ML20034B772

Forwards Safety Evaluation & Technical Evaluation Rept for First 10-yr Interval Inservice Insp Program.Nrc Agrees & Adopts Contractor Conclusions & Recommendations

ML20034B772
Person / Time
Site:	Sequoyah
Issue date:	04/19/1990
From:	Black S Office of Nuclear Reactor Regulation
To:	Kingsley O TENNESSEE VALLEY AUTHORITY
Shared Package
ML20033E006	List: ML20033E005 ML20034B772 ML20034B773
References
TAC-59458, NUDOCS 9004300356
Download: ML20034B772 (3)

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I Docket No. 50-328 i

Mr. Oliver D. Kingsley, Jr.

I Senior Vice President, Nuclear Power Tennessee Valley Authority i

6N 38A lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801

Dear Mr. Kingsley:

$UBJECT: FIRST 10-YEAR INTERVAL INSERVICE INSPECTION PROGRAM (TAC 59458)

SEQUOYAH NUCLEAR PLANT, UNIT 2 1

submitted Revision 13 of the fIrst 10-Year Interval Inservice Inspect (ion (ISI) l In the letter dated November 9 1988, the Tennessee Valley Authority TVA)

Program for Sequoyah, Unit 2.

The program was submitted for review and evalua-l cion of its compliance witn the 1977 Edition with addenda through Summer 1989 of Section XI of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (Code) and the NRC-imposed augmented and accelerated field weld inspections. TVA responded to questions from the NRC staff on this program in its letter dated May 5, 1989.

The NRC-imposed augmented and accel-ersted field weld inspection program is discussed in Section 3.5 of NUREG-1232, Volume 2 and its Supplement, which were issued in the staff's letters dated May 18, 1988 and February 3 1989, respectively, j

The staff, with technical assistance from the Science A)plications Interna-tional Corporation (SAIC), has reviewed and evaluated tie ISI Program for Unit 2 and the requests for relief from the requirements of the Code for.

Unit 2. Based on the information submitted, the staff agrees with and adopts the contractor's conclusions and recommendations presented in the attachment to a

the enclosed Safety Evaluation Report (SER). A list of all the applicable TVA submittals is given in the contractor's report, i

For the Unit 2 ISI Program TVA submitted 14 requests for relief from the L

requirements of the Code:

151-1 to 151-14. As discussed in the enclosed SER, i

we have determined that these requests are acceptable except for the following i

four requests:

ISI-2, ISI-7, ISI-11, and 151-12. Of these four requests, one was withdrawn (ISI-11), one is not needed (ISI-12), and two are postponed (ISI-2and151-7).

Granting relief from Code requirements is authorized by law where (1) the pro-posed a ternative would provide an acceptable level of quality and safety j

(pursuant to 10 CFlt 50.55a(a)(3)(1)) and (2) the Code requirement is impracti-cal and the alternative requirement will not endanger life or property, or the connon defense and security, and is in the public interest (pursuant to 10 CFR i

50.55a(g)(6)(1)).

For two requests, ISI-9 and 151-14, we have determined that the proposed alternatives to the Code requirements will provide an acceptable level of quality and safety at Unit 2.

For the remaining eight requests, b

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Mr. Oliv:r D. Kingsley, Jr. -

ISI-1, 151-3 to ISI-6, ISI-8, 151-10, and 151 13, we have determined that the Code requirements are impractical to perform at Unit 2 and the alternative requirements will not, endanger life or property, or the common defense and security, and are in the public interest considering the burden that could result on TVA if the Code requirements were imposed on Unit 2.

i Therefore,pursuantto10CFR50.55a(a)(3)(1)and10CFR50.55a(g)(6)(1)ofthe Connission's regulatiops TVA is granted the following requested relief from the Code, as documentet IntheenclosedSER:

requests for relief 151-1 ISI-3 to ISI-6, ISI-8 to 151-10, ISI-13, and 151 14.. Where the relief request status is " Granted with augmenced requirements," the augmented requirements are as reconmended in the SER. The granting of these relief requests is contingent upon all other requirements of Section XI being met for inservice tests and system pressure tests of the components affected by these relief requests.

