ML19270G468

RO 50-313/79-03 on 790425:leak in 1-inch Drain Socket Weld Discovered in B Decay Heat Loop Discharge in Reactor Bldg During Cold Shutdown.Cause Unknown.Drain Line to Be Replaced.Rept to Follow

ML19270G468
Person / Time
Site:	Arkansas Nuclear
Issue date:	04/26/1979
From:	Ohanlon J ARKANSAS POWER & LIGHT CO.
To:	Madsen G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
RO-790426, NUDOCS 7906080298
Download: ML19270G468 (1)

Text

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ARKANSAS POWER & LIGHT COMPANY April 26, 1979 AN0-1240

>!r. G.L. hhdsen, Acting Director Office of Inspection 6 Enforcement Region IV U.S. Nuclear Regulatory Comission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011

Subject:

Arkansas Nuclear One - Unit One Reportable Event 50-313/79-03 ,

Dear Sir:

This letter is to confim the telephone conversation between 31r. W. Johnson (NRC, Region IV) and Str. J.P. O'Hanlon (Arkansas Nuclear One, General 3hnager) at 1000 on April 25, 1979. This is reported to you in accordance with T.S. 6.12.3.1.c.

At 0100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> on 4/25/79 with the reactor in a cold shutdown condition, a leak was discovered in "B" Decay Heat Loop discharge located in the Reactor Building. The leak was in a 1 inch drain line socket weld to an 8 inch cross connect line to the "A" Decay Heat Loop. The 1 inch drain line will be replaced. The cause of the failure at this time is unknown. Due to the plant condition and sirall jiugnitude of the leak there was no hazard to the health and safety of the public.

Further details will be included in the follow up report.

Sincer v, J.P. O'Hanlon General Abnager

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cc: J.31. Griffin 2337 249 D.C. Trimble 79060802W3' ggdh 5 / /)

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