05000395/LER-2019-002, Regarding Condition Prohibited by Technical Specification 3.6.4

Regarding Condition Prohibited by Technical Specification 3.6.4

ML19283B209
Person / Time
Site:	Summer
Issue date:	10/09/2019
From:	Lippard G Dominion Energy Co, South Carolina Electric & Gas Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
19-391 LER 2019-002-00
Download: ML19283B209 (4)

LER-2019-002, Regarding Condition Prohibited by Technical Specification 3.6.4

Event date:
Report date:
Reporting criterion:	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)(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)
3952019002R00 - NRC Website

text

V. C. Summer Nuclear Station Bradham Blvd & Hwy 215, Jenkinsville, SC 29065 Mailing Address:

P.O. Box 88, Jenkinsville, SC 29065 Dominion Energy.com October 9, 2019 Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 SOUTH CAROLINA ELECTRIC & GAS COMPANY

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Energy Serial No.19-391 VCS-LIC/BAB RO Docket No. 50-395 License No. NPF-12 VIRGIL C. SUMMER NUCLEAR STATION (VCSNS) UNIT 1 LICENSEE EVENT REPORT 2019-002-00 CONDITION PROHIBITED BY TECHNICAL SPECIFICATION 3.6.4 South Carolina Electric & Gas Company1 hereby submits Licensee Event Report (LER) 2019-002-00, for the Virgil C. Summer Nuclear Station. This report provides details concerning missed action requirements required by Technical Specification 3.6.4. This report is submitted in accordance with 10 CFR 50. 73(a)(2)(i)(B).

This report exceeds the 60 day reporting requirement after discovery of an event. This has been documented in CR-19-02562.

Should you have any questions, please call Mr. Michael Moore at (803) 345-4752.

Sincerely, Enclosure Commitments contained in this letter: None cc:

G. J. Lindamood - Santee Cooper L. Dudes - NRG Region II S. A. Williams - NRG Project Mgr.

NRG Resident Inspector J. N. Bassett - INPO Marsh USA, Inc.

(1) In a letter dated July 30, 2019 (ML19214A046), South Carolina Electric & Gas Company (SCE&G) requested a License Amendment to amend the V. C. Summer operating license to reflect the name change from SCE&G to Dominion Energy South Carolina (DESC). The amendment request is currently under review by the NRC.

NRC FORM366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY 0MB: NO. 3150-0104 EXPIRES: 03/31/2020 (04-2018)

Estimated burden per response to comply with this mandatory collection request 80 hours9.259259e-4 days <br />0.0222 hours <br />1.322751e-4 weeks <br />3.044e-5 months <br />.

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LICENSEE EVENT REPORT (LER)

Reported lessons learned are incorporated into the [,censing process and fed back to Industry. Send comments regarding burden estimate to the lnfonnalion Sentices Branch

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>o (T-2 F43), U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, or by e-mail

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(See Page 2 for required number of digits/characters for each block) n to lnfocollects.Resource@nrc.gov, and to the Desk Officer, Office of Information and 0

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(See NUREG-1022, R.3 for instruction and guidance for completing this form Regulatory Affairs, NEOB-10202, (3150-0104), Office of Management and Budge~

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Washington, DC 20503. If a means used to impose an information collection does not

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http://www.nrc.ggv/reading-rm/doc-collectigns/nuregs/staff/sr1022/r3l) display a currently vaid 0MB con~ol number, the NRC may not conduct or sponsor, and a person is notrequired to respond to, the infonnation collection.

3.Page V.C. Summer Nuclear Station, Unit 1 05000 395 1

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4. Title CONDITION PROHIBITED BY TECHNICAL SPECIFICATION 3.6.4

5. Event Date

6. LER Number

7. Report Date

8. Other Facilities Involved I

Sequential I Rev Facility Name Docket Number Month Day Year Year Number No.

Month Day Year 05000 Facility Name Docket Number 03 08 2018 2019 -

002.

00 10 07 2019 05000

9. Operating Mode

11. This Report is Submitted Pursuant to the Requirements of 1 O CFR §: {Check all that apply)

D 20.2201(b)

D 20.2203(a)(3)(i)

D 50.73(a)(2)(ii)(A)

D 50.73(a)(2)(viii)(A)

D 20.2201(d)

D 20.2203(a)(3)(ii)

D 50.73(a)(2)(ii)(B)

D 50.73(a)(2)(viii)(B) 1 D

D D

D 20.2203(a)(1) 20.2203(a)(4) 50.73(a)(2)(iii) 50.73(a)(2)(ix)(A)

D 20.2203(a)(2)(i)

D 50.36(c)(1)(i)(A)

D 50.73(a)(2)(iv)(A)

D 5D.73(a)(2)(x) 1 O. Power Level D 20.2203(a)(2)(ii)

D 50.36(c)(1)(ii)(A)

D 50.73(a)(2)(v)(A)

D 73.71 (a)(4)

D 20.2203(a)(2)(iii)

D 50.36(c)(2)

D 50.73(a)(2)(v)(B)

D 73.71 (a)(5)

D 20.2203(a)(2}(iv)

D 50.46(a)(3)(ii)

D 50.73(a)(2)(v)(C)

D 73.77(a)(1) 100 D 20.2203(a)(2)(v)

D 50.73(a)(2)(i)(A)

D 50.73(a)(2)(v)(D)

D 73.77(a)(2)(i)

D 20.2203(a)(2)(vi)

[Z] 50.73(a)(2)(i)(B)

D 50.73(a)(2)(vii)

D 73.77(a)(2)(ii)

I it:&~I{~'.;}Ii1}1{0I\\<i,,,1t1{f;i;sl:il D 50.73(a)(2)(i)(C)

D Other (Specify in Abstract below or in The safety consequence is low since the PORV could perform it's specified safety functions during the time of inoperability.

3.0 CAUSE OF THE EVENT

An apparent cause evaluation determined that the manufacturer provided an AV1 controller with excess grease in the equipment internals. Excess grease was not identified during the receipt inspection nor during post maintenance testing after installation on 01/30/18. The problem did not manifest itself until it failed its operability test on 03/08/18.

4.0 IMMEDIATE CORRECTIVE ACTIONS

The pilot stem was cleaned, and a post maintenance test was successfully completed.

5.0 ADDITIONAL CORRECTIVE ACTIONS

None 6.0 ACTIONS TO PREVENT RECURRENCE There are currently seven installed AV1 positioners at V.C. Summer. The currently installed AV1 positioners are scheduled to be replaced in either 2020 or 2021. Currently procured AV1 positioners were inspected for excessive grease. Receiving instructions for new positioners were revised to include filter inspection during future receipt inspections. The procedure for removal and installation of valves associated with instrumentation was also revised to provide guidance on the inspection of filters for foreign material. The filters act to keep particulates out of the air flow going to the pilot valve assembly. Grease in the filter could indicate excessive grease used during manufacturing.

7.0 SIMILAR EVENTS

None 8.0 MANUFACTURER/MODEL NUMBER The positioner is an AV1 positioner manufactured by ABB.

9.0 ADDITIONAL INFORMATION

None Page 3

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