ML20085J928

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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 Luminant icon.png
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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E Log # TXX-91393 File # 10110

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Ref. # 10CFR5055(e)

NELECTRIC October 23 1991

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U. 5. huclear Regulatory Commission-Attention:. Document Control Desk

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Washington, D. C.

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SUBJECT:

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

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- DOCKET H0.t50-446

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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 10CFR50.55(e).JHowever,-these-indicationshavebeencorrec*dto-complywith

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ithe ASME-Codel.-Records: supporting this determination are available-for=your

~ inspector's' review..

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.J Sincerely,

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-William J. Cahill, Jr.

J.- l CBC/JAA/

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

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Resident Inspectors CPSES (2)-

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L91'10300011 - 911023 -

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