NLS2008058, LER 08-S01-00 for Cooper Regarding Temporary Suspension of Security Measures Due to Tornado Warning

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LER 08-S01-00 for Cooper Regarding Temporary Suspension of Security Measures Due to Tornado Warning
ML082250253
Person / Time
Site: Cooper Entergy icon.png
Issue date: 08/05/2008
From: Michael Colomb
Nebraska Public Power District (NPPD)
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
NLS2008058 LER 08-S01-00
Download: ML082250253 (5)
v • d • e


Text

N Nebraska Public Power District "Always there when you need us" NLS2008058 August 5, 2008 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555-0001

Subject:

Licensee Event Report No. 2008-SO1-00 Cooper Nuclear Station, NRC Docket 50-298, DPR-46

Dear Sir or Madam:

The purpose of this correspondence is to forward Licensee Event Report 2008-S01-00.

Sincerely, Michael J. Colomb General Manager of Plant Operations

/lb Attachment cc: Regional Administrator w/attachment NPG Distribution w/attachment USNRC - Region IV Cooper Project Manager w/attachment INPO Records Center w/attachment USNRC - NRR Project Directorate IV-1 Senior Resident Inspector w/attachment SORC Administrator w/attachment USNRC - CNS Director, Division of Nuclear Security, SRAB Administrator w/attachment Office of Nuclear Security and Incident

Response

CNS Records w/attachment COOPER NUCLEAR STATION P.O. Box 98 / Brownville, NE 68321-0098 Telephone: (402) 825-3811 / Fax: (402) 825-5217 ww nppd.com .

NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB NO. 3150-0104 EXPIRES 08/31/2010 (9-2007) Estimated burden per response to comply with this mandatory information collection request: 80 hrs. Reported lessons learned are incorporated into the licensing process and fed back to industry. Forward comments regarding burden estimate to the Records and FOIA/Privacy Service Branch (T-5 F52), U.S. Nuclear Regulatory LICENSEE EVENT REPORT (LER) Commission, Washington, DC 20555-0001, or by internet e-mail to infocollects@nrc.gov, and to the Desk Officer, Office of Information and Regulatory Affairs NEOB-10202 (3150-0104), Office of Management and Budget, Washington, (See reverse for required number of DC 20503. If a means to impose an information collection does not display a currently valid OMB control number, the NRC may not conduct or sponsor, and a person is not digits/characters for each block) required to respond to, the information collection.

1. FACILITY NAME 2. DOCKET NUMBER 3. PAGE Cooper Nuclear Station 05000298 1 of 3
4. TITLE Temporary Suspension of Security Measures Due to Tornado Warning j
5. EVENT DATE 6. LER NUMBER 7. REPORT DATE 8. OTHER FACILITIES INVOLVED NUFACMTY NAME DOCKET NUMBER MONTH: DAY YEAR YEAR SEQUENTIAL REVISION MONTH DAY YEAR FACILITY NAME DOCKET NUMBER 06 11 2008 2008 S01 00 08 05 2008 05000
9. OPERATING MODE 11. THIS REPORT IS SUBMITTED PURSUANT TO THE REOUIREMENTS OF 10 CFR 6: (Check all that aooIv)

EL 20.2201(b) EL 20.2203(a)(3)(i) [: 50.73(a)(2)(i)(C) [L 50.73(a)(2)(vii)

El 20.2201(d) EL 20.2203(a)(3)(ii) EL 50.73(a)(2)(ii)(A) I] 50.73(a)(2)(viii)(A)

EL 20.2203(a)(1) EL 20.2203(a)(4) EL 50.73(a)(2)(ii)(B) [E 50.73(a)(2)(viii)(B)

EL 20.2203(a)(2)(i) EL 50.36(c)(1)(i)(A) EL 50.73(a)(2)(iii) [I 50.73(a)(2)(ix)(A)

[] 20.2203(a)(2)(ii) El 50.36(c)(1)(ii)(A) El 50.73(a)(2)(iv)(A) El 50.73(a)(2)(x)

10. POWER LEVEL El 20.2203(a)(2)(iii) EL 50.36(c)(2) EL 50.73(a)(2)(v)(A) Li 73.71(a)(4) 100 Li 20.2203(a)(2)(iv) EL 50.46(a)(3)(ii) Li 50.73(a)(2)(v)(B) Li 73.71(a)(5)

Li 20.2203(a)(2)(v) [L 50.73(a)(2)(i)(A) [: 50.73(a)(2)(v)(C) M OTHER Li 20.2203(a)(2)(vi) [:1 50.73(a)(2)(i)(B) Li 50.73(a)(2)(v)(D) Specify inAbstract below or in NRC Form 366A

12. LICENSEE CONTACT FOR THIS LERTELEPHONE NUMBER (Include.Area Code)

FACILITY NAME ..

