ML17006A014

Enercon - Part 21 - Notification-Design Basis Errors Using Flo-2D Software

ML17006A014
Person / Time
Site:	Perry
Issue date:	12/13/2016
From:	Eggemeyer N Enercon
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML17006A014 (6)

Text

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1211312016 U.S. Nuclear Regulatory Commission Operations Center Event Report Pagel Part 21 (PAR) Event# 52394 Rep Org: ENERCON Notification Date I Time: 11/23/2016 11 :56 (EST)

Supplier: ENERCON Event Date I Time: 09/28/2016 (EST)

Last Modification: 12/13/2016 Region: 1 Docket#:

City: KENNESAW Agreement State: Yes County: License#:

State: GA NRC Notified by: NICK EGGEMEYER Notifications: JAMES DWYER R1DO HQ Ops Officer: MARK ABRAMOVITZ AARON McGRAW R3DO Emergency Class: NON EMERGENCY PART 21/50.55 REACTORS EMAIL 10 CFR Section:

21.21 (a)(2) INTERIM EVAL OF DEVIATION PART-21 NOTIFICATION - DESIGN BASIS ERRORS USING FL0-2D SOFTWARE The following report was received via e-mail:

"This letter serves as an Interim Report in accordance with 10 CFR 21.21 pertaining to a potential defect associated with a design basis calculation delivered to First Energy Nuclear Operating Company's Perry Nuclear Power Plant. Subsequent to delivering this calculation, FL0-2D software errors were identified which resulted in erroneous outputs that affect the local intense precipitation calculation. These errors were discovered on September 28, 2016, at which time, ENERCON generated a Corrective Action Report (CAR) to address the issue.

ENERCON has initiated a reevaluation of the calculation using the latest version of the software that will correct the errors in the calculation.

"An evaluation of the reportability of this issue in accordance with 10 CFR Part 21 is not able to be completed within the 60-day evaluation period due the need to verify and validate the latest version of the software and then complete all the analysis required for updating the calculation. This evaluation is being tracked by CAR 2016-0335 and will be completed no later than February 10, 2017.

"If you have any questions or need further clarifying information, please contact Nick Eggemeyer, Corporate Quality Assurance Manager, at (770) 590-2031."

• • • UPDATE AT 0910 EST ON 12/13/2016 FROM TIMOTHY CLEARY TO MARK ABRAMOVITZ***

The following update was received via e-mail:

"This letter serves as an amendment to the 10 CFR 21.21 Interim Report filed on November 23, 2016, pertaining

1211312016 U.S. Nuclear Regulatory Commission Operations Center Event Report Page 2 to a potential defect associated with a design basis calculation delivered to First Energy Nuclear Operating Company's Perry Nuclear Power Plant. Subsequent to delivery of the calculation, a standard, periodic review of the FL0-20 Pro software supplier website indicated that a new build of this software (version 16.06.16) had been issued. It replaced the software build (version 14.08.09) that was used for the above referenced design calculation. As a result of the model revision associated with FL0-20, it was determined that the outputs were impacted which could affect this design basis calculation. These output changes were discovered on September 28, 2016, at which time ENERCON generated a Corrective Action Report (CAR) to address the issue. ENERCON has initiated a reevaluation of the calculation using this new build of the FL0-20 Pro software.

"An evaluation of the reportability of this issue in accordance with 10 CFR Part 21 is not able to be completed within the 60-day evaluation period due the need to verify and validate the latest version of the software and then complete all the analysis required for updating the calculation. This evaluation is being tracked by CAR 2016-0335 and will be completed no later than February 10, 2017.

"If you have any questions or need further clarifying information, please contact Nick Eggemeyer, Corporate Quality Assurance Manager, at (770) 590-2031."

Notified the R1 DO (Schroeder}, R3DO (Cameron}, and Part 21 Group (via e-mail).

F.::d ENERCON Excellence-Every project. Every day.

Timothy P. Cleary Vice President 500 TownPark Lane Kennesaw, GA 30144 678-354-8359 Office 910-54 7-2800 Mobile December 12, 2016 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001

SUBJECT:

Amendment to the 10 CPR 21 Interim Report Regarding Design Basis Calculation Error Using FL0-2D Software This letter serves as an amendment to the 10 CPR 21.21 Interim Report filed on November 23, 2016, pertaining to a potential defect associated with a design basis calculation delivered to First Energy Nuclear Operating Company's Perry Nuclear Power Plant. Subsequent to delivery of the calculation, a standard, periodic review of the FL0-2D Pro software supplier website indicated that a new build of this software (version 16.06.16) had been issued. It replaced the software build (version 14.08.09) that was used for the above referenced design calculation. As a result of the model revision associated with FL0-2D, it was determined that the outputs were impacted which could affect this design basis calculation. These output changes were discovered on September 28, 2016, at which time ENERCON generated a Corrective Action Report (CAR) to address the issue. ENERCON has initiated a reevaluation of the calculation using this new build of the FL0-2D Pro software.

