Letter Sequence Supplement |
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Results
Other: ML20195E282, ML20203N688, ML20205H816, ML20206M282, ML20206M303, ML20206N981, ML20206P886, ML20206U000, ML20207B138, ML20207B153, ML20210S542, ML20211K779, ML20211K784, ML20212B866, ML20212B874, ML20212B884
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MONTHYEARML20211K7841985-04-25025 April 1985
Forwards Affidavit for Withholding Proprietary McGuire Units 1 & 2 Tubesheet Region Plugging Criterion (Ref 10CFR2.790).Nonproprietary Version Encl.Proprietary Version Withheld
Project stage: Other
ML20127P5321985-05-0909 May 1985
Summary of 850502 Meeting W/Util & Westinghouse in Bethesda,Md Re Steam Generator Tube Plugging for Indications within Tubesheet Region.List of Attendees & Viewgraphs Encl
Project stage: Meeting
ML20195E2821986-05-28028 May 1986
Proposed Tech Spec 3/4.6.2.3,deleting Drywell Air Lock Seal Pressure Instrumentation 31-day Channel Functional Test from Surveillance Requirement 4.6.2.3.d.1
Project stage: Other
ML20211K7711986-06-24024 June 1986
Application for Amends to Licenses NPF-9 & NPF-17,modifying Steam Generator Tube Plugging Criteria to Allow Evaluations of Degraded Tubes to Be Performed within Tubesheet.Fee Paid
Project stage: Request
ML20211K7791986-06-24024 June 1986
Proposed Tech Specs,Changing Steam Generator Tube Plugging Criteria to Allow Evaluations of Degraded Tubes to Be Performed within Tubesheet
Project stage: Other
ML20206U0001986-07-0101 July 1986
Forwards Revised Marked Up Proposed Tech Specs,Re Criterion for Plugging Steam Generator Tubes,Reflecting Change in Wording of Proposal.Changes Not Functionally Different from Changes in 860624 Submittal
Project stage: Other
ML20203A5051986-07-10010 July 1986
Informs of Present Schedule for Ongoing Refueling Outage,Per Proposed Changes to Tech Specs Submitted in 860624 & 0701 Ltrs.Approval of Change Required Prior to Entry Into Mode 4, Presently Scheduled for 860822
Project stage: Request
ML20207B1381986-07-11011 July 1986
Disagrees That Proposed Amends to Licenses NPF-9 & NPF-17, Eliminating Need to Plug Steam Generator Tubes,Would Not Involve Significant Hazards Consideration.Notice of Opportunity for Prior Hearing Re Amends Encl
Project stage: Other
ML20207B1531986-07-11011 July 1986
Notice of Consideration of Issuance of Amends to Licenses NPF-9 & NPF-17 & Opportunity for Prior Hearing Re Elimination of Requirements for Plugging Steam Generator If Defect 2 Inches Below Top of Tube Sheet
Project stage: Other
ML20211P2621986-07-16016 July 1986
Notification of 860725 Meeting W/Util & Westinghouse in Bethesda,Md to Discuss Proposed Tech Spec Change Re Plugging of Steam Generator Tubes W/Defects in Tubesheet Region
Project stage: Meeting
ML20212B8841986-07-31031 July 1986
Nonproprietary Tubesheet Region Plugging Criterion for Duke Power Co McGuire Nuclear Station Units 1 & 2 Steam Generators
Project stage: Other
ML20212B8741986-08-0101 August 1986
Requests That WCAP-11224 Tubesheet Region Plugging Criterion for Duke Power Co McGuire Nuclear Station Units 1 & 2 Steam Generators Be Withheld from Public Disclosure (Ref 10CFR2.790).Affidavit Encl
Project stage: Other
ML20212B8661986-08-0505 August 1986
Proposed Tech Specs,Incorporating Revised Steam Generator Plugging Criteria
Project stage: Other
ML20212D0061986-08-0505 August 1986
Suppls 860320 Application for Amends to Licenses NPF-9 & NPF-17,permitting Use of multi-element TN-8 & TN-8L Spent Fuel Casks for Receipt of Irradiated Fuel.Info Re Environ Impacts Per 10CFR51.52 Encl
Project stage: Request
ML20205H8161986-08-11011 August 1986
Environ Assessment & Finding of No Significant Impact Re Application for Amends to Licenses NPF-9 & NPF-17 to Revise Tech Spec 3/4.4.5, Steam Generators
Project stage: Other
ML20206M2951986-08-13013 August 1986
Supplemental Application for Amends to Licenses NPF-9 & NPF-17,revising Tech Specs Re RCS Surveillance Requirements for Steam Generator Tube Plugging.Tubes Will Be Inspected During Each Inservice Insp
Project stage: Supplement
ML20206M3031986-08-13013 August 1986
Proposed Tech Specs Re RCS Surveillance Requirements for Steam Generator Tube Plugging
Project stage: Other
ML20206M2821986-08-18018 August 1986
Forwards Revised marked-up Pages to Proposed Tech Specs Re Criterion for Plugging Steam Generator Tubes Reflecting Change in Wording of Proposal.Changes Not Functionally Different from Changes in 860813 Submittal
Project stage: Other
ML20206N9981986-08-19019 August 1986
Notice of Issuance of Amends 59 & 40 to Licenses NPF-9 & NPF-17,respectively
Project stage: Approval
ML20206N9811986-08-19019 August 1986
Amends 59 & 40 to Licenses NPF-9 & NPF-17,respectively, Modifying Steam Generator Tube Plugging Requirements for Tube Defects Located in Tubesheet Region
Project stage: Other
ML20206N9861986-08-19019 August 1986
Safety Evaluation Supporting Amends 59 & 40 to Licenses NPF-9 & NPF-17,respectively,modifying Steam Generator Tube Plugging Requirements for Tube Defects Located in Tubesheet Region
Project stage: Approval
ML20206P8861986-08-25025 August 1986
Approves Withholding WCAP-10949, Tubesheet Region Plugging Criterion for Full Depth Hardroll Expanded Tubes, Per Util 860723 Application & Recipient 860722 Affidavit (Ref 10CFR2.790)
Project stage: Other
ML20210S5421986-09-22022 September 1986
Submits Addl Info Re Radiochemistry Program for Primary to Secondary Leakage Detection & Quantification,Per 860812 Telcon Request
Project stage: Other
ML20203N6881986-10-15015 October 1986
Agrees to Withhold Proprietary Version of McGuire Units 1 & 2 Tubesheet Region Plugging Criterion, (Ref 10CFR2.790) Per 860801 Request
Project stage: Other
1986-07-16
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Duns POWER GOMPANY P.O. box 33180 CHAMLOTTE, N.C. 28242 HALH. TUCKER TELEPHONE g
,.y (704) 373-683:
August 13, 1986 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Cosmission Washington, D.C.
