ML19309A488

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Forwards Response to Infraction Noted in NRC 800228 Ltr Re IE Insp Repts 50-566/80-03 & 50-567/80-03.Radiographs W/Unacceptable Shim Placement Will Be Reshot.Film Interpreters & Radiographers Instructed in Shim Placement
ML19309A488
Person / Time
Site: Yellow Creek  Tennessee Valley Authority icon.png
Issue date: 03/24/1980
From: Mills L
TENNESSEE VALLEY AUTHORITY
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8003310356
Download: ML19309A488 (2)


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TENNESSEE VALLEY AUTHORITY CH ATT ANOOGA. TENNESSEE 374ot 400 Chestnut Street Tower II March 24, 1960 i

Mr. James P. 'Reilly, Director Office of Inspe tion and Enforcement i l

U.S. Nuclear Reg atory Commission hagion II - Suits 00 101 Marietta Street Atlanta, Georgia 30 3

Dear Mr. O'Reilly:

YLLLOW CRLEK NUCLEAR PLANT UNITS 1 AND 2 - NRC REGION II LETTER RII:WPK 50-566/80-03 AND 50-567/80 RESPONSE TO INFRACTION )

The subject letter dated February 28, 1980, cited TVA with one infraction. Enclosed is our respor.ne.

If you have any questions concerning this matter, please get in touch i with D. L. Lambert at FTS 854-2561.

Very truly yours, TLNNESSEE VALLEY AUTHORITY L. M. Mills, Manager Nuclear Regulation and Safety Enclosure cc: Mr.VictorStello,Jr., Director (Enclosure)v/

Office of Inspection and Enforcement U.S. huclear Regulatory Commission Washington, DC 20555 0

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An Equal Cocortunity Employer 800331o g5

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ENCLOSURE YELLOW CREEK NUCLEAR PLANT UNITS 1 AND 2 fRESPONSE TO NRC INFRACTION 50-566/80-03-01 AND 50-567/80-03-01 Infraction

. As required by 10 CFR 50 Appendix B, Criterion IX and as implemented by Tennessee Valley Authority (TVA) Topical Report TVA-TR-75-Al, Section -

17.1A.9, " Measures shall be established to assure that special processes, including---nondestructive testing are controlled and accouplished---in accordance'with applicable codes-- ." ASME Code Section.II paragraph X3334.4 requires that penetrameters be placed adjacent to the weld seam; in addition paragraph NE-5211 requires full radiography for longitudinal butt welded containment joints.

Contrary.to the above, on February 7, 1980, seven radiographs of containment structural butt welds exhibited penetrameters and shims extending into the weld obscuring part of the area of interest.

Corrective Actions Taken and Results Achieved All radiographs made before February 22, 1980, (6,849) have been reexamined for similar deficiencies, and an additional 102 were found and nonconformed.

All radiographs with unacceptable shim placement will be reshot; however, two of the cited radiographs (seam Al increments 1 to 2 and seam A2 increments 20 to 21) were reevaluated and.found to be acceptable.

Steps Taken to Avoid Further Recurrence In order to prevent a recurrence, the film interpreters and radiographers have been instructed in the requirements of shim placement.

Date of Full Compliance Full compliance will be achieved on August 29, 1980.

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