ML102460563

NSP000018-Revised Testimony of Steven Skoyen-CE 01140617-03

ML102460563
Person / Time
Site:	Prairie Island
Issue date:	09/03/2010
From:	- No Known Affiliation
To:	Atomic Safety and Licensing Board Panel
SECY RAS
Shared Package
ML102460550	List: IR 05000282/2009009 IR 05000282/2009011 IR 05000282/2009015 Information Notice 2009-11, NSP000059-Revised Prefiled Testimony of Northard/Petersen/Peterson-NRC Information Notice 2009-11 L-PI-10-027, NSP000046-Revised Testimony of Northard/Petersen/Peterson-NSPM Response to NRC Annual Assessment Letter for Calendar Year 2009 ML102460551 ML102460552 ML102460553 ML102460554 ML102460555 ML102460556 ML102460557 ML102460558 ML102460559 ML102460560 ML102460562 ML102460563 ML102460564 ML102460565 ML102460566 ML102460568 ML102460569 ML102460615 ML102460616 ML102460617 ML102460618 ML102460619 ML102460620 ML102460621 ML102460624 ML102460625 ML102460626 ML102460627 ML102460628 ML102460629 ML102460630 ML102460631 ML102460633 ML102460634 ML102460635 ML102460636 ML102460637 ML102460638 ML102460639 ML102460715 ML102460716 ML102460718 ML102460719 ML102460720 ML102460722 ... further results
References
50-282-LR, 50-306-LR, ASLBP 08-871-01-LR-BD01, RAS 18550
Download: ML102460563 (2)

Text

NSP000018 SKOYEN EXHIBIT 18 CE01140617-03 Potential IWE Non-compliance Event Description This CE evaluates failure to report refuel cavity leakage and the associated potential for degradation of the containment vessel as required for the IWE program.

The Code of Federal Regulations 10CFR50.55a requires in paragraph (b)(2)(ix)(A) that the licensee shall evaluate the acceptability of inaccessible areas when conditions exist in accessible areas that could indicate the presence of or result in degradation to such inaccessible areas. For each inaccessible area identified, the licensee shall provide the following in the ISI Summary Report as required by IWA-6000: A description of the type and estimated extent of degradation, and the conditions that led to the degradation; An evaluation of each area, and the result of the evaluation, and; A description of necessary corrective actions.

Refuel cavity leakage that contacts the containment vessel is considered conditions in accessible areas that could indicated the presence of or result in degradation of inaccessible areas. Accordingly, the site should have included a discussion of the leakage in the 90 day summary report following each outage that such leakage occurred. The site failed to report the 2R24 refuel cavity leakage and previously in 2R22.

The primary purpose of this CE is to identify instances of leakage since the beginning of the current IWE interval (September of 1996) that were not appropriately reported.

Following is a summary of refuel cavity leakage events and report status based on a review of associated CAPs, 90 day summary reports, and other sources such as program notes. The following is based on a reasonable search of available documentation and may not be complete or conclusive.

Outage Approx. Leakage Cap # Included in 90 Day Date Report?

2R18 Apr-97 Unknown 1R19 Oct-97 Unknown 2R19 Oct-98 Leakage in Sump B and other 00051045 Yes. Reported by locations. Initial AES amendment evaluation. AR00122811 1R20 Apr-99 Leakage in Sump B and other 00057041 Yes. Reported by locations. amendment AR00122811 2R20 Apr-00 Unknown 1R21 Jan-01 No Leakage. Installed N/R Strippable liner.

2R21 Feb-02 No Leakage. Installed N/R Strippable liner.

1R22 Nov-02 Leakage in Sump B. 00284714 Yes. Included in Strippable liner failed to stop original summary leakage. report.

2R22 Sep-03 Leakage in various locations. 00531162 Failed to include in report.

1R23 Sep-04 Leakage noted in regen room 00751496 N/R

2R23 May-05 No Leakage. Caulked N/R penetrations 1R24 May-06 No Leakage. Caulked N/R penetrations 2R24 Nov-06 Leakage in Sump B. Revised 01064513 Failed to include in AES evaluation. report.

1R25 Jan-08 No Leakage. Caulked N/R penetrations Indications are the site failed to report leakage for 2R22 and 2R24. Other outages either did not have leakage or the status of leakage and the need to report is unknown.

Corrective Actions and Final Disposition A corrective action AR 01140617-05 has been initiated to submit an amendment to the 2R22 and 2R24 90 day summary reports to meet the requirements of 10CFR50.55a(b)(2)(ix)(A). Submission of the amendment will restore compliance and allow the associated OBN to be closed.