ML19261B634

Informs of 780803 Deficiency in High Pressure Core Spray Sys Bypass Valve,Reportable Under 10cFR50.55(e).Caused by Use of 150 Psi Disk,Rather than 600 Psi Disk.Disk Was Replaced. Deficiency Reported to R Heishman of Region 3 on 780804

ML19261B634
Person / Time
Site:	Bailly
Issue date:	02/22/1979
From:	Shorb E NORTHERN INDIANA PUBLIC SERVICE CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 7902280306
Download: ML19261B634 (2)

Text

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2O s esco Nortsheen Indiana Public Service Company

?y General Offices l 5265 Hohman Avenue l Hammond. Indiana 46325 lTel.: 853-5200 (219) y E. M. SHon s February 22, 1979 SENIOR vsCE PRESIOENT-OPERATION S Mr. James Keppler, Regional Director U. S. Nuclear Regulatory Commis sion Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Re: Docket No. 50-367

Dear Mr. Kepple r:

On August 3, 1978, Northern Indiana Public Service Company (NIPSCO) determined that a deficiency found in the High Pressure Core Spray System By-pass Valve, MPL #E22-F012, was reportable under 10 CFR 50. 55(e). The deficiency was reported to Region III by tele-phoning Mr. Robert Heishman, Chief - Reactor Construction and Support Branch on August 4, 1978.

Description of Report The General Electric Company (GE) procurement specification for the above-referenced valve (Specification No. 21A1736) calls for a 3 inch, 600 psi, ASME Class II gate valve with a 600 psi disk.

During hydro-testing at the William H. Zimmer Station on about July 21, 1978, it was discovered that the Zimmer valve contained a 150 psi disk in place of the 600 psi disk called for in the GE specification. Since both the Zimmer Station valve and the Bailly N-1 valve were procured using the same GE purchase specification and purchase order and were fabricated and shipped about the same period, it was assumed that both valves contained the 150 psi disk rather than the 600 psi disk.

The valve for Bailly N-1 w:'a in storage at the time of discovery of the deficiency and was never installed or used in any safety related system.

It was returned to Anchor Darling Valve Company, the manufacturer, on August 4, 1978, where the 150 psi disk was replaced by a qualified 90 t

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Northern Indiana PubIlo Servloe Cornpeng

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Mr. James Keppler Hammond, Indiana U. S. Nuclear Regulatory Commission February 22, 1979 Page Two 600 psi disk. The valve was then returned to NIPSCO and placed in storage.

The present construction schedule for Bailly N-1 calls for installation of this valve in 1981 and hydro-testing in 1983.

The valve now complies with all applicable specification requirements and this item may now be considered closed under 10 CFR 50. 55(e).

d Very truly yours, (Stins5) E. M. Sim EMS:cg s

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cc: Director of Inspection and Enforcement U. S. Nuclear Regulatory Commission Wa shington, D. C. 20555

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