ML080250488

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Apparent Cause Evaluation Content
ML080250488
Person / Time
Site: Byron, Braidwood  Constellation icon.png
Issue date: 09/13/2002
From:
- No Known Affiliation
To:
Office of Nuclear Reactor Regulation
References
FOIA/PA-2008-0046
Download: ML080250488 (2)


Text

ke I e A ý'-e-5/6/02 D. Eder - replaced Att C "amag preliminary report" with amag final report and added 2 corrective actions per T. Roberts request.

reopened ace to allow updating prior to MRC presentation (ADB (5/3/02) 03/15/02 - M.Page - Due date extension to 4/19/02 approved by the MRC on this date.

Tom Roberts also directed re-assignment of this ACE to Dave Eder.

02/05/02 PLEASE SEE THE ACTION REQUEST DESCRIPTION FOR A COPY OF THE CR. B. Strickland AR 91771 Owed to A8850CAP ACE to document the results of the independent review and any corrective actions required from the independent review performed in ACIT above. If human performance related, contact Mark Rasmussen for guidance.

Resp Group: A8830EM Due Date: 3/15/02 (ADB 1/29/02)

Apparent Cause Evaluation Content "

1.

Title:

Unexplained Differences Between Byron and Braidwood

2. Condition Report/AR #: 91771
3. Event Date/Event Time: 1/30/02 07:20
4. Station/Unit(s): Byron Unit 1
5. Investigator(s) :

Independent review performed by MAROG (Kennet Square Engineers)

Chris Brennan - Skip Denny AMAG review performed by AMAG personnel, Jeff Drowley, David Eder Calorimetric program review performed by Don Hildebrant and David Eder Calorimetric program constant review performed by David Eder Spreadsheet tool review performed by Don Hildebrant and David Eder

9/13/02 D. Eder - discussed with J. Drowley on 9/12. At that time his only comment was there was a typo in my narration. The typo was that I incorrectly listed the difference between the 2 AMAG systems as 0.8% different, while they were actually 0.7% different. This was corrected. I was not provided any feedback by any other parties, so this will be closed.

09/11/02 - M.Page -ACE re-opened to incorporate changes after further discussion with Cantera Engineering.

09/04/02 - M.Page - MRC approved extension to Friday (09/06/02) so that additional comments may be incorporated into the ACE.

Extended one week per direction from T.Roberts. (ADB 8/26/02) 07/25/02 - R. Irby - ACE reopened to document MRC comments.

AR# & Assignment 91771-01 06/26/02 - M.Page -ACE due date discussion occurred between Tom Roberts and Station Manager and due date was extended 1 week. A one week extension would have made it due on July 4 th, so due date was actually extended to 7/9/02.

Due date extended to 6/27/02 as approved by MRC this date. (ADB 6/19/02).

Due date extended to 6/20/02. Approved by MRC (ADB 5/30/02) 5/16/02-D. Eder -

05/13/02 - M.Page -ACE re-opened to address MRC concerns. New due date for MRC is 6/3/02.