ML20044E455
| ML20044E455 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 05/18/1993 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20044E448 | List: |
| References | |
| 50-327-93-12, NUDOCS 9305250026 | |
| Download: ML20044E455 (2) | |
Text
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ENCLOSURE 1 NOTICE OF VIOLATION Tennessee Valley Authority Docket No.: 50-327 Sequoyah License No.: DPR-77 During an NRC inspection conducted on April 5-9, 1993, a violation of NRC requirements was identified.
In accordance with the " General Statement of Policy and Procedure for NRC Enforcement Actions," 10 CFR Part 2, Appendix C, the violation is listed below.
10 CFR 50.55a(g) requires, in part, that, "throughout the service life of a boiling or pressurized water-cooled nuclear power facility, components....
must meet the requirements.... set forth in Section XI of editions of the ASME Boiler and Pressure Vessel Code..........."
ASME Section XI, Paragraph IWA-2222, requires that, " liquid penetrant examination shall be conducted in accordance with Article 6 of ASME Section V".
Paragraph T-650(c) of Article 6 of Section V of the ASME Boiler and Pressure Vessel Code, the applicable Code, requires, in part, that, " broad areas of pigmentation that could mask indica-tions of discontinuities are unacceptable, and such areas shall be cleaned and reexamined".
Paragraph 5.3 of licensee procedure N-PT-9, Revision 6, the applicable liquid penetrant examination procedure, requires, in part, that, "..........
no surface irregularities shall exist that could mask indications caused by unacceptable discontinuities".
l Contrary to the above, on April 6, 1993, liquid penetrant testing was not accomplished in accordance with the above code and procedure requirements, in that, two 10" diameter Safety Injection System pipe welds (S1S-295 and SIS-296) were liquid penetrant inspected and accepted by the nondestructive testing examiner without removal of surface irregularities at the weld edges.
These surface irregularities resulted in broad pigmentation (bleedout of penetrant) at the weld edges.
Subsequent weld preparation and re-penetrant testing revealed that the surface irregularities and bleedout had masked a code rejectable (5/8" long) linear indication at the edge of weld SIS-295.
This is a Severity Level IV violation (Supplement I).
Pursuant to the provisions of 10 CFR 2.201, Tennessee Valley Authority is hereby required to submit a written statement or explanation to the U.S.
Nuclear Regulatory Commission, ATTN:
Document Control Desk, Washington, D.C.
20555 with a copy to the Regional Administrator, Region II, and a copy to the NRC Resident Inspector at the facility that is the subject of this Notice, within 30 days of the date of the letter transmitting this Notice of Violation (Notice). This reply should be clearly marked as a " Reply to a Notice of Violation" and should include for each violation:
(1) the reason for the violation, or, if contested, the basis for disputing the violation, (2) the corrective steps that have been taken and the results achieved, (3) the corrective steps that will be taken to avoid.further violations, and (4) the date when full compliance will be achieved.
If an adequate reply is not I
9305250026 930518
{DR ADOCK 05000327 e
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l Tennessee Valley Authority 2
Docket No.: 50-327 Sequoyah License No.: DPR-77 l
received within the time specified in this Notice, an order or Demand for Information may be issued as to why the license should not be modified, suspended, or revoked, or why such other action as may be proper should not be taken. Where good cause is shown, consideration will be given to extending i
the response time.
Dated at Atlanta, Georgia this 18th day of May 1993 i
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