCGower CThompson VStello 10/2 ~/79 10/p//79 10/f'779 10/ /79 10/ /79 10/ /79 J05 N Cate mm D
O b
c3 1
==
Qy Qy QW
.