ML12340A590

Official Exhibit - RIV000111-00-BD01 - Hopenfeld, Demonstration of Flawed Presentation of Checworks Data

ML12340A590
Person / Time
Site:	Indian Point
Issue date:	06/29/2012
From:	Hopenfeld J Riverkeeper
To:	Atomic Safety and Licensing Board Panel
SECY RAS
References
RAS 22866, 50-247-LR, 50-286-LR, ASLBP 07-858-03-LR-BD01
Download: ML12340A590 (3)

Text

Dr. JORAM HOPENFELD Demonstration of Flawed Presentation of CHECWORKS DataFigure 1: A plotselected at random

• from an Entergy CHECWORKS Report, showing how the data is presented by Entergy:

• Excerpted from RIV00016A (CSI Technologies, Inc., Indian Point Unit 2 CHECWORKS FAC Model, Calculation No. 050714b-01, Revision 1, September 12, 2006, Batestamp IPEC00168480).

RIV000111 Submitted: June 29, 2012 United States Nuclear Regulatory Commission Official Hearing Exhibit In the Matter of

Entergy Nuclear Operations, Inc. (Indian Point Nuclear Generating Units 2 and 3)

ASLBP #:07-858-03-LR-BD01 Docket #:05000247 l 05000286 Exhibit #:

Identified:

Admitted: Withdrawn:

Rejected: Stricken: Other: RIV000111-00-BD01 10/15/2012 10/15/2012 2 l Page Figure 2a:The non-conservative area of Figure 1 is re-plotted for comparison with Figure 3b below. Predicted wear on the y axis, measured wear on the X-axis. Top line is the LCF=1.060 line:LCF Line-50% Predicted wear (mils 3 l Page Figure 2bShowing how many more non-conservative points are not bounded by the 50% when the measured data is plotted on the Y axis and the predicted data on the x axis:Measured wear (mils) 50% LCF Line

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