ND-21-0277, ITAAC Closure Notification on Completion of ITAAC 2.5.06.02 (Index Number 574)

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ITAAC Closure Notification on Completion of ITAAC 2.5.06.02 (Index Number 574)
ML21116A183
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 04/26/2021
From: Yox M
Southern Nuclear Operating Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
ND-21-0277
Download: ML21116A183 (6)


Text

Southern Nuclear APR 2 6 2021 Docket No:

52-025 Michael J, Vox Regulatory Affairs Director Vogtle 3 & 4 7825 River Road Waynesboro, GA 30830 706-848-6459 tel U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001 ND-21-0277 10CFR 52.99(c)(1)

Southern Nuclear Operating Company Vogtle Electric Generating Plant Unit 3 ITAAC Closure Notification on Completion of ITAAC 2.5.06.02 flndex Number 5741 Ladies and Gentlemen:

In accordance with 10 CFR 52.99(c)(1), the purpose of this letter is to notify the Nuclear Regulatory Commission (NRC) of the completion of Vogtle Electric Generating Plant (VEGP) Unit 3 Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC) Item 2.5.06.02 [Index Number 574], for verifying that the data obtained from the metal impact monitoring sensors can be retrieved in the Main Control Room. The closure process for this ITAAC is based on the guidance described in NEI 08-01, "Industry Guideline for the ITAAC Closure Process under 10 CFR Part 52", which was endorsed by the NRC in Regulatory Guide 1.215.

This letter contains no new NRC regulatory commitments. Southern Nuclear Operating Company (SNC) requests NRC staff confirmation of this determination and publication of the required notice in the Federal Register per 10 CFR 52.99.

If there are any questions, please contact Kelli Roberts at 706-848-6991.

Respectfully submitted.

Michael J. Vox ^

Regulatory Affairs Director Vogtle 3 & 4 Enclosure Vogtle Electric Generating Plant (VEGP) Unit 3 Completion of ITAAC 2.5.06.02 [Index Number 574]

MJY/SEP/sfr

U.S. Nuclear Regulatory Commission ND-21-0277 Page 2 of 3 To:

Southern Nuclear Operating Company/ Georgia Power Company Mr. Peter P. Sena III (w/o enclosures)

Mr. D. L. McKinney (w/o enclosures)

Mr. M. D. Meier (w/o enclosures)

Mr. G. Chick Mr. S. Stimac Mr. P. Martino Mr. M. J. Yox Mr. A. S. Parton Ms. K. A. Roberts Mr. C. T. Defnall Mr. C. E. Morrow Mr. J. M. Fisher Mr. R. L. Beiike Mr. S. Leighty Ms. A. C. Chamberlain Mr. J. C. Haswell Document Services RTYPE: VND.LI.L06 File AR.01.02.06 cc:

Nuclear Reaulatorv Commission Ms. M. Bailey (w/o enclosures)

Mr. M. King Ms. A. Veil M

M M

M C. P. Patel G. J. Khouri C. J. Even B. J. Kemker Ms. N. C. Coovert Mr. C. Welch Mr. J. Gaslevic Mr. O. Lopez-Santiago Mr. G. Armstrong Mr. M. Webb Mr. T. Fredette Mr. C. Santos Mr. B. Davis Mr. J. Vasquez Mr. J. Eargle Mr. E. Davidson Mr. T. Fanelli Mr. S. Rose Ms. K. McCurry Mr. J. Parent Mr. B. Griman

U.S. Nuclear Regulatory Commission ND-21-0277 Page 3 of 3 Oaiethorpe Power Corporation Mr. R. B. Brinkman Mr. E. Rasmussen Municipal Electric Authority of Georgia Mr. J. E. Fuller Mr. 8. M. Jackson Daiton Utilities Mr. T. Bundros Westinahouse Electric Company. LLC Dr. L. Oriani (w/o enclosures)

Mr. D. 0. Durham (w/o enclosures)

Mr. M. M. Corletti Mr. Z. 8. Harper Mr. J. L. Coward Other Mr. 8. W. Kline, Bechtel Power Corporation Ms. L. Matis, Tetra Tech NUS, Inc.

