NLS2009016, Commitment Due Date Change for Two Commitments Referenced in Nine-Month Response to NRC Generic Letter 2008-01
| ML090650249 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 03/02/2009 |
| From: | O'Grady B Nebraska Public Power District (NPPD) |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| GL-08-001, NLS2009016 | |
| Download: ML090650249 (3) | |
Text
N Nebraska Public Power District"Always there when you need us" NLS2009016 March 2, 2009 U.S. Nuclear Regulatory Commission Attention:
Document Control Desk Washington, D.C. 20555-0001
Subject:
Commitment Due Date Change for Two Commitments Referenced in Nine-Month Response to NRC Generic Letter 2008-01 Cooper Nuclear Station, Docket No. 50-298, DPR-46
Reference:
Letter from Stewart B. Minahan, Nebraska Public Power District, to the U.S.Nuclear Regulatory Commission, dated October ' 0, 2008, "Nine-Month Response to NRC Generic Letter 2008-01, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems"
Dear Sir or Madam:
The purpose of this letter is inform the Nuclear Regulatory Commission (NRC) of a change in due dates associated with two commitments.
Nebraska Public Power District (NPPD) committed to revise Cooper Nuclear Station (CNS) fill and vent procedures to use ultrasonic testing (UT) by no later than March 3, 2009 in the above reference.
NPPD made a similar commitment to revise surveillance procedures to use UT by the same date. The basis for both commitments is to provide additional assurance that Emergency Core Cooling Systems (ECCS) are filled. The new commitment date for these two commitments is August 3, 2009.The additional time permits the development and establishment of more rigorous acceptance criteria based on computer models of the ECCS in advance of evaluating future UT results collected by these procedures.
The new due date ensures the procedures will be available to support ECCS maintenance and restoration in the next refueling outage, and to support other CNS specific actions related to the resolution of Generic Letter (GL)2008-01.
The new due date is acceptable because of the results of recent walkdowns and UTs performed on identified ECCS susceptible unvented high points. The UT examinations performed on these locations found no major voids that exceeded industry acceptance guidelines or challenged ECCS operability.
Additionally, current operating experience and testing continue to demonstrate that the systems within the scope of the GL continue to support their required design functions.
COOPER NUCLEAR STATION P.O. Box 98 / Brownville, NE 68321-0098 Telephone:
(402) 825-3811 / Fax: (402) 825-5211 www.nppd.com NLS2009016 Page 2 of 2 The need to revise the commitment date for the two commitments has been discussed with the NRC Project Manager for CNS.If you have questions concerning this matter, please contact David Van Der Kamp, Licensing Manager at (402) 825-2904.Sincerely, Brian J. O'Grady Site Vice President/dm cc: Regional Administrator USNRC -Region IV Cooper Project Manager USNRC -NRR Project Directorate IV-1 Senior Resident Inspector USNRC -CNS NPG Distribution CNS Records ATTACHMENT 3 LIST OF REGULATORY COMMITMENTS 4 ATTACHMENT 3 LIST OF REGULATORY COMMITMENTS© 4 Correspondence Number: NLS2009016 The following table identifies those actions committed to by Nebraska Public Power District (NPPD) in this document.
Any other actions discussed in the submittal represent intended or planned actions by NPPD. They are described for information only and are not regulatory commitments.
Please notify the Licensing Manager at Cooper Nuclear Station of any questions regarding this document or any associated regulatory commitments.
COMMITMENT COMMITTED DATE COMMITMENT NUMBER OR OUTAGE NPPD will revise the fill and vent procedures to use UT to provide additional assurance the NLS2008081-09 08/03/2009 systems are filled.NPPD will revise surveillance procedures to use UT to provide additional assurance the systems NLS2008081-10 08/03/2009 are filled.4 ++4 +I PROCEDURE 0.42 REVISION 23 PAGE 18 OF 25
Text
N Nebraska Public Power District"Always there when you need us" NLS2009016 March 2, 2009 U.S. Nuclear Regulatory Commission Attention:
Document Control Desk Washington, D.C. 20555-0001
Subject:
Commitment Due Date Change for Two Commitments Referenced in Nine-Month Response to NRC Generic Letter 2008-01 Cooper Nuclear Station, Docket No. 50-298, DPR-46
Reference:
Letter from Stewart B. Minahan, Nebraska Public Power District, to the U.S.Nuclear Regulatory Commission, dated October ' 0, 2008, "Nine-Month Response to NRC Generic Letter 2008-01, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems"
Dear Sir or Madam:
The purpose of this letter is inform the Nuclear Regulatory Commission (NRC) of a change in due dates associated with two commitments.
Nebraska Public Power District (NPPD) committed to revise Cooper Nuclear Station (CNS) fill and vent procedures to use ultrasonic testing (UT) by no later than March 3, 2009 in the above reference.
NPPD made a similar commitment to revise surveillance procedures to use UT by the same date. The basis for both commitments is to provide additional assurance that Emergency Core Cooling Systems (ECCS) are filled. The new commitment date for these two commitments is August 3, 2009.The additional time permits the development and establishment of more rigorous acceptance criteria based on computer models of the ECCS in advance of evaluating future UT results collected by these procedures.
The new due date ensures the procedures will be available to support ECCS maintenance and restoration in the next refueling outage, and to support other CNS specific actions related to the resolution of Generic Letter (GL)2008-01.
The new due date is acceptable because of the results of recent walkdowns and UTs performed on identified ECCS susceptible unvented high points. The UT examinations performed on these locations found no major voids that exceeded industry acceptance guidelines or challenged ECCS operability.
Additionally, current operating experience and testing continue to demonstrate that the systems within the scope of the GL continue to support their required design functions.
COOPER NUCLEAR STATION P.O. Box 98 / Brownville, NE 68321-0098 Telephone:
(402) 825-3811 / Fax: (402) 825-5211 www.nppd.com NLS2009016 Page 2 of 2 The need to revise the commitment date for the two commitments has been discussed with the NRC Project Manager for CNS.If you have questions concerning this matter, please contact David Van Der Kamp, Licensing Manager at (402) 825-2904.Sincerely, Brian J. O'Grady Site Vice President/dm cc: Regional Administrator USNRC -Region IV Cooper Project Manager USNRC -NRR Project Directorate IV-1 Senior Resident Inspector USNRC -CNS NPG Distribution CNS Records ATTACHMENT 3 LIST OF REGULATORY COMMITMENTS 4 ATTACHMENT 3 LIST OF REGULATORY COMMITMENTS© 4 Correspondence Number: NLS2009016 The following table identifies those actions committed to by Nebraska Public Power District (NPPD) in this document.
Any other actions discussed in the submittal represent intended or planned actions by NPPD. They are described for information only and are not regulatory commitments.
Please notify the Licensing Manager at Cooper Nuclear Station of any questions regarding this document or any associated regulatory commitments.
COMMITMENT COMMITTED DATE COMMITMENT NUMBER OR OUTAGE NPPD will revise the fill and vent procedures to use UT to provide additional assurance the NLS2008081-09 08/03/2009 systems are filled.NPPD will revise surveillance procedures to use UT to provide additional assurance the systems NLS2008081-10 08/03/2009 are filled.4 ++4 +I PROCEDURE 0.42 REVISION 23 PAGE 18 OF 25