ML17349A884

Documents FPL Decision to Invoke Code Case N-416, Alternative Rules for Hydrostatic Testing of Repair or Replacement of Class 2 Piping. Forwards Figures 1-6

ML17349A884
Person / Time
Site:	Turkey Point
Issue date:	05/17/1993
From:	Plunkett T FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-93-139, NUDOCS 9306030113
Download: ML17349A884 (12)

Text

ACCKI.ERATO DOCUMENT DISTRIBVTION SYSTEM REGULAT~ INFORMATION DISTRIBUTIONSYSTEM (RIDE)

ACE.'ESSION NBR:9306030113 DOC.DATE: 93/05/17 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 & Light Co.

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

SUBJECT:

Documents FPL decision to invoke Code Case N-416, "Alternative Rules for Hydrostatic Testing of Repair or Replacement of Class 2 Piping." Forwards figures 1-6.

DISTRIBUTION CODE: A047D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: OR Submittal: Inservice/Testing/Relief from ASME Code NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-2 LA 1 0 PD2-2 PD 1 1 RAGHAVAN,L 2 2 INTERNAL: NRR/DE/EMEB 1 1 NUDOCS-ABSTRACT 1 1 OC/J EHB 1 0 OGC/HDS3 1 0 01 1 1 RES/DSIR/EIB 1 1 EXTERNAL: EG&G BROWNFB 1 1 EG&G RANSOME F C 1 1 NRC PDR 1 1 NSIC 1 1 NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 14 ENCL 11

P.O. Box 029100, Miami, FL, 33102-9100 ltd 17 1%3 L-93-139 10 CFR 50.55a 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 Inservice Ins ection Pro ram This letter documents Florida Power and Light Co.'s (FPL) decision to invoke Code Case N-416, "Alternative Rules for Hydrostatic Testing of Repair or Replacement of Class 2 Piping," as discussed in Regulatory Guide (RG) 1.147 foz the Class 2 component steam generators up to the first isolation valve. Attached Figures 1 through 6 define the steam generators'oundary for applicability of Code Case N-416 for Turkey Point Units 3 and 4. There will be no deviations from the requirements of. Code Case N-416.

By FPL letter L-93-60, dated March 10, 1993, FPL informed the NRC that the Turkey Point Units 3 and 4 Insezvice Inspection Program invokes Code Case N-498, "Alternative Rules for 10 Year Hydrostatic Pressure Testing for Class 1 and 2 Systems,Section XI, Division 1," as discussed in RG 1.147. Code Case N-498 requires a hydrostatic pressure test after replacement and repairs for Class 1 and 2 systems.

Ultrasonic inspections were conducted on the Turkey Point Unit 4 steam generators'eedwater nozzle to reducer weld joints. The inspections identified cracks originating in the weld root and propagating into the reducer base material for all three steam generators. FPL is currently replacing the Turkey Point Unit 4 feedwater reducers on all three steam generators.

Code Case N-416 allows deferral of the required hydrostatic pressure test for repairs or replacements to the next regularly scheduled ten-year hydrostatic test The ten-year hydrostatic pressure test for the Turkey Point Unit 3 steam generators was completed on September 24, 1992. The ten-year hydrostatic pressure test for the Turkey Point Unit 4'steam generators was completed on April 18, 1993. The next scheduled ten-year hydrostatic pressure test will be performed at the end of the third inspection interval for each unit. The end of the third inspection interval for Turkey Point Unit 3 is February 21, 2004. The end of the third inspection interval for Turkey Point Unit 4 is April 15, 2004.

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L-93-139 Page 2 of 2 In accordance with Code Case N-416, both a post-repair visual leak test at operating pressure will be performed, and a full volumetric examination, consisting of one hundred percent radiographic testing and ultrasonic testing, will be performed for the reducer replacement.

Should there be any questions concerning the above information, please contact us.

Very truly yours, T. F. Plunkett Vice President Turkey Point Nuclear TFP/OIH/oh attachment cc: Stewart D. Ebneter, Regional Administrator, Region II, USNRC R. C. Butcher, Senior Resident Inspector, USNRC, Turkey Point Plant

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