20555 ATTENTION:
Mr.
B.'J. Youngblood, Director PWR Directorate No. 4
Subject:
McGuire Nuclear Station, Units 1 and 2 Docket No. 50-369, 50-370 Steam Generator Tube Plugging Criteria j
Dear Mr. Denton:
By letter dated June 24, 1986 and supplemented July 1, 1986, July 23, 1986 and August 5, 1986, Duke Power proposed changes to the steam generator tube plugging criteria in the McGuire Nuclear Station Technical Specifications initially to l-incorporate the P* criteria for steam generator (S/G) tube plugging, then to base the proposal on the F* criterion after discussions between our respective staffs.
Subsequent to the last submittal, discussions were held related to the period of time during which the F* criterion would be applicable. Accordingly, Duke is proposing the revision contained in Attachment 1 of this letter to supercede the l
wording that had been proposed by my letter dated August 5, 1986. The bases of this proposal is contained in the following discussion.
4 It is Duke's interpretation of Technical Specification 4.4.5.2 that F* tubes (i.e.
those tubes with indications in the tubesheet region below the F* distance) fall l
within the category of tubes "where experience has indicated potential problems" (i.e. Technical Specification 4.4.5.2.b.2).
This inspection of F* tubes would be in addition to the minimum sample size required by Specification 4.4.5.2.
These "F* tubes" will be inspected during every inservice inspection. Duke will perform cn inservice inspection of the McGuire steam generators during each refueling cutage.
l In discussions with the Staff, it was determined that at least two operating cycles worth of tube inspection data would be desirable prior to providing cxtension of the F* criterion. For McGuire Unit 1, the first set of data would be cvailable during refueling outage (RFO) number 4, and the second during RF0 number 5.
Similarly, two sets of data would be available for McGuire Unit 2 following RPO number 5.
Following collection of the data, sufficient time is needed by Duke to review and analyze the results and, if justified prepare a license amendment submittal proposing a revision to the expiration date. Following receipt of the o\\
8608210092 860813 PDR ADOCK 05000369 P
PDR g g L-
Mr. Harold R. Denton, Director August 13, 1986 Page 2 submittal, NRC needs sufficient time to review and, if justified, approve the proposed change.
Additionally, in order to retain certainty of the acceptance criteria throughout the operating cycle of each unit, the note should not expire during an operating cycle.
Thus, the wording of the proposed change indicates that application of the F*
criterion will expire at the end of fuel cycle 5 for each McGuire unit. The end 1
of fuel cycle 5 will allow for one cycle of inspection results to be obtained and one fuel cycle to review and analyze the data and to process a license amendment.
The inspection results of the fifth refueling outage may be reviewed to allow i
further verification of the validity of the F* criterion. At that time, the F*
criterion will expire and may only be extended via NRC approval of a proposed license amendment.
i This proposal also contains clarifications that all F* tubes will be inspected (a definition of F* tube is included) and a reporting requirement for F* tubes.
This submittal supplements an earlier proposal, thus no license fees are enclosed.
Duke Power believes that sufficient information has been submitted and discussions 4
between our respective staffs have been sufficient to assure prompt, positive technical closure of this issue to support the scheduled August 19 entry into Mode 4 (Hot Shutdown), however, please feel free to contact us if you require any additional information.
l l
Very truly yours, a B&/ w Hal B. Tucker -
JBD/57/j gm Attachment xc: w/ attachment Dr. J. Nelson Grace Mr. Dayne Brown, Chief Regional Administrator Radiation Protection Branch U.S. Nuclear Regulatory Commission Division of Facility Services Region II Dept. of Human Resources 101 Marietta Street, NW, Suite 2900 P.O. Box 12200 Atlanta, Georgia 30323 Raleigh, N.C.
27605 Mr. W.T. Orders Mr. Darl Hood, Project Manager NRC Resident Inspector Division of Licensing McGuire Nuclear Station Office of NRC l
Washington, D.C.
20555
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