05000285/LER-2011-003-02, Regarding Inadequate Flooding Protection Due to Ineffective Oversight

Regarding Inadequate Flooding Protection Due to Ineffective Oversight

ML12061A224
Person / Time
Site:	Fort Calhoun
Issue date:	03/01/2012
From:	Bannister D Omaha Public Power District
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
LlC-12-0022 LER 11-003-02
Download: ML12061A224 (8)

LER-2011-003, Regarding Inadequate Flooding Protection Due to Ineffective Oversight

Event date:
Report date:
Reporting criterion:	10 CFR 50.73(a)(2)(v)(B), Loss of Safety Function - Remove Residual Heat 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(ii)(A), Seriously Degraded 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(B) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2)(ix)(A) 10 CFR 50.73(a)(2)(iv)(A), System Actuation 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(v)(A), Loss of Safety Function - Shutdown the Reactor 10 CFR 50.73(a)(2)(i)(A), Completion of TS Shutdown 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
2852011003R02 - NRC Website

text

Omaha Public Power District 444 South 16'" Street Mall Omaha, NE 68102-2247 LlC-12-0022 March 1, 2012 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 References: 1.

Docket No. 50-285

2.

Letter from OPPD (J. A. Reinhart) to NRC (Document Control Desk), dated April 4, 2011 (LlC-11-0023)

3.

Letter from OPPD (T. R. Nellenbach) to NRC (Document Control Desk) dated May 13, 2011 (LlC-11-0051)

4.

Letter from OPPD (T. R. Nellenbach) to NRC (Document Control Desk) dated May 16, 2011 (LlC-11-0039)

5.

Letter from OPPD (D. J. Bannister) to NRC (Document Control Desk) dated December 17, 2011 (LlC-11-0132)

Subject:

Licensee Event Report 2011-003, Revision 2, for the Fort Calhoun Station Please find attached Licensee Event Report 2011-003, Revision 2, dated, February 29, 2012. This report is being submitted pursuant to 10 CFR 50.73(a)(2)(v)(B) and (D).

This report is being issued to correct an administrative oversight from reference 5. The LER transmitted in reference 5 was marked revision 3 and should have been revision 2.

In addition, one bullet documented EN 46893 which was retracted and the bullet has been removed. If you should have any questions, please contact me.

Sincerely,

,f)~

D. J. Bannister Site Vice President and Chief Nuclear Officer Fort Calhoun Station DJB /epm Attachment c:

E. E. Collins, Jr., NRC Regional Administrator, Region IV L. E. Wilkins, NRC Project Manager J. C. Kirkland, NRC Senior Resident Inspector INPO Records Center Employment with Equal Opportunity

NRC FORM 366 (10-2010)

NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION (10-2010)

LICENSEE EVENT REPORT (LER)

(See reverse for required number of digits/characters for each block)

APPROVED BY OMB: NO. 3150-0104 EXPIRES: 10/31/2013

, the NRC may not conduct or sp onsor, and a person is not required to respond to, th e

information collection.

