ML20151M388

Provides Followup of 880415 Request for Relief from Tech Spec Requirements,Allowing for one-time Extension of 30-day Limiting Condition for Operation for Primary Containment Recombiner Sys

ML20151M388
Person / Time
Site:	Hatch
Issue date:	04/18/1988
From:	Gucwa L GEORGIA POWER CO.
To:	Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
SL-4563C, TAC-68059, NUDOCS 8804250041
Download: ML20151M388 (2)

Text

,

4' Georgia Power Company

, 333 Pedmont Avenue

>s,-

Atfanta, Georg:a 30308

8 / 7, Teicohor e 404 5264526 Ma hog Mdress-Post OMice Box 4545 '

Attanta, Georg.a 30302 Georgia Power the southern electic system L.T.Gucwa Manager Nuclear Safety and Licensrng SL-4563c 2014C X7GJ10-H000 April 18, 1988 U. S. Nuclear Regulatory Commission Regional Administrator - Region II Suite 2900 101 Marietta Street, N. H.

Atlanta, Georgia 30323 Attn: Dr. J. Nelson Grace PLANT HATCH - UNIT 2 NRC DOCKET 50-366 OPERATING LICENSE NPR-5 TECHNICAL SPECIFICATIONS Gentlemen:

This letter constitutes written follow up of a relief request to Technical Specification (TS) requirements. Specifically, relief from TS requirements (on a one time basis) was requested, and subsequently granted, via telecon between Georgia Power Company (GPC) personnel, members of your staf f, and members of the NRR staff on April 15, 1988.

The waiver applied to Plant Hatch Unit 2 TS 3.6.6.2.a which provides a Limiting Condition for Operation (LCO) for the primary containment recombiner systems. Specifically, the waiver allowed for a one time extension of- the 30 day LC0 for operation with one recombiner system inoperable. The extension granted was for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> (3 days) after the t expiration of the 30 day LC0. The 30 day LCO expired on April 15, 1988 at about 2:00 CDT. The repair to the recombiner system had involved cutting and welding of the suction piping. The waiver was granted with the understanding that Region II personnel would be immediately notified if problems were encountered during the weld examination and pressure testing or during the system functional test. No problems were encountered, however, and the system is functioning properly as of April 18, 1988.

The three day extension of the LC0 had an insignificant impact on plant safety. Plant Hatch Unit 2 was originally licensed with a non-inerted containment which used primary hydrogen recombiners as the primary means of LOCA combustible gas control. In 1982 the Unit 2 containment was inerted as required by 10 CFR 50.44 (C)(3(i). The 00 8804250043 99943g 3 DR ADOCK 05000366 DCD

f 3, * . .

Georgia Power A U. S. Nuclear Regulatory Connission April 18, 1988 Page Two reference report provides the technical basis for the determination that the hydrogen recombiner systems are not necessary for safety in BHR plants with inerted containments.

Based on reference 1, it is conclucad that the 3 day LC0 extension for Unit 2 is justified.

If you have any questions in this regard, please contact this office.

at any time.

Sincerely,

#@4 l

! L. T. Gucwa GKM/lc

Reference:

1. NED0-22155, "Generation and Mitigation of Combustible Gas Mixtures in Inerted BHR Mark I Containments", June 1982.

c: Georcia Power Comcany Mr. J. T. Beckham, Jr., Vice President - Plant Hatch GO-NORMS U. S. Nuclear Rea01atory Commission. Washinaton. D. C.

Mr. L. P. Crocker, Licensing Project Manager - Hatch j Document Control Desk t

l U. S. Nuclear Reaulatory Commission. Reaion II I

Hr. P. Holmes-Ray, Senior Resident Inspector - Hatch l 2014C ,

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