RS-17-119, Byron, Units 1 and 2 - Full Action Request Report AR 1531420, No Actions Tracking Update to Calculation 3C8-0282-001, Redacted

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Byron, Units 1 and 2 - Full Action Request Report AR 1531420, No Actions Tracking Update to Calculation 3C8-0282-001, Redacted
ML17255A832
Person / Time
Site: Byron  Constellation icon.png
Issue date: 07/01/2013
From:
Exelon Generation Co
To:
Office of Nuclear Reactor Regulation
Shared Package
ML17255A838 List:
References
RS-17-119 AR 1531420
Download: ML17255A832 (5)
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Text

Go Back Print l New Search l Home AR Number: 01531420 Linked ARs Aff Fac: ByronAR Type: CRStatus:APPROVEDAff Unit: 00Owed To: A8852CAPDue Date:12/29/2017Aff System:

MSEvent Date:07/01/2013 CR Level/Class:

4/DDisc Date:07/01/2013 How Discovered:

H02 Orig Date:07/01/2013 Action Request Details

Subject:

NO ACTIONS TRACKING UPDATE TO CALCULATION 3C8-0282-001

Description:

Originator:

Supv Contacted: Condition

Description:

IR 1284054 had previously identified that calculation 3C8-0282-001required update to strengthen inputs and assumptions. Actions generatedfrom that IR tracked funding to update the calculation and have beenclosed out. An action to track the actual calculation revision was notcreated. Revision of this calculation is now part of the HELB effort andit is desired to have a tracking item in CAP for the update. This IR willgenerate a new action for tracking the update to the calculation.This is a common By/Bw calculation.Immediate actions taken:

Reviewed previous IRs 1284054, 789344, 653093, and 620080 and associated actions.Recommended Actions:

Create an action for A8852NESDM to track revision of calculation3C8-0282-001. Recommended due date is 08/16/2013What activities, processes, or procedures were involved?Review of documentation supporting HELB RAI response.Why did the condition happen?CAP actions to obtain funding were completed and new actions were notgenerated. The calculation update is being tracked outside of the CAP process.What are the consequences?No consequences since the calculation update is being worked on as part of the HELB project.Were any procedural requirements impacted?

NoWere there any adverse physical conditions?

NoneList of knowledgeable individuals:Page 1of 5 Full Action Request Report 8/31/201 7http://eamgenco.ceco.com/cap/servlet/ReportFullARServlet Repeat or similar condition?

NoOperable Basis:This IR describes an admin issue, therefore no Operability Basis statementis required.

Reportable Basis:Not reportable since no Reportability Manual threshold is exceeded.Functional Basis:

This is not a Functionality issue so no Functionality Basis statement is required.Reviewed by: 07/02/2013 02:27:15 CDTReviewer Comments:Shift review for operability, reportability, functionality complete.SOC Reviewed by: 07/02/2013 09:23:45 CDTSOC Comments:

Close to actions created 7/2/13 SOC 070213Page 2of 5 Full Action Request Report 8/31/201 7http://eamgenco.ceco.com/cap/servlet/ReportFullARServlet Assign #: 01 AR #: 01531420 Aff Fac: ByronAssign Type:TRKG Status:COMPLETEPriority:Assigned To:Due Date:07/06/2013Schedule Ref:Prim Grp:ACAPALLOrig Due Date:Unit Condition:Sec Grp:

Assignment DetailsSubject/Description:NO ACTIONS TRACKING UPDATE TO CALCULATION 3C8-0282-001 Assignment CompletionIn Progress Notes:Completion Notes:Page 3of 5 Full Action Request Report 8/31/201 7 http://eamgenco.ceco.c om/cap/servlet/ReportFullARServlet Assign #: 02 AR #: 01531420 Aff Fac: ByronAssign Type:ACIT Status:NTFY/ASG Priority: 1Assigned To:

Due Date:12/29/2017Schedule Ref:

Prim Grp:A8852NESDMOrig Due Date:08/16/2013Unit Condition:Sec Grp: Assignment DetailsSubject/Description:Track revision of calculation 3C8-0282-001 Assignment CompletionIn Progress Notes:AT 01531420-0207/28/2016This AT is moved by one year (to 08/25/17), because the calculation OARhas not been completed yet.OAR is being performed by Braidwood Engineering for both Byron andBraidwood stations. was informed of this extension.*****************************************************

AT 01531420-02, SMDE alternate, 2/23/16. Now information?.. Byron agreeswith Bwd's methodology for pipe break modeling. So we are deferring completion by 6 months.09/02/2015Per discussion with this AT is moved to 02/26/2016.*****************************************************

AT 01531420-0203/02/2015This AT is moved by 6 months (to 9/03/15) because the OAR process has cometo a halt as a result of disagreement between Byron & Braidwood. Byron Engineering believes that a double ended pipe break needs to be considered, which results in large pressure & extensive structuralevaluation, versus Braidwood which believes a single ended break needs tobe considered. This subject is scheduled for discussion in TIM (TechnicalIssues Meeting) the week of 3-2-15. was informed of this extension.*****************************************************AT 01531420-0209/03/2014This AT is moved by 6 months (to 3/03/15) because the OAR process has cometo a halt as a result of disagreement between Byron & Braidwood. ByronEngineering believes that a double ended pipe break needs to be considered(results in large pressure & extensive structural evaluation) versusBraidwood which believes a single ended break needs to be considered. were informed of this extension.*****************************************************Page 4of 5 Full Action Request Report 8/31/201 7http://eamgenco.ceco.com/cap/servlet/ReportFullARServlet 06/03/2014S&L has not completed revision to calculation 3C8-0282-001 yet.Therefore, this task is extended by 3 months to 9/03/14.

wasinformed of this extension.*****************************************************03/03/2014S&L has not completed revision to calculation 3C8-0282-001 yet.Therefore, this task is extended by 3 months to 06/03/14.

wasinformed of this extension.

                                                                                                          • 11/22/2013S&L has not completed revision to calculation 3C8-0282-001 yet.Therefore, this task is extended by 3 months to 03/03/14. were informed of this extension.*****************************************************08/14/2013S&L has not completed revision to calculation 3C8-0282-001 yet.Therefore, this task is extended to 10/01/13. were informed of this extension.Completion Notes:See In-Progress Notes Page 5of 5 Full Action Request Report 8/31/201 7http://eamgenco.ceco.com/cap/servlet/ReportFullARServlet
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