Dr. W. R. Jacobs, Jr., Ph.D., CDS Associates, Inc.

Mr. 8. Roetger, Georgia Public Service Commission Mr. R. L. Trokey, Georgia Public Service Commission Mr. K. C. Greene, Troutman Sanders Mr. 8. Blanton, Baich Bingham

U.S. Nuclear Regulatory Commission ND-21-0277 Enclosure Page 1 of 3 Southern Nuclear Operating Company ND-21-0277 Enclosure Vogtle Electric Generating Plant (VEGP) Unit 3 Completion of ITAAC 2.5.06.02 [Index Number 574]

U.S. Nuclear Regulatory Commission ND-21-0277 Enclosure Page 2 of 3 ITAAC Statement Desion Commitment:

2. Data obtained from the metal impact monitoring sensors can be retrieved in the MCR.

Inspections. Tests. Analyses:

Inspection will be performed for retrievability of data from the metal impact monitoring sensors in the MCR.

Acceptance Criteria:

Data obtained from the metal impact monitoring sensors can be retrieved in the MCR.

ITAAC Determination Basis An inspection was performed in accordance with preoperational test, 3-SMS-ITPP-501 (Reference 1), to ensure retrievability of data from the metal impact monitoring sensors in the Main Control Room (MCR). This inspection was performed to verify that data obtained from the metal impact monitoring sensors (SMS-YE001 through SMS-YE016) can be retrieved in the MCR.

The inspection utilized one of the Operator stations in the MCR to navigate to the Special Monitoring System (SMS) loose parts screen. The MCR monitor was verified to be capable of displaying the 16 SMS accelerometers. Testing was performed using a calibrated impact hammer within 3 feet of the SMS sensor that was tested and an inspection was performed to verify a value change was displayed when each sensor was impact tested.

The inspection documented in the Unit 3 preoperational test 3-SMS-ITPP-501 (Reference 1) using Work Order 1059870 (Reference 2) confirmed that data obtained from the metal impact monitoring sensors could be retrieved in the MCR. The results are documented in SV3-SMS-ITR-800574 (Reference 3) and provide evidence that the ITAAC Acceptance Criteria was met.

References 1 through 3 are available for NRC inspection as well as ITAAC 2.5.06.02 Completion Package (Reference 4).

ITAAC Finding Review In accordance with plant procedures for ITAAC completion, Southern Nuclear Operating Company (SNC) performed a review of all ITAAC findings pertaining to the subject ITAAC and associated corrective actions. This review found there were no relevant ITAAC findings associated with this ITAAC. The ITAAC completion review is documented in the ITAAC Completion Package for ITAAC 2.5.06.02 (Reference 4) and is available for NRC review.

U.S. Nuclear Regulatory Commission ND-21-0277 Enclosure Page 3 of 3 ITAAC Completion Statement Based on the above information, SMC hereby notifies the NRG that ITAAC 2.5.06.02 was performed for VEGP Unit 3 and that the prescribed acceptance criteria were met.

Systems, structures, and components verified as part of this ITAAC are being maintained in their as-designed, ITAAC compliant condition in accordance with approved plant programs and procedures.

References (available for NRG inspection)

1. 3-SMS-ITPP-501, Rev. 1.4, "Special Monitoring System Acceptance Test Procedure"
2. Work Order 1059870, "(ITAAC) Perform PreOperational Testing For SV3-SMS-JD-MIM01, Metal Impact Monitoring Cabinet; and SV3-SMS-JD-DMS01, Vibration Monitoring Cabinet"
3. SV3-SMS-ITR-800574, Rev. 0, "Unit 3 SMS Metal Impact Monitoring Sensors Data Displayed in MCR: ITAAC 2.5.06.02"
4. 2.5.06.02-U3-CP-Rev0, "ITAAC Completion Package"