An evaluation of the reportability of this issue in accordance with 10 CPR Part 21 is not able to be completed within the 60-day evaluation period due the need to verify and validate the latest version of the software and then complete all the analysis required for updating the calculation. This evaluation is being tracked by CAR 2016-0335 and will be completed no later than February 10, 2017.

If you have any questions or need further clarifying information, please contact Nick Eggemeyer, Corporate Quality Assurance Manager, at (770) 590-2031.

Respectfully, Timothy P. Cleary Vice President, Cc: John D. Richardson, President Robert H. Bryan, Chief Operating Officer Jim J. Gannon, Chief Nuclear Officer Nick C. Eggemeyer, Corporate QA Manager 500 Townpark Lane Suire 275 Kennesaw, GA 30144 phone 770.919.1930 i<n, 770.919.1932 enercon.com

Hoc, HOO X From: Nick Eggemeyer < neggemeyer@enercon.com >

Sent: Tuesday, December 13, 2016 8:55 AM To: Hoc, HOOX

Subject:

[External_Sender] Amendment to 10 CFR Part 21 Interim Report Made On November 23,2016 Attachments: Amended 10 CFR 21 Interim Report - Perry Nuclear Plant Calculation Issue Approved.pdf Importance: High To: NRC Operations Center Attached find an amendment to the 10 CFR Part 21 Interim Report made to the NRC on November 23, 2016 regarding a design basis calculation error for the Perry Nuclear Plant using FL0-2D software. This amendment provides clarifying information relative to the software used for this calculation.

Regards,

~~

Corporate Quality Assurance Manager 500 Town Park Lane Kennesaw, GA 30144 Office: 770.590.2031 Cell: 678.800.3630 F:'~

-.!!....- ENERCON

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~ ENERCON Excellence-Every projecr. Every doy.

Timothy P. Cleary Vice President 500 TownPark Lane Kennesaw, GA 30144 678-354-8359 Office 910-547-2800 Mobile November 23, 2016 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 205.55-0001

SUBJECT:

10 CFR 21 Interim Report Regarding Design Basis Calculation Error Using FL0-2D Software This letter serves as an Interim Report in accordance with 10 CFR 21.21 pertaining to a potential defect associated with a design basis calculation delivered to First Energy Nuclear Operating Company's Perry Nuclear Power Plant. Subsequent to delivering this calculation, FL0-2D software errors were identified which resulted in erroneous outputs that affect the local intense precipitation calculation. These errors were discovered on September 28, 2016, at which time ENERCON generated a Corrective Action Report (CAR) to address the issue.

ENERCON has initiated a reevaluation of the calculation using the latest version of the software that will correct the errors in the calculation.

An evaluation of the reportability of this issue in accordance with 10 CFR Part 21 is not able to be completed within the 60-day evaluation period due the need to verify and validate the latest version of the software and then complete all the analysis required for updating the calculation. This evaluation is being tracked by CAR 2016-0335 and will be completed no later than February 10, 2017.

If you have any questions or need further clarifying information, please contact Nick Eggeineyer, Corporate Quality Assurance Manager, at (770) 590-2031.

Respectfully, Timothy P. Cleary Vice President Cc: John D. Richardson, President Robert H. Bryan, Chief Operating Officer Jim J. Gannon, Chief Nuclear Officer Nick C. Eggemeyer, Corporate QA Manager 500 Townpark Lane Suite275 Kennesaw, GA 30144 phone 770.919.1930 tax 770.919.1932 enercon.com

Hoc, HOO X From: Nick Eggemeyer <neggemeyer@enercon.com>

Sent: Wednesday, November 23, 2016 11:56 AM To: Hoc, HOO X

Subject:

[External_Sender] 10 CFR Part 21 Interim Report Attachments: 10CFR Part 21 Interim Report - Perry Nuclear Plant Calculation Error.pdf To: NRC Operations Center Attached find a 10 CFR Part 21 Interim Report regarding a design basis calculation error using FL0-20 software.

Please acknowledge receipt of this email.

Best regards,

~~

Corporate Quality Assurance Manager 500 TownPark Lane Kennesaw, GA 30144 Office: 770.590.2031 Cell: 678.800.3630 r.:~ ENERCON

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