ML17347A450

Forwards Rept on Instrumentation Port Column Assembly Leakage,Turkey Point Unit 4. Rept Prepared in Response to 870313 Discovery of Boric Acid Crystals on Reactor Vessel Head Due to Leak in Lower Seal (Conoseal) of Assembly

ML17347A450
Person / Time
Site:	Turkey Point
Issue date:	04/27/1987
From:	Woody C FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML17347A451	List: ML17347A450 ML17347A452
References
L-87-186, NUDOCS 8705060055
Download: ML17347A450 (4)

Text

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ACCESSION NBR: 8705060055 DOC. DATE: 87/04/27 NOTARIZED: NQ DOCKET ¹ FAC IL: 50-251 Tuv keg Point Plant. Unit 4> Flov ida Poeev and Light C 05000251 AUTH. NAME AUTHOR AFFILIATION NOODYi C. O. Flov ida Pomev Zc Light Co.

REC IP. NAME RECIPIENT AFFILIATION Document Covvtv o I Bv anc h (Doc ument Contv o l Desk)

SUB JECT: Fov'trav'ds "Rept on Instv umentation Pov t ColumnL Assemblg LeakageE Tuv keg Point Unit 4. " Rept pv'epav ed in v'esp onse to 870313 discovev g of bov ic acid cv gstals on v eactov vessel head due to leak in ioeev seal (conoseal) -of assemblg.

DISTRIBUTION CODE: *047D TITLE: QR COPIES RFCEIVED: LTR Submittal: Insev vice Inspection/Testing

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APRIL 87 1987 L-87-186 U. S ~ Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Gentlemen:

Re: Turkey Point Unit 4 Docket No. 50-251 Report on Instrumentation Port Column Assembl Leaka e On March 13, 1987, during an inspection of the Turkey Point Unit 4 Reactor Pressure Vessel head area, Florida Power 6 Light found that a significant amount of boric acid crystals had been deposited on the reactor vessel head due to a leak in the lower seal (conoseal) of an instrumentation port column assembly. The purpose of the enclosed report is to identify the potential leakage mechanisms and components which have been affected by the leakage, to describe the actions FPL has taken regarding these components, and to describe the actions FPL has taken, or is planning to take, to prevent recurrence of this type of event. Supporting documentation is available at the site for your inspection.

Upon completion of the actions associated with preparation for startup which are discussed in the report, it is FPL's conclusion that the issues associated with this event will have been resolved, and would not prevent return to normal operation.

The commitments in this report which are not associated with the startup of the unit will be controlled by the corporate licensing commitment tracking syst: em to ensure prompt and complete action.

If you should have any questions about the information in the attached report please contact us. A copy of this report is being sent directly to Mr. Alan R. Herdt, the NRC Augmented Inspection Team leader.

Very truly yours, C. 0. Wo Group President Nuclear Energy COW/njk Attachment cc: Dr. J. Nelson Grace, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, Turkey Point 8705060055 870427 PDR ADOCK 05000251 PDR an FPL Group company

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