ML20052B006
| ML20052B006 | |
| Person / Time | |
|---|---|
| Issue date: | 04/21/1982 |
| From: | Chilk S NRC OFFICE OF THE SECRETARY (SECY) |
| To: | Dircks W NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO) |
| References | |
| NUDOCS 8204290550 | |
| Download: ML20052B006 (2) | |
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1, NUCLEAR REGULATORY COMMISSION
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W ASHINGTON, D.C. 20555
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April 21, 1982 qs 4
OFFICE OF THE SECRETARY RECEty50
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MEMORANDUM FOR:
William J.
Dircks, Executiv Director for Operations l
FROM:
Samuel J.
Chilk, Secretar i
SUBJECT:
SECY-82 PROPOSED ADDITI TO 10 CFR 50.73 ESTABLISHING THElLICENSEE EVENT REPORT (LER) SYSTEM Attached to my memorandum to you on March 30, 1982 were Commission comments on the proposed rule which were to be included in the staten.ent of consideration when the proposed rule was published in the Federal Register.
The Commission has reconsidered those comments.
The attached revision should be included in the statement of consideration rather than the version transmitted to you on March 30, 1982.
Attachment:
As stated cc:
Chairman Palladino
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Commissioner Gilinsky Commissioner Ahearne Commissioner Roberts OGC l
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DCS - 016 Phillips R2042905SD
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PROPOSED LER RULE The Commission notes that in endorsing the proposed rule, the ACRS said:
"We believe the Proposed Rule represents a natural evolution in the state-of-the-art in data gathering,
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and we support its publication for comment.
Although subsequent experience will undoubtedly reveal ways in which the Proposed Rule snould be revised, and even perhaps replaced, we do not believe its publication should be delayed until a more advanced system is developed.
Ultimate goals for such a system include-better reporting, analysis, and evaluation of human errors and computer software errors and perhaps the development of a system for more effectively identifying precursors and system interactions."
The Commission supports the proposed rule and anticipates substantial improvements from it.
The Commission recognizes that the LER system needs revision to make reporting more consistent among licensees, to stop reporting of unimportant events, and to provide better data on significant events.
The Commission agrees with the ACRS comments that this Proposed Rule is a natural evolution.in the state-of-the-art in operational experience data gathering.
Comments are solicited at this' time,.for Commission consideration prior to issuance of the final rule, on the feasibility and desirability of improving the overall design of the data reporting system, the characteristics of such an improved system, the time and resources required to develop it, and the utility of doing so.
A more serviceable data system would have at least two dimensions, one which can be used to support case studies of specific events and a second which will support multivariate, multi-case analyses.
Specifically, the Commission is interested in receiving comments on a more diversified system that would make the LER even a more useful tool for the analysis of operational experience.
Of particular interest would be potential improvement to aid in the analysis of trends and patterns l
that may identify precursors of major incidents.
For example, the Commission believes that a more diversified operational data gathering system might involve reporting data recorded directly from the event rather than relying on a narrative i
description of the event.
With increased emphasis on techniques l
of reporting and storage of event data, the technical record l
associated with the event would be enhanced with a corresponding potential for increasing the effectiveness of the use of statistical techniques to identify trends and patterns of operational experience.
Such a data system would permit the use of more sophisticated statistical procedures to identify I
signals that may be present only in the aggregate and are essential to the understanding of accident precursor conditions.
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