David W. Van Der Kamp, Licensing Manager , (402) 825-2904

13. COMPLETE ONE LINE FOR EACH COMPONENT FAILURE DESCRIBED IN THIS REPORT CAUSE SYSTEM COMPONENTI MANUFACTURER REPORTABLE . CAUSE SYSTEM COMPONENT MANU- REPORTABLE ii" !i TO EPIX . "FACTURER i TO EPIX i .......................................................................
14. SUPPLEMENTAL REPORT EXPECTED 15. EXPECTED MONTH DAY YEAR EL YES (If yes, complete EXPECTED SUBMISSION DATE). NO SUBMISSION DATE
16. ABSTRACT (Limit to 1400 spaces, i.e., approximately 15 single-spaced typewritten lines)

On June 11, 2008, the National Weather Service issued a tornado warning for Nemaha County, Nebraska. At 2215 Central Daylight Time, the Cooper Nuclear Station Shift Manager authorized the recall of Security personnel from assigned posts due to the tornado warning. This included personnel assigned to a compensatory post. At 2324, upon expiration of the tornado warning, officers were relocated to their assigned posts.

This included reestablishment of the affected compensatory post.

During the temporary suspension of security measures, continuous camera scans of the Owner Controlled Area and the Protected Area fence line were conducted. In addition, the entrance turnstiles to the Protected Area were locked and removed from service. Continuous radio communication was maintained with all Security officers.

This condition is reportable in accordance with 10 CFR 73.71(d).

The cause of this event was environmental conditions. No actions to prevent recurrence are necessary.

NRC FORM 366 (9-2007)

NRC FORM 366A U.S. NUCLEAR REGULATORY COMMISSION 19-2007) LICENSEE EVENT REPORT (LER)

CONTINUATION SHEET

1. FACILITY NAME 2. DOCKET 6. LER NUMBER 3. PAGE YEAR SEQUENTIAL REVISION Cooper Nuclear Station 05000298 NUMBER 2 of 3 2008_--_S01 -- 000
17. NARRATIVE (If more space is required, use additionalcopies of Form 366A)

PLANT STATUS Cooper Nuclear Station (CNS) was in Mode 1 (Run) at 100 percent power when the event occurred.

EVENT DESCRIPTION On June 11, 2008, the National Weather Service issued a tornado warning for Nemaha County, Nebraska. At 2215 Central Daylight Time, the CNS Shift Manager authorized the recall of Security personnel from assigned posts due to this tornado warning in the vicinity of the plant. Upon authorization, Security personnel took appropriate shelter.

This temporary suspension of security measures included personnel assigned to a compensatory post.

During the temporary suspension of security measures, continuous camera scans of the Owner Controlled Area and the Protected Area fence line were conducted. In addition, the entrance turnstiles to the Protected Area were locked and removed from service. Continuous radio communication was maintained with all Security officers.

At 2324, upon expiration of the tornado warning, officers were relocated to their assigned posts. This included reestablishment of the affected compensatory post. The time period for suspension of security measures was minimized.

CNS utilizes a proprietary security force. There was no media interest indicated and no press release made. No Local, State or Federal agencies were notified other than the Nuclear Regulatory Commission.

BASIS FOR REPORT This condition is reportable in accordance with 10 CFR 73.71(d). The withdrawal of Security personnel from a compensatory post created a vulnerability that could have allowed unauthorized or undetected access to the Protected Area.

SAFETY SIGNIFICANCE There is negligible safety significance associated with this event. There were no safety systems affected and there was no intrusion during the event.

CAUSE The cause of this event was environmental conditions.

NRC FORM 366A (9-2007)

NRC FORM 366A U.S. NUCLEAR REGULATORY COMMISSION 19-2007) LICENSEE EVENT REPORT (LER)

CONTINUATION SHEET

1. FACILITY NAME 2. DOCKET 6. LER NUMBER 3. PAGE YEAR SEQUENTIAl REVISION Cooper Nuclear Station 0500,0298 NUMBER' 3 of 3

__2008 -- S01 -- 000

17. NARRATIVE (If more space is required,use additionalcopies of Form 366A)

CORRECTIVE ACTION No actions to prevent recurrence are necessary.

PREVIOUS EVENTS LER 2004-SO1 reported a similar event on May 24, 2004, when portions of the Safeguards Plan were temporarily suspended during a tornado warning, including the withdrawal of compensatory posts.

NRC FORM 366A (9-2007)

ATTACHMENT 3 LIST OF REGULATORY COMMITMENTS@

ATTACHMENT 3 LIST OF REGULATORY COMMITMENTS@

Correspondence Number: NLS2008058 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 None i i PROCEDURE 0.42 REVISION 22 PAGE 18 OF 25

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