ML080450154

Cycle 15 (U1C15) 90-Day Inservice Inspection (ISI) Summary Report

ML080450154
Person / Time
Site:	Sequoyah
Issue date:	02/12/2008
From:	James Smith Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML080450154 (9)

Text

Tennessee Valley Authority, Post Office Box 2000, Soddy-Daisy, Tennessee 37384-2000 February 12, 2008 U.S. Nuclear Regulatory Commission ATTN:

Document Control Desk Washington, D.C.

20555 Gentlemen:

In the Matter of

)

Docket No. 50-327 Tennessee Valley Authority (TVA)

)

SEQUOYAH NUCLEAR PLANT (SQN) - UNIT 1 CYCLE 15 (U1C15) 90-DAY INSERVICE INSPECTION (ISI)

SUMMARY

REPORT In accordance with the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI, Article IWA-6230, TVA is providing the SQN ISI Summary Report within 90 days from completion of the inspections performed during the U1C15 refueling outage.

The summary report contains an overview of the inservice examination results that were performed on ASME Class 1 and 2 components up to and including the U1C15 refueling outage during the first inspection period of the third 10-year inspection interval.

The enclosure contains the Owner's Activity Report, an abstract of examinations and tests (Table 1), evaluation of conditions for continued service (Table 2),

repair and replacement activities (Table 3), and the ASME Section XI, subsection IWE steel containment inspections.

This report is being provided in accordance with ASME Section XI and Code Case N-532-1.

This report does not contain TVA commitments.

Please direct any questions concerning this issue to me at (423) 843-7170 or Russell R. Thompson at (423) 843-6672.

Sincerely, James D. Smith Manager, Site Licensing and Industry Affairs Enclosures cc:

See page 2 Printed on recycled paper

U.S. Nuclear Regulatory Commission Page 2 February 12, 2008 cc (Enclosures):

Mr. Thomas H. Boyce, Senior Project Manager U.S. Nuclear Regulatory Commission Mail Stop 08G-9a One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2739

U.S. Nuclear Regulatory Commission Page 3 February 12, 2008 RRT:JWP:KTS cc (Enclosures):

Mr. Thomas H. Boyce, Senior Project Manager U.S. Nuclear Regulatory Commission Mail Stop 08G-9a One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2739 G.Arent,EQB1B-WBN W. R. Campbell, Jr., LP 3R-C C. R. Church, POB 2B-SQN J. E. Cipriani, OPS 4E-SQN T. P. Cleary, OPS 4A-SQN J. R. Douet, LP 3R-C K. R. Jones, OPS 4A-SQN L. E. Nicholson, BR 4X-C NSRB Support, LP 5M-C M. R. Purcell, BR 4X-C H. R. Rogers, LP 3R-C S. A. Vance, ET 10A-K E. J.Vigluicci, ET10A-K WBN Site Licensing Files, ADM 1L-WBN EDMS, WT CA-K l:License/ASME ISI/U1C15 90-Day ISI Summary Report

ENCLOSURE TENNESSEE VALLEY AUTHORITY (TVA)

SEQUOYAH NUCLEAR PLANT (SQN)

UNIT 1 ASME SECTION XI INSERVICE INSPECTION

SUMMARY

REPORT FROM UNIT 1 CYCLE 15

FORM OAR-1 OWNER'S ACTIVITY REPORT Report Number U1C15RFO Owner TVA Nuclear Power Group. 1101 Market Street. Chattanooga. TN 37402-2801 (Name and Address of Owner)

Plant Sequoyah Nuclear Plant, P.O. Box 2000, Soddy-Daisy, TN 37384-2000 (Name and Address of Plant)

Unit No.

1 Commercial service date July 1. 1981 Refueling Outage no. U1C15 (if applicable)

Current Inspection Interval Third Ten Year Inspection Interval (1st, 2nd, 3rd, other)

Current Inspection Period First Period (1st, 2nd. 3rd)

Edition and Addenda of Section XI applicable to the inspection plans 2001 Edition through 2003 Addenda Date and Revision of inspection plan Inspection Scan Plan Revision 1 dated 1/29/08 Edition and Addenda of Section XI applicable to repairs and replacements, if different than the inspection plan Same as above CERTIFICATE OF CONFORMANCE I certify that the statements made in this Owner's Activity Report are correct, and that the examinations, tests, repairs, replacement, evaluations and corrective measures represented by this report conform to the requirements of Section XI.

