IR 05000282/1988015
| ML20154L633 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 09/19/1988 |
| From: | Danielson D, Ward K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20154L623 | List: |
| References | |
| 50-282-88-15, NUDOCS 8809260235 | |
| Download: ML20154L633 (4) | |
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U. S. NUCLEAR REGULATORY C0K'4!SSION REG 10h 11I Report No.:
60-282/n0015(0RS)
Cocket No.: 50-282 License No.: DPR-42 Licensee: Northern States Power Company 414 Nicollet Mall Minneapolis, MN 55401 Facility Name:
Prairie Island Nuclear denerating Plant. Unit 1 Inspection At:
Prairie Island Site, Red Wing, MN Inspection Conducted: September 1-2 and 15-16. 1900 NfN7 Inspector:
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r Approved By:
. Danielson, Chief 6M
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Materials and Processes Section Date Inspection Summary Inspection on September 1-2 and 15-16, 1988 (Peport No. 50-282/88015(DRS))
Areas Inspected:
Routine, unannounced safety inspection of inservice inspection
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(ISI) activities including review of program (73051), procedures (73052),
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observation of work activities (73753), and date review (73755).
Results:
No violations or deviations were identified. The following are the l
the general conclusions reached during the inspection:
The inservice inspection program was properly implemented.
- Personnel perfoming nondestructive examinations aspeared to
be knowledgeable and sonscientious in their work.
Managerrent involvement in inservice inspection was e/ident.
- Activities examined were accomplished in accordance with
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established procedures by qualified perrennel.
8009260235 880919 PDR ADOCK 05000282 G
PNU
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CETAILS 1.
Persons Contacted Nor_thern States Power Company (NSP)
- L. Dahlman, Senior Material and Special Processes Specialist J. Ricker, Superintendent, Material and Special Processes P., Kellerhall, Material ond Special Processes Specialist S. Redner, Material and Special Processes Specialist J. Schanen, Material and Special Processes Specialist J. Bridgeman, Material and Special Processes Sper.ialist Nuclear Regulatory Comission (NRC)
- 0. Hard, Senior Resident inspector Lambert MacGill, Thomas, Inc. (LMT)
D. MacGill, Supervisor, level III CONAM Inspection (CONAM)
B. Marlow, Supervisor Westinghouse Electric Corporation (W)
R. Vollmer, Analyst Hartford Steam Boiler Inspection and Insurance Corrpany (HSB)
P. Fisher AN!! Supervisor T. Waldbilling, ANII The inspector also contacted and interviewed other licensee and contractor employees.
- Deno'is those indiviouals present at the exit interview on Septev r 16, 1988,
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2.
Inservice Inspection (ISI) Un't 1 a.
General This is the first outage of the second period of the second ten-year plan.
(1) Lambert, MacGill, Thecas, Inc. (LMT), C0 HAM Inspection (CONAM),
ard Westinghouse Electric Corporation (W) performed the ISI in accordance with ASME Section,1980 Edition, Winter 1981 Addenda.
The Level II and III personnel UT were qualified at the EPRI NCE Center after September 10, 1985.
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(2) All manual UT was perfom.d by LMT using the pulse-echo UT flaw detection instruments and various angles and MHZ transducers.
Also, on many welds the master / slave ultrasonic system was used.
(3) The eddy current examinations (ET) were performed by CONAM, and the results were evaluated by Westinghouse and CONAM. The ET covered 100% of all accessible tubing within steam generators (W) Nos.11 and 12.
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Program end Procedures The NRC inspector reviewed the ISI program and procedures and found them to be acceptable. NSP made no specific request for relief from the ASME Code in perfcnning this ISI s utage, c.
Review of Data, Audits and Certifications of Material, Equipment
_and Personnel The hRC inspector reviewed documents relating to the fc110 wing:
(1) Ultrasonic instrun,ents, calibration block, transducers and i
couplant certificatiert.
(2) Liquid penetrant, cleaner and developer material certifict.tions.
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(3) Magnetic particle, materials and equipment certifications.
(4) Eddy current equipment certifications.
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(5) NDE persornel certifications in accordance with SNT-TC-1A.
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(6) Audits /Surveillances.
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151 Data Reports.
(8) Eddy Current Reports -
Steam Generator 11 - 9 tubes were plugged, a total of 69
now plugged.
No tube sleeving was perfomed this outage or before.
Steam Generatar 12 - 8 tubes were plugged, a total of 71
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now plugged.
73 tubes were sleeved, a total of 100 now sleeved, d.
Observation of Work Activities The NRC inspector observed work and had discussions with personnel during the ISI activities. These observations included the perfornance of the following:
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(1) Eddy current examination of several steam gene.ator tubes on steam generators No. 11 and No. 12.
(2) Master / slave ultrasonic system being used.
(3) Independent eddy :urrent examination data review by CONAM and Westinghouse.
(4) Ultrasonic examination of Yeld "E" in steam gener& tor No. 11.
Three teams were performing ultrasonic ext.minations at once, approximately 400" of weld.
(5) Magnetic particle examination of primary inlet and outlet manway bolts for steam generator No. 12.
(6) Liquid penetrant examination of weld #183 in the refueling water storage tank discharge line.
No violations or deviations were identified.
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Exit Meeting l
l The inspector met with site representatives (denoted in Persons Contacted j
paragraph) at the conclusion of the inspection. The inspector summarized the scope and findings of the intpection noted in this report. The inspector also discussed the likely information content of the inspection report with regard to documents or processes reviewed by the inspector during the inspection. The licensee did not identify and such
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l documents / processes es proprietary.
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