ML17341B618

Advises That Arrangements Made for Consultant to Perform New Analysis Per NUREG-0744,Rev 1,Generic Ltr 82-26, Pressure Vessel Matl Fracture Toughness, to Confirm Previous Conclusions Re Shelf Energy.Results Expected by Aug 1983

ML17341B618
Person / Time
Site:	Turkey Point
Issue date:	02/03/1983
From:	Robert E. Uhrig FLORIDA POWER & LIGHT CO.
To:	Eisenhut D Office of Nuclear Reactor Regulation
References
REF-GTECI-A-12, REF-GTECI-EQ, RTR-NUREG-0744, RTR-NUREG-744, TASK-A-12, TASK-OR 820803, GL-82-26, L-83-55, NUDOCS 8302070305
Download: ML17341B618 (4)

Text

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ACCESSION NBR:8302070305 DOC ~ DATE: 83/02/03 NOTARIZED: NO DOCKET FACIL:50-250 Turkey Point <<Pl anti Uni.t 3i F1 or ida Power and Light C 05000250 50"251 Turkey Point Planti 'Unit 4r Florida Power and Light BYNAME -C 05000251 AUTH AUTHOR AFFILIATION UHRIGER ~ ED Florida 'Power & Light Co,

'REC IP, NAME RECIPIENT AFFILIATION EISENHUTiDBG+ Division of Licensing

SUBJECT:

Advises that ar rangements made for consul'tant to .perform new analysisper NUREG-07.4A~Rev 1~Generic Ltr 82"'26'"Pressure Vessel Natl .Fracture Toughnessr." to confirm previous conclusions re .shelf energy, Results expected by Aug 1983 TITLE: OR CODE:

Submittal:

ADIOS COPIES RECEIVED:LTR A ENCL USI A"12 Component Support Fracture 7 SIZE:. 'ISTRIBUTION Toughness'OTES:

RECIPIENT COPIES RECIPIENT 'COPIES ID CODE/NAME LTTR ENCL ID 'CODE/NAME LTTR ENCL NRR ORB1 BC 01 7 7 INTERNAl.; NRR RANDALL 1 1 NRR SELLERSgC NRR/DE DIR 1 1 NRR/DE/MTEB 08 NRR/DL DIR 1 NRR/DL/ORAB 10 NR GP 1 0 NRR/DST/GIB 07 G 04 1 1 RGN2 EXTERNAL: ACRS 12 6 6 LPDR 03 NRC PDR 02 1 1 NSIC 05 NTI'S 1 1

'-TOTAL NUMBER OF COPIES REQUIRED: LTTR 27 ENCL 26

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FLORIDA POWER 8( LIGHT COMPANY February 3, 1983 L-83-55 Office of Nuclear Reactor Regulation Attention: Nr,. Darrell G. Eisenhut, Director Division of Licensing U.S. Nuclear Regulatory Commission Washington, D. C. 20555

Dear Nr. Eisenhut:

Re: Turkey Point Units 3 & 4 Docket No. 50-250 & 50-251 NUREG-0744 Rev . 1: (Generic Letter 82-26)

Pressure Vessel Material Fracture Tou hness Generic Letter 82-26 outlines an acceptable method of fracture mecnanics analysis which is to be performed to demonstrate the existence of adequate margin when the fracture toughness requirements of Appendix G to 10 CFR 50 are not met. The Generic Letter further requires that this analysis be submitted at least 3 years prior to the date fracture toughness levels are predicted to no longer satisfy these requirements.

In previous correspondence (L-76-363, dated 10/19/76; L-77-113, dated 4/11/77; L-77-292, dated 9/14/77; L-77-326, dated 10/21/77) and meetings with your staff, we demonstrated that although the shelf energy of Turkey Point Unit 4's surveillance capsule "T" did not meet Section V. B of Appendix G to 10 CFR 50, the unit could continue to be safely operated. This conclusion was demonstrated by fatigue, accident and fracture analyses, as well as an in-depth look at the Turkey Point Unit 3 and 4 surveillance program.

In addition to these actions, we have now arranged for a consultant to perform a new analysis, in accordance with Generic Letter 82-26, which we anticipate will confirm our previous conclusions. The results of this work is tentatively scheduled to be ccmplete by the end of August 1983. We will submit the report to you following in-house review, approximately eight weeks later.

Very truly yours, Robert E. Uhrig Vice President Advanced Systems & Technology REU'/JEN/JS ol<

cc: V(r. James P. O'Reil ly, Region II ter. Harold F. Rei s, Esquire P NS-L I-83-056 8302070305 830203 PDR AMCK 05000250 P PEOPLE... SERVING PEOPLE PDR

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