IR 05000282/1980011
| ML19344E803 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 07/21/1980 |
| From: | Danielson D, Ward K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19344E802 | List: |
| References | |
| 50-282-80-11, NUDOCS 8009110627 | |
| Download: ML19344E803 (4) | |
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O U.S. IcUCLEAR REGULATORY COMMISSION
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OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
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Report No. 50-282/80-11 License No. DPR-42 Docket No.80-282 Licensee: Northern States Power Company 414 Nicollet Hall Minneapolis, MN Facility Name: Prairie Island Nuclear Generating Plant, Unit 1 Inspection At: Prairie Island Site, Red Wing, MN Inspection Conducted: July 10, 1980 f[#/MO Inspector:
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wDn 7hi o
Approved By:
D. H. Danielson, Chief
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Engineering Support Section 2 Inspection Summary Inspection on July 10, 1980 (Report No. 50-282/80-11)
Areas Inspected: QA/QC program implementing procedures, work activities, and review of records relative to steam generator (SG) tube nondestructive examinations (NDE); IE Bulletin 79-17 and IE Bulletin 80-08 activities.
This inspection involved a total of 4 onsite inspection-hours by one NRC inspe:: tor.
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Results: N 'tems of noncompliance or deviations were identified.
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DETAILS
_frsons Contacted
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Northern States Power Company
- F. Tierney, Plant Manager
- L. Dahlman, Material & Special Processes Specialist The inspector also contacted and interviewed other licensee and contractor employees.
- Denot 's those present at the exit interview.
Licer.see Action on IE Bulletins Refer:
1.
NRC Region III memorandum to NSP Frairie Island 1, 2 (50-282, 50-306) dated 7/27/79 (IE Bulletin No. 79-17).
2.
NSP letter to RIII dated 8/24/79 (Response to IE Bulletin 79-17).
3.
NSP letter to RIII, dated 7/14/79 (Request extension to IE Bulletin 79-17, Unit 1.
4.
NRC Region III memorandum to dSP Prairie Island 1, 2 (50-282, 50-306), dated 4/9/80 (IE Bulletin No. 80-08).
5.
NSP letter tc RIII, dated 7/8/80 (Response to IE Bulletin 8-08 and request for an extension on Unit 2).
l IE Bulletin 79-17 Unit 1 may be completed at the next outage. This is an
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unresolved item (282/80-11-01).
IE Bulletin 80-08 Unit I may be completed at the next outgage. This is an unresolved item (282/S0-11-02).
Functional or Program Areas Inspected 1.
Gent:ral Prairie Island Unit No. I reperienced a primary to secondary steam l
a.
l generator (SG) No. 1-2 tube leak increasing from the 0.04 gpm l
reported June 29, 1980, to 0.229 gpm July 1, 1980. Although the l
Technical Specification limit for continued operation is one gallon
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per minute, the licensee elected to shut the unit down for steam
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generator examination and repair.
b.
Westinghouse Electric Corporation (W) personnel performed eddy cerrent exemination (ET).
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ZETEC interpreted W ET results.
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The ANII was present for the majority of the SG activities.
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2.
Procedures The inspector reviewed the following procedures:
W, Multi-frequency Eddy Current Inspection of Steam Generator a.
Tubing - Preservice and Inservice, MRS 2.4.2 Gen-23, Revision 2, March 1980 b.
W, Installation Procedure, Mechanical Plug in 7/8" 0.D. x 050" Wall Inconel Tubes Using SM-3 Tooling System, TS-SG-80-070, Revision 1, July 1980 W, Installation and Removal of Eddy Current Positioning Devices c.
MRS 2.4.2 GEN-19, Revision 0, July, 1977 d.
W, Installation and Removal of Temporary Nozzle Covers MRS 2.2.2 GEN-2, Revision 3, July, 1979 W, Control of Field Service Activities, OPR 610-3, Revision 1, e.
July 1, 1979 f.
W, Post-Activity Sign-Off for Arca Cleanliness, MRS 2.2.2 GEN-6, Revision 3 g.
NSP, ISI Examination Program Onsite Work Activities, M&SP-1, Revision 0, April 1980 No items of noncompliance or deviations were identified.
3.
NDE Personnel Certifications The inspector reviewed the following NDE certifications in accordance with SNT-TC-1A, 1975 Edition Westinghouse Personnel Name ET G. Testa I
C. Swango II G. Ferenchak II D. Tommarello I
T. Pfarr I
M. Cortese I
V. Burke I-3-
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Zetec Personnel Name ET
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E. Hako II No items of noncompliance or deviations were identified.
4.
Equipment Certifications The inspector verified the adequacy of calibration and certification documents related to the ET of the SG tubes.
No items of noncompliance or deviations were identified.
5.
Work Activities The inspector observed ET and had discussions with W personnel.
In SG 1-2, the hot leg side, row 2, column 21, 10" down into the tube sheet there was a defect found, approximately 1-3/4" long. Approximately 30%
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of the tubes were ET in SG 1-1 and 1-2.
The examination program utilized remotely operated ET techniques and equipment for performing the NDE of the SG tubing.
No items of noncompliance or deviations were identified.
6.
Review of Data Reports The inspector examined and determined that the data reports demonstrated that the QA/QC requirements were met. The required information was available for the ET of the SG tubes.
No items of noncompliance or deviations were identified.
Unresolved Items Unresolved items are matters about which more information is required in order to ascertain whether they are acceptable items, items of noncompliance, or deviations. The unresolved items disclosed during the inspection are discussed in the paragraph " Licensee Action on IE Bulletins".
Exit Interview The inspector met with site representatives (denoted in Persons Contacted paragraph) at the conclusion of the inspectioc. The inspector summarized the scope and findings of thc' inspection noted in this report.
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