ML20083H377

Confirms 840105 Telcons W/Nrc Re Recent Developments Concerning Plans to Replace Recirculation Sys Piping. Scheduled Shutdown Delayed for Wk or Later Date in Jan,Due to Delay in Fabrication of Piping

ML20083H377
Person / Time
Site:	Hatch
Issue date:	01/06/1984
From:	Gucwa L GEORGIA POWER CO.
To:	Stolz J Office of Nuclear Reactor Regulation
References
NED-84-014, NED-84-14, TAC-52483, NUDOCS 8401130179
Download: ML20083H377 (2)

Text

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Georgia Power Company s 333 Piedmont Avenue Atlanta, Georg:a 30308 Tekmhone 404 526-6526 Mail,og A@ess Post off.ce Box 4545 Atlanta, Georg:a 30302 L Georgia Power L T. Gucwa tne sov.ren eerc s, stem Manager Nuclear Engineenng and Chief Nuclear Engnew NED-84-014 January 6, 1984 Director of Nuclear Reactor Regulation Attention: Mr. John F. Stolz, Gief Operating Reactors Branch No. 4 Division of Licensing U. S. Nuclear Regulatory Cm mission Washington, D. C. 20555 NBC DOCKET 50-366 OPERATING LICENSE NPF-5 EDRIN I. HA'ICH NUCLEAR PIANT UNIT 2 RECIRCUIAfION PIPING REPLACEMENT Gentlenen:

On January 5,1984, Georgia Power Cmpany notified the NRC staff (both NRR and Region II I&E) via separate telephone conversations of recent developnents regarding plans to replace the recirculation syste piping at Plant Hatch Unit 2. 'Ihis serves to confirm those discussions.

In past conversations and meetings, we have discussed plans to shutdown Plant Hatch Unit 2 on January 6,1984 to replace the recirculation systs piping. We have now decided to delay that scheduled shutdown for a week and could possibly delay shutdown to an even later date in January. 'Ihe reasons for the delay are twofold: (1) There is a delay in the fabrication of the piping, and (2) we are pursuing a more rigorous progra of pipe testing and exmination to assure its quality. In undertaking this more rigorous testing, we are ascertaining that the piping is not only code acceptable, but is, in fact, the best quality piping available.

In conducting intensive exminations of the pipe as it is fabricated, our agents have detected sme small linear indications in what appears to be the heat-affected zone of the pipe sem weld. Although these indications do not appear to be significant enough to present a code proble, we feel the quality of this pipe requires their reoval and an understanding of their origin. These indications appeared on the outside surface of certain pipe and have been characterized as being each less than 1/16-inch long. We feel that normal fabrication processes (e.g. , buffing, grinding) should be utilized to r eove the indications.

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v Georgia Power Director of Nuclear Reactor Regulation

. Attention: Mr. John F. Stolz, 011ef Operating Reactors Branch No. 4 January 6, 1984 Page 'Jho We are notifying you to (1) make you aware of our schedule delay end (2) to make you aware of these findings.

In a' matter unrelated to the recirculation systen piping, but affected by. an outage schedule delay, we discussed planned modifications to the Scra Disdiarge - systen. We . stated that should ciremstances warrant further

. postponenent'of our scheduled outage, we would not operate beyond January 31, 1984, without making'modiff mtions to the Scran Discharge systen.

If, now or at any time during the period of this project, you would like to discuss this project further, please let us know.

Very truly yours,

/[ & A L. T. Gucwa bnb xc: C. T. Beckham, Jr.

H. C. Nix, Jr.

J. P. O'Reilly (NRC- Region II)

Senior Resident Inspector.

l 700775

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