ML20085J928

Final Significant Deficiency Rept CP-91-04 Re Rejectable Indications in Containment Electrical Penetration Structural Welds.Initially Reported on 910624.Ultrasonic Exam of Penetrations Identified Three Rejectable Indications

ML20085J928
Person / Time
Site:	Comanche Peak
Issue date:	10/23/1991
From:	William Cahill TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
CP-91-04, TXX-91393, NUDOCS 9110300011
Download: ML20085J928 (1)

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Log # TXX-91393 File # 10110 h

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. NELECTRIC October 23 1991

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, na e vuo rra.u a U. 5. huclear Regulatory Commission-

1. Attention:. Document Control Desk

?. Washington, D. C. 205552

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SUBJECT:

COMANCHE PEAK' STEAM ELECTRIC STATION (CPSES), UNIT 2 4

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- DOCKET H0.t50-446 REJECTABLE INDICATIOWS IN CONTAINMENT ELECTRICAL' PENETRATION STRUCTURAL WELOS SDAR CP.-91-04 (FINAL REPORT) 60ntlemen:

10n;' June 24,:1991,-TU Electric notified N W Region IViof a potentially 1* freportabloideficiency involving rejectableLind' cations in-containment j electrical-penetration structural welds. The last report ~ was TXX-91373 dated October 16, 1991., As discussed in TXX-91268, dated July 24, 1991, this issue involved seventy-five.(75) Unit.2 electrical penetrations that lacked-g volumetric ~ examinations required by the ASME Code. Ultrasonic examination of these>penetrationsidentifiedthree(3).withrejectableindications.

N' ALcalculation has been performed which demonstrates that the presence of

!these indications would not have: impaired the functional capability of-these.

ponetrations._'As-a result,'this deficiency would not havel adversely affected the" safety of plant; operations and-is not-reportable under the provisions of

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, 10CFR50.55(e).JHowever,-these-indicationshavebeencorrec*dto-complywith ithe ASME-Codel.-Records: supporting this determination are available-for=your

~ inspector's' review.. i

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- Sincerely,

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-William J. Cahill, Jr.

J.- l CBC/JAA/ ,

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ci-~ Mr. R. D..-Martin, RegionLIV

~', Resident Inspectors CPSES (2)-

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