AECM-85-0328, Requests NRC Concurrence in Withdrawal of 830817 Commitment Requiring IGSCC Examiners to Perform Proficiency Exams Due to Examiners Participation in EPRI Requalification Program.Fee Paid

Requests NRC Concurrence in Withdrawal of 830817 Commitment Requiring IGSCC Examiners to Perform Proficiency Exams Due to Examiners Participation in EPRI Requalification Program.Fee Paid

ML20133G596
Person / Time
Site:	Grand Gulf
Issue date:	10/11/1985
From:	Dale L MISSISSIPPI POWER & LIGHT CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
AECM-85-0328, AECM-85-328, TAC-59903, TAC-59914, NUDOCS 8510160042
Download: ML20133G596 (3)

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. MISSISSIPPI POWER & LIGHT COMPANY

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)) Helping Build Mississippi E 616 MiddE P.O. BOX 164 0, J AC K S O N, MIS SIS SIP PI 39215-1640 ECLE AR LICENSING & SMETY DEP ARTWENT October 11, 1985 U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Washington, D. C. 20555 Attention: Mr. Harold R. Denton, Director

SUBJECT:

Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-29 File: 0260/M-489.1 IGSCC Examiner Qualifications AECM-85/0328 By letter dated August 17, 1983 (AECM-83/0481) Mississippi Power & Light Company (MP&L) provided information requested by your staff regarding susceptibility of Grand Gulf Nuclear Station (GGNS) reactor coolant boundary piping to intergranular stress corrosion cracking (IGSCC). Part of the information submitted addressed MP&L's plans to enhance the GGNS Inservice Inspection (ISI) Program to increase our ability for IGSCC detection. GGNS committed to the development of a program for the demonstration of examination procedures and personnel on IGSCC samples obtained from Nine Mile Point Nuclear Plant.

Subsequent to the above MP&L commitment, the Electric Power Research Institute (EPRI) - NDE center has developed and implemented a more extensive training and qualification program for ICSCC examiners. The revised EPRI program has increased the testing difficulty and is designed to improve the qualifications of personnel performing examinations for IGSCC. In addition, the personnel are tested with the actual procedures used in field applications.

Recently, the NRC staff has indicated to MP&L that all IGSCC examiners should be re-qualified by the new EPRI program prior to performing examinations during the GGNS Unit 1 Fall 1985 outage. MP&L has elected to comply with the NRC staff recommendation. The GGNS ISI contractor (General Electric A&ES0) personnel are participating in the EPRI re-qualification effort. In view of the re-qualification program, the performance of additional examiner demonstrations at GGNS provides essentially no added benefits or assurance.

MP&L considers it prudent to rely on the latest EPRI training and qualification testing and hereby provides the commitment that all personnel performing IGSCC examinations and data evaluation at GCNS will have successfully completed the revised EPRI program. Therefore, MP&L requests NRC concurrence in the withdrawal of the commitment in AECM-83/0481 to require IGSCC examiners to g perform proficiency examinations at GCNS.

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F. Dale Director MLC/JGC:vog cc: Mr. J. B. Richard 5 Mr. O. D..Kingsley, Jr.

Mr. R. B. McGehee Mr. N. S. Reynolds Mr. H. T.. Thomas Mr. R. C. Butcher Mr. James M. Taylor, Director Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 i Dr. J. Nelson Grace, Regional Administrator U. S. Nuclear Regulatory Commission i Region II 101 Marietta St., N. W., Suite 2900 4

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