ML17348B441

Interim Part 21 Rept Re Westinghouse Reactor Vessel Head Adaptor Tube Cracking.Wog Approved Project Authorization on 920205 for Reactor Vessel Closure Head Penetration Alloy 600 Primary Water Stress Corrosion Cracking

ML17348B441
Person / Time
Site:	Turkey Point
Issue date:	03/23/1992
From:	Plunkett T FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
REF-PT21-92 L-92-86, NUDOCS 9203300130
Download: ML17348B441 (6)

Text

ACCELERATED DISTjGBUTION DEMONST$MTION SYSTEM REGULAT . INFORMATION DISTRIBUTIO .SYSTEM (RIDS)

ACCESS~ON NBR:9203300130 DOC.DATE: 92/03/23 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 6 Light Co.

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

SUBJECT:

Interim Part 21 rept re Westinghouse reactor vessel head adaptor tube cracking.WOG approved Project Authorization on 920205 for Reactor Vessel Closure Head Penetration Alloy 600 Primary Water Stress Corrosion Cracking.

DISTRIBUTION CODE: IE19D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: Part 21 Rept (50 DKT)

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NOTES:NRR RAGHAVAN,L 05000250 NRR RAGHAVAN,L 05000251 A D

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL D PD2-2 LA 1 0 PD2-2 PD 1 1 AULUCKiR 1 1 INTERNAL: AEOD/DSP/ROAB 1 1 NRR/DO~EA=.O CB1 2 2 NRR/DRIS/RVIB9D 1 1 RP 0 1 1 RES/DSIR/EIB 1 1 RGN1~ 1 1 RGN2 1 1 RGN3 1 1 RGN4 1 1 RGN5 1 1 SECY VANDERMEL 1 1 EXTERNAL: INPO RECORD CTR 1 1 NRC PDR 1 1 NSIC SILVER,E 1 1 NOTES: 1 1 D

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.0. Box 029100, Miami, FL, 33102-9100 L-92-86 10 CFR 21 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Gentlemen:

Re: Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 Interim Report of Evaluation of a Deviation or Failure to Com l The attached information is provided pursuant to 10 CFR 21.21(a)(2) which requires an interim report on evaluations that will not be completed within 60 days from discovery of the deviation or failure to comply.

Should there be any questions, please contact us.

truly m

Very yours, T. F. Plunkett Vice President Turkey Point Plant Nuclear attachment cc: Stewart D. Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, Turkey Point Plant idgf r'Q f1 r~ lk g fUVwp; 9203300130 'rr20323 PDR ADOCK 05000250 PDR 8

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L-.92-86 Turkey Point Units 3 & 4 Docket Nos. 50-250, 50-251 SUBJECT Interim Report of Evaluation of a Deviation or Failure to Comply Pursuant to 10CFR21.21(a)(2)

TITLE:

Reactor Vessel Head Adaptor Tube Cracking BASIC COMPONENT SUPPLIED BY>>

Westinghouse Electric Corporation NATURE OF DEVIATION:

Westinghouse's initial evaluation of information provided by Electricite de France (EdF) determined that a crack and subsequent leak developed in a reactor vessel head adaptor tube. These head adaptor tubes are manufactured from Alloy 600 material in both Framatome and Westinghouse designed plants. Please see referenced letter for additional details.

DISCOVERY DATE:

January 24, 1992 CORRECTIVE ACTIONS TO DATE:

The Westinghouse Owners Group (WOG) approved a Project Authorization on February 5, 1992, for Reactor Vessel Closure Head Penetration Alloy 600 Primary Water Stress Corrosion Cracking. The purpose of the program is to establish the extent of applicability to Westinghouse supplied vessels. The program started in March, 1992, and is applicable to all WOG domestic utilities, expect Yankee Rowe.

EVALUATION COMPLETION SCHEDULE DATRIL August 30, 1992 f.

REFERENCE:

Letter FPL-92-510, "Reactor Vessel Head Adaptor Tube Cracking," dated January 24, 1992, J. J. Leblang, Westinghouse, to D. R. Powell, FPL.

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