IR 05000269/1989037

Ack Receipt of Informing NRC of Steps Taken to Correct Violations in Insp Repts 50-269/89-37,50-270/89-37 & 50-287/89-37.Metallurgical Rept Should Be Available During Closeout Insp to Clarify Surface Discontinuities

ML15224A672
Person / Time
Site:	Oconee
Issue date:	05/04/1990
From:	Merschoff E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:	Tucker H DUKE POWER CO.
References
NUDOCS 9005170193
Download: ML15224A672 (4)

Text

May 4, 1990 Duke Power Company ATTN: Mr. H. B. Tucker, Vice President Nuclear Production Department 422 South Church Street Charlotte, NC 28242 Gentlemen:

SUBJECT:

REPORT NOS. 50-269/89-37, 50-270/89-37, 50-287/89-37 Thank you for your response of February. 16, 1990, to our Notice of Violation issued on January 17, 1990, concerning activities conducted at your Ocone facility under NRC Operating Licenses Nos. DPR-38, DPR-47 and DPR-55. We have evaluated your response and found that it meets the requirements of 10 CFR 2.20 However, we felt it necessary to respond to several statements in your letter of response:

1. Paragraph (2) states in-part that calibration standard 40367 has been inspected visually, and a cross-section has been metallographically examined. Minor processing laps were found, but no cracks were observe The laps would have minimal effect on the ultrasonic examination, and in any case would, at worst, cause an increase in examination sensitivit ASME Section XI, Appendix III, paragraph 111-3420, states:

"The finish on the surfaces of a block shall be representative of the surface finishes on the piping."

The pipe examined did not have surface discontinuities and no ultrasonic transfer methods were used to determine acoustical differences prior to the examination. In addition, the surface discontinuities noted by the inspector were in the circumferential direction, and since this block was fabricated from either seamless pipe or bored bar stock (both of which would have been drawn in the axial direction), the orientation of the discontinuities identified as laps appears confusin Therefore, please have a copy of the metallurgical report available for review during the closeout inspection for this violatio. Paragraph (4) of your response states in-part that Duke Power Company feels this violation has no safety significance since no incorrect examinations were performed, and the ultrasonic inspector took the proper actions to correct the calibration standard discrepanc Please note, however that the NRC inspector discovered the problem before potentially erroneous inspection results were recorde Furthermore, even after the error was discovered the Duke Corporate Level III examiner and other Corporate NDE Specialists, who were party to three lengthly conversations with the inspector (including the exit meeting),

contended that the block in question was satisfactory to use for calibratio (III

Duke Power Company

May 4, 1990 With regard to the corrective actions you have taken, we will examine their implementation during future inspection Your response requested a meeting with NRC Region II management and staff to present the Duke ISI program. Such a meeting could be beneficial and NRC will contact Duke to find a mutually agreeable time and place in the near futur We appreciate your cooperation in this matte

Sincerely, Ellis W. Merschoff cting Director Division of Reacto Safety cc:

H. B. Barron Station Manager Oconee Nuclear Station P. 0. Box 1439 Seneca, SC 29678 A. V. Carr, Esq Duke Power Company P. 0. Box 33189 422 South Church Street Charlotte, NC 28242 County Supervisor of Oconee County Walhalla, SC 29621 Robert B. Borsum Babcock and Wilcox Company Nuclear Power Generation Division Suite 525, 1700 Rockville Pike Rockville, MD 20852 J. Michael McGarry, III, Es Bishop, Cook, Purcell and Reynolds 1400 L Street, NW Washington, D. C. 20005 Office of Intergovernmental Relations 116 West Jones Street Raleigh, NC 27603 (cc cont'd -

See page 3)

Duke Power Company

May 4, 1990 (cc cont'd)

Heyward G. Shealy, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, SC 29201 Manager, LIS NUS Corporation 2536 Countryside Boulevard Clearwater, FL 33515 Paul Guill Duke Power Company P. 0. Box 33189 422 South Church Street Charlotte, NC 28242 Karen E. Long Assistant Attorney General N. C. Department of Justice P. 0. Box 629 Raleigh, NC 27602 State of South Carolina bcc: L. Wiens, NRR B. R. Bonser, RII M. B. Shymlock, RH Document Control Desk NRC Resident Inspector U.S. Nuclear Regulatory Commission Route 2, Box 610 Seneca, SC 29678 E. Merschoff J. Blake J. Coley

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Duke Power Company

May 4, 1990 (cc cont'd)

Manager, LIS NUS Corporation 2536 Countryside Boulevard Clearwater, FL 33515 Paul Guill Duke Power Company P. 0. Box 33189 422 South Church Street Charlotte, NC 28242 Karen E. Long Assistant Attorney General N. C. Department of Justice P. 0. Box 629 Raleigh, NC 27602 State of South Carolina bcc: L. Wiens, NRR B. R. Bonser, RII M. B. Shymlock, RII Document Control Desk NRC Resident Inspector U.S. Nuclear Regulatory Commission Route 2, Box 610 Seneca, SC 29678 E. Merschoff J. Blake J. Coley I: P

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