Certificate of Authorizatiop.No.

NA Expiriation Date NA

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Date CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Tennessee and employed by HSB CT of Hartford. Connecticut have inspected the items described in this Owner's Activity Report and state that to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirement of Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations, tests, repairs, replacements, evaluations, and corrective measures described in this report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this Inspection.

Commissions.

National Board, State, Province and Endorsements Dat6 Jam. 2^1 ZooS This form (E00127) may be obtained (rom the Order Dept., ASME. 22 Law Drive. Box 2300, Fairfield, NJ 07007-2300

TABLE 1

ABSTRACT OF EXAMINATIONS AND TESTS Examination Category B-A B-B B-D B-F B-G-1 B-G-2 B-J B-K B-L-1 B-L-2 B-M-2 B-N-1 B-N-2 B-N-3 B-0 B-P B-Q C-A C-B C-C C-D C-F-1 C-F-2 C-G C-H D-A D-B F-A R-A Total Examinations Required for The Interval 14 5

36 NA 241 78 NA 7

1 1

6 1

6 1

2 6

NA 17 12 33 16 NA NA NA 30 30 21 315 69 Total Examinations Credited for This Period 0

0 4

NA 0

3 NA 1

0 0

2 0

0 0

0 1

NA 0

0 4

0 NA NA NA 7

1 2

41 13 Total Examinations Credited (%)

For The Period 0

0 67 NA 0

18 NA 50 0

0 33 0

0 0

0 100 NA 0

0 57 0

NA NA NA 70 11 28 45 59 Total

• Examinations Credited (%) To Date for The Interval 0

0 11 NA 0

3 NA 14 0

0 33 0

0 0

0 16 NA 0

0 12 0

NA NA NA 23 3

9 13 18 Remarks Notel Note 4 Note 2 Note 2 Note 4 Note 2 Note 2 Note 1

Notel Note 1

Note 5 Note 6 Note 1

Note 4 Note 4 Note 7 Notes:

1.

Deferral to the end of the interval is permissible.

2 The examinations is this category are event related.

They are only required if a subject pump or valve is disassembled during a maintenance activity.

3.

This is the first outage in the first period of the Third Interval.

Another outage is scheduled in this period.

4.

B-F, B-J, C-F-1, and C-F-2 welds are include in the Risk Informed Category R-A.

5.

The RCS leakage test is performed every outage.

6.

B-Q examinations of Steam Generator tubing is governed by plant Technical Specifications.

7.

There are no C-G welds.

TABLE 2 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category Item Number Item Description Flaw Characterization (IWA-3300)

Flaw or Relevant Condition Found During Scheduled Section XI Examination or Test (Yes or No)

There are no items to report for this cycle.

TABLE 3 ABSTRACT OF REPAIRS, REPLACEMENTS, OR CORRECTIVE MEASURES REQUIRED FOR CONTINUED SERVICE Code Class 1

Repair, Replacement, or Corrective Measure Repair Item Description Pressurizer Nozzle Description of Work Removed indication by grinding Flaw or Relevant Condition Found During Scheduled Section XI Examination or Test (Yes/No)

Yes Date Completed 12/14/07 Repair/Replacement Plan Number WO 06-775290-002

REPORTING REQUIRED BY 10 CFR 50.55a(b)(2)(ix)

ASME Section XI, Subsection IWE Steel Containment Vessel Inspection Program 10 CFR 50.55a(b)(2)(ix) requires the reporting of inaccessbile areas and additional examinations identified during the performance of the ASME Section XI, Subsection IWE Steel Containment Vessel Inspection Program.

For the examinations performed during the Unit 1 Cycle 15 Refueling Outage, there were no inaccessible areas identified.

There were no additional examinations required as well.