1. FACILITY NAME Fort Calhoun Station

2. DOCKET NUMBER 05000285

3. PAGE 1 OF 5

4. TITLE Inadequate Flooding Protection Due To Ineffective Oversight

5. EVENT DATE

6. LER NUMBER

7. REPORT DATE

8. OTHER FACILITIES INVOLVED MONTH DAY YEAR YEAR SEQUENTIAL NUMBER REV NO.

MONTH DAY YEAR FACILITY NAME DOCKET NUMBER 05000 2

3 2011 2011 - 003 -

2 3

1 2012 FACILITY NAME DOCKET NUMBER 05000

9. OPERATING MODE 1

11. THIS REPORT IS SUBMITTED PURSUANT TO THE REQUIREMENTS OF 10 CFR §: (Check all that apply) 20.2201(b) 20.2203(a)(3)(i) 50.73(a)(2)(i)(C) 50.73(a)(2)(vii) 20.2201(d) 20.2203(a)(3)(ii) 50.73(a)(2)(ii)(A) 50.73(a)(2)(viii)(A) 20.2203(a)(1) 20.2203(a)(4) 50.73(a)(2)(ii)(B) 50.73(a)(2)(viii)(B) 20.2203(a)(2)(i) 50.36(c)(1)(i)(A) 50.73(a)(2)(iii) 50.73(a)(2)(ix)(A) 20.2203(a)(2)(ii) 50.36(c)(1)(ii)(A) 50.73(a)(2)(iv)(A) 50.73(a)(2)(x) 20.2203(a)(2)(iii) 50.36(c)(2) 50.73(a)(2)(v)(A) 73.71(a)(4) 20.2203(a)(2)(iv) 50.46(a)(3)(ii) 50.73(a)(2)(v)(B) 73.71(a)(5) 20.2203(a)(2)(v) 50.73(a)(2)(i)(A) 50.73(a)(2)(v)(C)

OTHER 20.2203(a)(2)(vi) 50.73(a)(2)(i)(B) 50.73(a)(2)(v)(D)

Specify in Abstract below or in LICENSEE EVENT REPORT (LER)

CONTINUATION SHEET

SAFETY SIGNIFICANCE

The Fort Calhoun Station is required to be protected from flooding within the stations licensing basis.

The safety related equipment required to mitigate the consequences of an accident were affected by these findings. The openings could have jeopardized the ability of the safety related equipment to perform their design basis function during an accident. Other methods of removing decay heat and mitigating the consequences of a flooding event were available. Therefore, this external flooding concern has substantial importance to safety as indicated by the Yellow Finding issued for this event.

SAFETY SYSTEM FUNCTIONAL FAILURE This event does result in a safety system functional failure in accordance with NEI-99-02.

PREVIOUS EVENTS No licensee event report prior to this has identified the flooding issue. LER 2011-001 which had been written to report a flooding penetration has been cancelled as indicated in Reference 3 to the cover letter to this LER. The penetration is discussed in this LER.

FORT CALHOUN STATION NOD-QP-9.2 QUALITY PROCEDURE FORM R0 LICENSING CORRESPONDENCE REVIEW FORM LIC-12-00022 Date Issued: 2/27/12 Requested Return Date:____2/28/12______

Review/Approval Information Dave Bannister Lynn Smith Susan Baughn Brad Blome Cory Cameron Mike Cooper Subject___ Inadequate Flooding Protection Rev 2 Please review and approve the attached draft correspondenc e (referenced above). In order to document your review for our records, please sign this form and return it to the Licensing Coordinator. If n o notification is received by the requested return date, your concurrence with no comment will be assumed.

E. Matzke 1597____

Technical Coordinator (Ext.) Licensing Coordinator (Ext.)

[ ] Approved with no comment. [ ] Approved pending resolution of comments as noted.

Comments:_______________________________________________________________________________

Reviewer's Signature Date

FORT CALHOUN STATION NOD-QP-9.2 QUALITY PROCEDURE FORM R0 LICENSING CORRESPONDENCE REVIEW FORM SUMMARY LIC-12-0022 Date Issued: 2/27/12 Requested Return Date: 2/28/12 Name Date Comments Received No Comments1 Comments - How Resolved2 Dave Bannister Susan Baughn Cory Cameron Mike Cooper Lynn Smith Subject: Inadequate Flooding Protection Rev 2 NOTE - This submittal does ____ does not __X__ include documents/files on CD-ROM.3 NL Comment Coordinator Signature E. Matzke Date Responsible Dept. Manager (if required)

Date Review by Nuclear Licensing Supervisor Date 1 Attach only signed Licensing Correspondence Review Form.

2 Attach necessary documentation.

3 Ensure that the CD-ROM files are formatted properly for electronic information exchange (EIE) to the NRC. (Reference NL-17)