ML20132G649

Interim Deficiency Rept DER 85-28 Re C-E Instrument Rack Flexible Conduit Installation.Initially Reported on 850821. Bechtel Evaluation Incomplete.Next Rept Will Be Submitted by 851011

ML20132G649
Person / Time
Site:	Palo Verde
Issue date:	09/18/1985
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Kirsch D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
ANPP-33513-TDS, DER-85-28, NUDOCS 8510010593
Download: ML20132G649 (3)

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(_'y Arizona Nuclear Power Project 'J4 SfP 20 pn P.O. BOX 52034

• PHOENIX, ARIZONA 85072-2034 2h September 18, 1985 OfG!O!V ygp ANPP -33513 -TDS/ TPS U. S. Nuclear Regulatory Cmmission Region V 1450 Maria Lane - Suite 210 Walnut Creek, CA 94596-5368 ATTENTION: Mr. D. F. Kirsch, Acting Director Division of Reactor Safety and Projects

SUBJECT:

Interim Report - DER 85-28 A 50.55(e) Potentially Reportable Deficiency Relating to CE Instrument Rack Flexible Conduit Installation File: 85-019-026; D.4.33.2

REFERENCE:

Telephone Conversation between R. C. Sorensen and T. P. Siegfried on August 21, 1985

Dear Sir:

The NRC was notified of a potentially reportable deficiency in the referenced telephone conversation. At that time, it was estinnted that a determination of reportability would be made within thirty (30) days, (September 20, 1985).

Due to the extensive investigation and evaluation required, an Interim Report! is attached. It is now expected that this information will be finalized by October 11, 1985, at which time a complete report will be subnitted.

I l

very truly yours, EE M~ U/utwNr.g E. E. Van Brunt, Jr.

8510010593 8509 8 29 Executive Vice President PDR ADOCK O PDR Project Director S

EEVB/TPS/ tlm Attachment gg.

cc: See Page Two p- 7

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ANPP-33513-TDS/TPS September 18, 1985 Mr. D. F. Kirsch DER 85-28 Page Two cc:

• Richard DeYoung, Director Office of Inspection and Enforcamnt L. S. Nuclear Regulatory Conmission Washington , D. C. 20555 J. G Haynes D. B. Karner W. E. Ide D. B. Fasnacht A. C. Rogers L. A. Souza T. D. Shriver D. E. Fowler C. N. Russo J. R. Bynum J. M. Allen D. R. Canady A. C. Gehr G. A. Hierzer W. G. Binghan R. L. Patterson R. W. Welcher H. D. Foster D. R. Hawkinson R. P. Zimmmm M. L. Clyde B. T. Parker T. J. Bloom D. N. Stover J. D. Houchen J. E. Kirby Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339

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INTERIM REPORT - DER 85-28 POTENTIAL REPORTABLE DEFICIENCY ARIZONA NUCLEAR POWER PROJECT PVNGS UNIT 2, 3

1. PorENTIAL PROBLEM C-E Letter V-CE-32386 indentified problems with Unit 2 Service Air flexible stainless steel conduit installations on the C-E supplied instrument racks. Approximately 50 percent of the conduit installations do not neet mininun conduit bend radius specification of 1.67 inch at centerline of the conduit.

Seventeen (17) flex conduits have been damaged to the extent that the inner conduit tubing was broken.

Additionally, approximately 20-30 percent of the nuts on the service air fittings were found to be loose. Three of the conduits were found to be canpletely disconnected from the fittings. Unit 1 conduit was not Service Air Supplied and, therefore,this does not apply to Unit 1.

II. APPROACH 'IO AND STATUS OF PROPOSED RESOLUTION Bechtel Engineering is currently studying this problem to determine reportability and technical justification for corrective action.

Bechtel is evaluating the impact ofinstrument failure in respect to reactor control and design requirements.

Bechtel review of APS caments (received Septenber 11, 1985) is ongoing.

III. PROJECTED COMPLETION OF CORRECTIVE ACTION AhD SUBMITTAL OF THE FINAL REPORT

'Ihe complete evaluation and final repre are forecast to be completed by October 11, 1985.