ML17352A184

Forwards Addl Info on Results of 20th Yr Tendon Surveillance,In Response to NRC 930125 Rai,Per 930111 Meeting W/Nrc Re 20th Yr Tendon Surveillance Program for Turkey Point Units 3 & 4

ML17352A184
Person / Time
Site:	Turkey Point
Issue date:	08/10/1993
From:	Plunkett T FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-93-174, TAC-M84101, NUDOCS 9308160270
Download: ML17352A184 (4)

Text

.ACCELERATED DISTRIBUTION DEMONSTRATION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR: 9308160270 DOC. DATE: 93/08/10 NOTARIZED: NO DOCKET FACIL:50-250 Turkey Point Plant, Unit 3, Florida Power and Light C 05000250 50-251 Turkey Point Plant, Unit 4, Florida Power and Light C 05000251 AUTH. NAME AUTHOR AFFILIATION PLUNKETT,T.F. Florida Power S Light Co.

RECIP.NAME RECIPIENT AFFILIATION R Document Control Branch (Document Control Desk)

SUBJECT:

Forwards addi info on results of 20th yr tendon surveillance, in response to NRC 930125 RAI,per 930111 D meeting w/NRC re 20th yr tendon surveillance program for Turkey Point Units 3 6 4.

DISTRIBUTION CODE: AOOID COPIES RECEIVED:LTR i ENCL TITLE: OR Submittal: General Distribution NOTES j SIZE:

RECIPIENT COPIES RECIPIENT COPIES D ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-2 LA 1 1 PD2-2 PD 1 1 D RAGHAVAN,L 2 2 INTERNAL: NRR/DE/EELB 1 NRR/DRCH/HICB 1 1 NRR/DRPW/OTS B 1 NRR/DSSA/S PLB 1 1 NRR/DSSA/SRXB 1 NUDOCS-ABSTRACT 1 1 DC 1 OGC/HDS 3 1 0 REG FILE 01 b EXTERNAL'RC PDR NSIC 1 1 R

D D

D NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 15 ENCL 13

1

~" 1 fg

AU8 10 1SS3 L-93-174 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Gentlemen:

Re: Turkey Point Units 3 and 4 Docket No. 50-250 and 50-251 Containment Tendon Surveillance Pro ram TAC No. M84101 On January 11, 1993, Florida Power and Light (FPL) Company met with the NRC to discuss the twentieth year tendon surveillance program for Turkey Point Units 3 and 4. FPL discussed the results of the twentieth year surveillance, the root cause evaluation of the low lift-off values obtained during the surveillance, and FPL's long term for resolution of this issue. The NRC was in general agreement 'lan with FPL's approach. Following this meeting, the NRC issued a meeting summary dated January 25, 1993, in which the staff requested additional information to support the review of the tendon surveillances. In response to this request, the attachment is provided.

A ze-analysis of the Turkey Point Units 3 and 4 containment structures is in progress. The re-analysis is being performed in accordance with the existing design basis as established by the Turkey Point Updated Final Safety Analysis Report (UFSAR), using a design internal pressure of 55 psig. FPL expects that this re-analysis will demonstrate the post-tensioning system's capability to meet the design basis requirements for the service life of the plant (i.e., 40 years from Operating License). This re-analysis will include a rate of steel relaxation representative of the actual conditions occurring at the plant. Additionally, this re-analysis will establish predicted upper and. lower bound limits to which future tendon surveillance lift-off forces will be compared for acceptance. This re-analysis is scheduled for completion prior to the Twenty-Fifth Year Tendon Surveillance.

Should there be any questions, please contact us.

Very truly yours, T. F. Plunkett Vice President Turkey Point Nuclear TFP/RJT/rt Attachment CC: S. B. Ebneter, Regional Administrator, Region II, USNRC, R. C. Butcher, Senior Resident Inspector, USNRC, Turkey Point 9S0S>6027O 9i0S10 PDR ADOCK 05000250 P PDR an FPL Group company

i~'I

'", II l 0

J