05000270/LER-2021-004, More than One Axial Power Shaping Rod Not Aligned within Technical Specification Limits

More than One Axial Power Shaping Rod Not Aligned within Technical Specification Limits

ML22038A970
Person / Time
Site:	Oconee
Issue date:	02/07/2022
From:	Snider S Duke Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RA-22-0061 LER 2021-004-00
Download: ML22038A970 (6)

LER-2021-004, More than One Axial Power Shaping Rod Not Aligned within Technical Specification Limits

Event date:
Report date:
Reporting criterion:	10 CFR 50.73(a)(2)(ii) 10 CFR 50.73(a)(2)(viii)(A) 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)(v)(B), Loss of Safety Function - Remove Residual Heat 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(i)(A), Completion of TS Shutdown 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(i)
2702021004R00 - NRC Website

text

Steven M. Snider Vice President Oconee Nuclear Station

Duke Energy ON01SC l 7800 Rochester Hwy Seneca, SC 29672

o.864.873.3478 f: 864.873.5791 Steve.Snider@duke-energy.com

RA-22-0061

February 7, 2022 10 CFR 50.73

Attn: Document Control Desk U. S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD 20852-2746

Duke Energy Carolinas, LLC Oconee Nuclear Station Unit 2 Docket Number: 50-270 Renewed Operating Licenses: DPR-49

Subject: Licensee Event Report 270/2021-004, Revision 00 - More Than One Axial Power Shaping Rod Not Aligned within Technical Specification Limits

Licensee Event Report 270/2021-004, Revision 00, is being submitted pursuant to the requirements of 10 CFR 50.73 to provide notification of the subject event.

There are no regulatory commitments associated with this LER.

There are no unresolved corrective actions necessary to restore compliance with NRC requirements.

If there are questions, or further information is needed, contact Sam Adams, Regulatory Affairs, at (864) 873-3348.

Sincerely,

Steven M. Snider Vice President Oconee Nuclear Station

Enclosure: Licensee Event Report 270-2021-004 Rev.00

RA-22-0061 February 7, 2022 Page 2

cc (w/Enclosure):

Ms. Laura Dudes, Administrator, Region II U.S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Ave., NE, Suite 1200 Atlanta, GA 30303-1257

Mr. Shawn Williams, Project Manager U.S. Nuclear Regulatory Commission 11555 Rockville Pike Mail Stop O-08B1A Rockville, MD 20852-2738

Mr. Jared Nadel NRC Senior Resident Inspector Oconee Nuclear Station

NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: N O. 3 150-01 04 EXPIRES: 08/31/2 023

( 08-2020)

Estimated burden per response to comply with th is mandatory co llec tion request: 80 hours9.259259e-4 days <br />0.0222 hours <br />1.322751e-4 weeks <br />3.044e-5 months <br />.

Reported lessons learned are incorporated into the licensing p rocess and fed back to industry.

Send comments regarding burden estimate to the Informa tion Services Br anch (T -6 A10M),

LICENSEE EVENT REPORT (LER) U.S. Nuclear Regulatory Commission, Washington, DC 20555- 0001, or by e-mail to (See Page 2 fo r requi red number of digits /characters for each block) Infocollects.Resource@nrc.gov, and the OMB revie wer at: OMB Office of In formation and Regulatory Affa irs, (3150- 0104), Attn: Desk a i l: oira_submission@omb.eop.gov. The NRC (See N UR EG-1022, R.3 for inst ruction and guidance fo r completing this may not conduct or sponsor, and a person is not required to respond to, a collection of form h ttp ://w ww.n rc.gov /rea ding-rm /d oc-co llec tions /n u regs /s taff /s r1 022 /r3 /) informa tion unless the document requesting or requiring the collection displays a curren tly valid OM B contro l number.

Oc onee Nuclear Station U ni t 2 0500 000 2 70 1 OF 4

4. Title More Than One A xial Power Shaping Rod Not Aligned within Technical Specification Limits

5. Event Date 6. LE R Num ber 7. Repor t Date 8. Other Facilities Involved

Sequential Rev Facility Name Docket Number Month Day Year Year Number No. Month Day Year NA 0 5000 12 9 2021 2021 004 00 02 07 2022 Facility Name Docket Number NA 0 5000

9. Ope ra ting Mod e 1 1. T his Repor t is S ubm itted P ur suant to the Requir em ents of 10 CFR §: (Check all that apply) 20.2203(a)(3)(i) 50.73(a)(2)(ii)(A ) 50.73(a)(2)(viii)(A) 1 20.2201(b) 20.2201(d) 20.2203(a)(3)(ii) 50.73(a)(2)(ii)(B ) 50.73(a)(2)(viii)(B) 20.2203(a)(1) 20.2203(a)(4) 50.73(a)(2)(iii) 50.73(a)(2)(ix)(A) 20.2203(a)(2)(i) 50.36(c)(1)(i)(A) 50.73(a)(2)(iv)(A) 50.73(a)(2)(x)

10. P ow e r Level 20.2203(a)(2)(ii) 50.36(c)(1)(ii)(A) 50.73(a)(2)(v)(A) 73.71(a)(4) 20.2203(a)(2)(iii) 50.36(c)(2) 50.73(a)(2)(v)(B) 73.71(a)(5) 073 20.2203(a)(2)(iv) 50.46(a)(3)(ii) 50.73(a)(2)(v)(C) 73.77(a)(1)

20.2203(a)(2)(v) 50.73(a)(2)(i)(A) 50.73(a)(2)(v)(D ) 73.77(a)(2)(ii) 20.2203(a)(2)(vi) 50.73(a)(2)(i)(B) 50.73(a)(2)(vii) 73.77(a)(2)(iii) 50.73(a)(2)(i)(C) Other (Specify in Abstract below or in

ADDIT IONAL INFORMATION

A review of Duke Energys Corrective Action Program did not identify any Oconee LERs or events in the last 3 years that involved the same underlying concerns or reasons as this event.

This event is considered INPO IRIS Reportable. There were no releases of radioactive materials, radiation exposures or personnel i njuries associated with this event.