IR 05000327/1980021
| ML19337A934 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 07/18/1980 |
| From: | Herdt A, Modenos L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19337A927 | List: |
| References | |
| 50-327-80-21, IEB-79-14, NUDOCS 8010010028 | |
| Download: ML19337A934 (5) | |
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION g
a REGION 11
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101 MARIETTA ST., N.W., SulTE 3100 g
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ATLANTA, GEORGIA 30303
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Report No. 50-327/80-21 Licensee:
Tennessee Valley Authority
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500A Chestnut Street Chattanooga, TN 37401 Facility Name: Sequoyah Nuclear Plant License No. DPR-77 Inspection at Seguoyah Nuclear Plant near Chattanooga, Tenn.
7//F/fd Inspector:
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Date Signed
/c 7/6/So Approved y:
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A srdE, Section Chief, RCES Branch Date Signed
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s SUMMARY Inspection on June 24-26, 1980 Areas Inspected, This routine announced inspection involved 20 inspector-hours onsite in the area of seismic analysis for as-built safety-related piping systems (IE Bulletin
79-14).
Results Of the one area inspected, 1 item of noncompliance was found (Infraction-Failure to establish procedures for special inspection program paragraph 5).
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DETAILS
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1.
Persons Contacted
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Licensee Employees
- J. M. Ballentine - Plant Superintendent
- L. M. Mills - Manayar, Nuclear Safety & Regulation
- J. R. Knight - OEDL, QA Manager
- A. W. Crevasse - Power QA Manager
- J. R. Bynum - Assistant to Plant Superintendent
- R. H. Ector - Assistant Outage Director
- T. G. Tyler - Nuclear Safety Evaluator
- R. E. Whitt - Assistant QA Manager
- A. L. McLeod - Information Officer
- W. J. Glasser - Power QA Coordinator
- D. O. McCloud - QA Supervisor
- E. Burke - Supervisor, EIIU
- R. C. Miles - Supervisor, QCRU
- D. W. Mack - Assistant Construction Engineer
- R. D. Guthrie - Civil Engineer
- V. D. Lee - Mechanical Engineer
- M. A. McBurnett - Nuclear Engineer NRC Resident Inspectors
- W. T. Cottle
- S. D. Butler
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on June 26, 1980 with those persons indicated in Paragraph I above.
3.
Licensee Action on Previous Inspection Findings See Paragrapd 5 4.
Licensee Action on Inspector Followup Item (Open) Followup Item No. 327/80-15-02 identified an additional support not shown on the design drawing in the Auxiliary Feedwater System. As a result of further inspections by SNP inspectors, 14 additional supports not shown on design drawings were found installed out of 80 isometrics. These results'
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concluded the NRC inspector tc request from TVA a letter of commitment to implement this verification for as-built supports for all sites under construction.
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5.
(0 pen) Seismic Analysis for As-Built Safety-Related Piping Systems (IE
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The purpose of this inspection was to review the data of the inspection and evaluations conducted by TVA personnel in satisfying the * specific requirements of the Immediate Action Letter (IAL) issued on April 29, 1980 and to resolve further inspection requirements needed to satisfy IEB 79-14.
The TVA inspection program to satisfy the IAL was divided into three types of inspections as follows:
Detail Hangers reviewed (723)
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Inside Containment (290)
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Outside Containment (433)
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Physical Piping Drawings - 8 systems outside containment all require-ments needed to satisfy IEB 79-14
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c.
Pipe Analysis Isometric walkdown of piping on 80 isometrics inside containment All discrepancies were summarized by TVA and the results of these incrac-tions were reviewed by the inspector. The following detailed packages from each group were selected and reviewed by the inspector for confirmation of
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the requirements set forth in procedure Maintenance Instruction MI-6.17
" Instructions for Implementation of NRC IEB 79-14".
Detail Hangers Reviewed System No. 70 Package No. 25 Isometric Drawing No. EDS-0600102-04-01 Rev. 4 System No. 4 Package No. 39 Isometric Drawing No. 47K432-50-R4 System No. 68 Package No. 16 Isometric Drawing No. EDS-0600102-13-03 Rev. 7 System No. 74 Package No. 5 Isometric Drawing No. EDS-0600102-09-11 Rev. 4 System No. 3 Package No. 58 Isometric Drawing No. 47K427-54-R2 Physical Piping Drawings System No. 70 Package No. 42P Drawing Nos. 47W-464-6-R22; 47W-464-3-R18; 47K-464-51-R1
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System No. 72 Package No. 29P
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Drawing Nos. 47W-437-6-R11; 47W-437-2-R14; 47W-437-1-R17 System No. 3 Package No. 75P Drawing Nos. 47W-427-4-R10; 47W-427-3-R13
Pipe Analysis Isometric Walkdown System No. 15 Package No. 28 Isometric No. EDS-0600102-07-02 Rev. 7 System No. 3 Package No. 22
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Isometric No. EDS-0600102-05-02 Rev. 4 During the review of these packages it was revealed that the pipe analysis isometric walkdown and the engineering evaluations conducted for the detail hangers reviewed to determine the category of severity of a discrepency were accomplished without any approved written procedures.
The failure to have approved written procedures for conducting the special
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activities mentioned above, appears to be noncompliance with Criterion V of Appendix B,10CFR 50 and Technical Specifications Section 6.8.1 and is iden-tified as an infraction, Item No. 327/80-21-01, Failure to establish procedures for special inspections.
The inspector held o*scussions with the licensee's management and with the resident NRC inspector on the finding of this inspection, and recommended the follocing conditions be met to satisfy the IAL and the requirements of the bulletin:
All discrepencies identified as category 1 (discrepancies that have a a.
definite potential for causing a loss of pressure bondary) and all inaccessible category 2 (descrepencies having a minimum potential for causing a loss of pressure bondary) supports will be repaired before initial criticality.
b.
All safety related systems analyzed by the alternate criteria method cbove 2 1/2-inch in diameter have to be inspected to satisfy the requirements of the bulletin.
Identify the systems and the time frame in which the remaining systems c.
witll be inspected d.
Valve weight and material verification will be performed against the input into the computer program for the 8 systems identified stress under the physical piping drawings plus on a sampling basis for the remaining systems to be inspected.
e.
All remaining inspections and evaluations will be done by approved written procedures. These procedures will identify the start point of the 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> addressed by the bulletin relative to when a discrepancy is being evaluate..
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The licensee agreed to submit a letter to the NRC detailing their response to the IAL and when and how they would satisfy the conditions
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above.
The NRC inspector informed the licensee ' that a letter of confirmation would be forth coming after approval of their letter.
This IE Bulletin 79-14 remains open until all inspections and evalua-tions are completed and evaluated by the NRC.
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