Any significant program changes such as additional requests for relief should be submitted for staff review and should not be implemented prior to approval by the staff.

A summary of the requirements and the bases for granting the relief requests are contained in the enclosed SER. We concluded that the Sequoyah Nuclear Plant, Unit 2, Inservice Inspection Program, Revision 13, with the additional information in the May 5, 1989 letter and the reliefs granted constitute part of the basis for TVA meeting the requirements of 10 CFR 50.55a and the Unit 2 Technical Specifications at Sequoyah, Unit 2.

With the reliefs granted, we also conclude that Unit 2 is in compliance with the Code of record for Unit 2, cited above in the first paragraph.

Sincerely, Original signed by Suzanne Black, Assistant Director for Projects TVA Projects Division Office of Nuclear Reactor Regulation

Enclosure:

Safety Evaluation Report With SAIC Technical Evaluation Report cc w/ enclosure:

See next page Distribution Docket file TQuay JBrady OGC NRC PDR BDLiaw LA BGrires Local PDR SBlack JDonohew EJordan SQN Reading RPierson DSmith ACRS(10)

ADSP Reading BWilson DTerao GPA/CA DCrutchfield LWatson OGC D

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lR Mr. Oliver D. Kingsley, Jr. CC:

Mr. Marvin Runyon, Chaiman Mr. Joseph Bynum, Acting: Site Director Tennessee Valley Authority Sequoyah Nuclear Plant ET 12A 7A Tennessee Valley Authority.

400 West Sumit Hill Drive P. O. Box 2000 Knoxville, Tennessee 37902 Soddy Daisy. Tennessee 37379 I-Mr. C, H. Dean, Jr., Director Mr. Mark J. Burzyr.sti Tennessee Valley Authority Site Licensing Manager ET 12A 11A Sequoyah Nuclear Plant 400 West Summit Hill Drive P. O. Box 2000.

Knoxville, fennessee 37902 Soddy Daisy. Tennessee 37379-Mr. John B. Water L lirector County Judge Tennessee Valley Authority Hamilton County Courthouse-ET 12A 9A Chattanooga, Tennenee 37402 400 West Sumit Hill Drive a

Knoxville, Tennessee 37902 Regional Administrator, Region II U.S. Nuclear. Regulatory Commission Mr. W. F. Willis

.101 Marietta Street, N.W.

Chief Operating Officer Atlanta, Georgia '30323 ET 128 168 400 West Sumit Hill Drive Mr. Kenneth M. Jenison.

K.1oxv111e, Tennessee 37902 Senior Resident Inspector Sequoyah Nuclear Plant

-l General Counsel U.S. Nuclear Regulatory Comission i

Tennessee Valley Authority 2600 Igou Ferry. Road 400 West Sumit 11111 Drive Soddy Daisy, Tennessee. 37379 ET 118 33H l

Knoxville, Tennessee 37902 Mr.-Michael H. Mobley, Director Division of Radiological. Health Mr. Dwight Nunn T.E.R.R.A. Building, 6th Floor Vice President, Nuclear Engineering 150 9th Avenue North I

Tennessee Valley Authority Nashville, Tennessee -37219-5404 1

6N 38A Lookout Place 1101 Market Street Dr. Henry Myers, Science Advisor Chattanooga, Tennessee 37402-2801 Comittee on Interior and Insular Affairs i

Dr. Mark 0. Medford -

U.S. House of Representatives Vice President and Nuclear Washington, D.C.

20515 i

Technical Director-Tennessee Valley Authority Tennessee Valley Authority i

6N 38A Lookout Place Rockville Office l

Chattanooga,~ Tennessee 37402-2801 11921 Rockville Pike i

Suite 402 i

Mr. Edward G. Wallace Rockville, Maryland 20852 Manager Nuclear Licensing j

and Regulatory Affairs Tennessee Valley Authority i

SN 157B Lookout Place Chattanooga, Tennessee 37402-2801 l

l