ML102250513: Difference between revisions

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{{#Wiki_filter:CE01140617-03 Potential IWE Non-compliance Event DescriptionThis 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  
{{#Wiki_filter: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


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 shou ld 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
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.
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.
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.}}
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. OutageApprox.
DateLeakageCap # Included in 90 Day Report?2R18Apr-97Unknown1R19Oct-97Unknown2R19Oct-98Leakage in Sump B and other locations. Initial AES
 
evaluation.00051045Yes. Reported by amendment AR001228111R20Apr-99Leakage in Sump B and other locations.00057041Yes. Reported by amendment AR001228112R20Apr-00Unknown1R21Jan-01No Leakage. Installed Strippable liner.
N/R2R21Feb-02No Leakage. Installed Strippable liner.
N/R1R22Nov-02Leakage in Sump B. Strippable liner failed to stop
 
leakage.00284714Yes. Included in original summary
 
report.2R22Sep-03Leakage in various locations. 00531162 Failed to include in report.1R23Sep-04Leakage noted in regen room 00751496N/RSKOYENEXHIBIT18 2R23May-05No Leakage. Caulked penetrations N/R1R24May-06No Leakage. Caulked penetrations N/R2R24Nov-06Leakage in Sump B. Revised AES evaluation.
01064513 Failed to include in report.1R25Jan-08No Leakage. Caulked penetrations N/RIndications 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 DispositionA corrective action AR01140617-05 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.}}

Revision as of 15:35, 13 November 2019

2010/08/13-Skoyen Exhibit 18, CE01140617-03 Potential IWE Non-Compliance
ML102250513
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 08/13/2010
From:
- No Known Affiliation
To:
Atomic Safety and Licensing Board Panel
SECY RAS
Shared Package
ML102250494 List:
References
50-282-LR, 50-306-LR, ASLBP 08-871-01-LR-BD01, RAS 18400
Download: ML102250513 (2)
v • d • e


Text

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.

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