ML19309F587

Responds to NRC 800228 Ltr Re Violations Noted in IE Insp Repts 50-566/80-03 & 50-567/80-03.Corrective Actions:All Radiographs W/Unacceptable Shim Placement Will Be Reshot

ML19309F587
Person / Time
Site:	Yellow Creek
Issue date:	03/24/1980
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19309F585	List: ML19309F587
References
NUDOCS 8004300096
Download: ML19309F587 (2)

Text

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"_ TENNESSEE VALLEY AUTHORITY 800430 0 dpg CHATTANOOGA, TENNESSEE 37401 Q

400 Chestnut Street Tower II.

March 24, 1980 a

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~ 'm Mr. James P. O'Reilly, Director b

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Office of Inspection and Enforcement w U.S. Nuclear Regulatory Commission c Region II - Suite 3100 101 Marietta Street Atlanta, Georgia 30303

Dear Mr. O'Reilly:

YELLOW CREEK 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 response.

If you have any questions concerning this matter, please get in touch with D. L. Lambert at FTS 854-2581.

Very truly yours, I

TENNESSEE VALLEY AUTHORITY

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L. M. Mills, Ma:1ager Nuclear Regulation and Safety Enclosure cc: Mr. Victor Stello, Jr., Director (Enclosure)

Office of Inspection and Enforcement ,

1 U.S. Nuclear Regulatory Commission Washington,'DC 20555

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g g C MIbb An Equal Opcortunity Employer

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i ENCLOSURE YELLOW CREEK NUCLEAR PLANT UNITS 1 AND 2 RESPONSE 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-A1, Section 17.1A.9, " Measures shall be established to assure that special processes, including---nondustructive testing are controlled and accomplished---in accordance with .tpplicable codes-- ." ASME Code Section II paragraph X3334.4 requires that penetrameters be placed adjacent to the weld seam; in addition paragral h 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 pe'netrameters 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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