ML19323J254

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Forwards Response to NRC Re Noncompliances Noted in IE Insp Rept 50-327/80-15.Corrective Actions:Detailed Review of 450 Supports on Safety Sys Outside Containment Initiated & Insp of Piping Configuration Undertaken
ML19323J254
Person / Time
Site: Sequoyah Tennessee Valley Authority icon.png
Issue date: 06/12/1980
From: Mills L
TENNESSEE VALLEY AUTHORITY
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8006190586
Download: ML19323J254 (2)


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l TENNESSEE VALLEY AUTHORITY CH ATTANOOGA, TENNESSEE 374ot 400 Chestnut Street Tower II i

June 12, 1980 l

i Mr. James P. 0 illy, Director Office of Inspe ion and Enforcement U.S. Nuclear Reg atory Commission Region II - Suite 00 101 Marietta Street Atlanta, Georgia 30 03

Dear Mr. O'Reilly:

SEQUOYAH NUCLEAR PLANT UNIT 1 - NRC-0IE REGION II LETTER RII:LM 50-327/d0 INSPECTION REPORT - RESPONSE TO Ih7RACTION 1

The subject letter dated March 21, 1980, cited TVA with one infraction in accordance with 10 CFR 2.201.

Enclosed is our response to that infraction. We expecc to submit a report on the results of the program described in the enclosure on June 25, 1980.

If you have any questions concerning this matter, please get in touch with D. L. Lambert at FTS 857-2581.

I Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Manager Nuclear Regulation and Safety Enclosure cc:

Mr. Victor Stello, Jr., Director (Enclosure)

Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission -

Washington, DC 20555 h00/

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8006190 6 8 [

An Ecual Opportunity Employer

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n ENCLOSURE SEQUOYAH NUCLEAR PLANT RESPONSE TO INFRACTION 50-327/80-15-01

. Infraction As required by 10 CFR 50, Appendix B, Criterion V, and implemented by paragraph 6.8.8 of the Technical Specifications " Activities affecting quality shall be prescribed by documented instructions, procedures, or drawings, or a type appropriate to the circumstances and shall be accomplished in accordance with these instructions, procedures or drawings.

Paragraph 7.0, part (A), item 2 of Procedure SNP II No. 66, " Inspection of Supports" states, " Verify that location conforms 'to applicable drawings...",

and Section 9 of SNP II No. 38, states, " Unacceptable gap tolerances and corrective action taken shall be recorded".

Contrary to the above, on April 23-25, 1980, the above procedures were not followed in that portions of five safety-related systems were found with safety-related supports in each system identified to have discrepancies such as: unacceptable gap on SIS-1-H20-9; and AFW-H3-413 did not agree with isometric and detail drawings relative to location. These had been accepted by the QA/QC program.

Corrective Action Taken and Results Achieved All 10 listed discrepancies have been either (1) repaired in the field,

.(2) reviewed and determined to be acceptable in the condition found, or (3) dctermined that the condit.on found was within original design specifications and tole ~rances.

Corrective Steps Which Will Be Taken to Avoid Further Noncompliance TVA has undertaken an extensive program that will uncover any potential Quality Assurance Program problems, as well as find existing problems with installed supports. This program consists of the following.

1.

A detailed review of approximately 270 supports (of 1520 installed) inside containment. These will be analyzed and reviewed as to adequacy of installation and to determine the source of the problem with regard to TVA's Quality Assurance Program.

2.

A walkdown inspection of isometric analysis drawings on all safety systems inside containment to ensure that piping, supports, etc.,

are installed as shown.

3.

A detailed review of approximately 450 supports on safety systems outside containment.

In addition to review for adequacy of instal-lation, checks will be made to ensure that problems found do not deviate-statistically from those found inside containment.

4.

A detailed inspection of piping configuration and all other elements of OIE Bulletin 79-14 on the same portions of the safety-related systems inspected in item 3.

Date When Full Compliance Will Be Achieved TVA expects to complete the program as described above and submit a report by June 25, 1980. The results of this program will establish the date when full compliance-can be achieved. ~ ~

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