ML20084J753

Revised Interim Part 21 & Deficiency Rept Re Failure of HPSI Isolation Valves Supplied by Borg-Warner to Open Against HPSI Pump a & B Flows.Initially Reported on 830920. Reevaluation Incomplete.Next Rept by 840720

ML20084J753
Person / Time
Site:	Palo Verde
Issue date:	04/30/1984
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
REF-PT21-84-348-000 ANPP-29395-BSK, DER-83-63, PT21-84-348, PT21-84-348-000, NUDOCS 8405100056
Download: ML20084J753 (3)

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April 30, ?934 ~~

ANPP-29395 'lSK/TRB TJ 7

U. S. Nuclear Regulatory Commission ,

Region V .

p Creekside Oaks Office Park '

1450 Maria Lane'- Suite 210 Walnut Creek, CA 94596-5368

• Attention: Mr. T. W. Bishop, Dit.itor > .

• Division of Resident Reactor Projects and Engineering Programs

Subject:

Interim Report, Revision 1 - DE2 83-63 A 50.55(e) Potentially Reportab1<r Deficiency Relating to HPSI Isolation Valves By Borg-Warner railed To Open Against HPSI

'A' and 'B' Pump Flows.

File: 84-019-026; D.4.3 3.2

Reference:

A) Telephone Coniet aation between P. Narbut and R. Tucker on September 20, '1983 B) ANPP-28072, dated October 24, 1984 (Interim Report)

C) ANPP-28954, dated February 28,1984 (Time Extension)

D) ANPP-29131, dated March 22, 1984 (Final Report)

E) Telephone conversation between P. Narbut and T. Bradish on April 2, 1984

Dear Sir:

The NRC was notifi e d of a reportable deficiency in Reference A, an Interim Report was transmitted by Reference B, a Time Extension was requested by Reference (C), and a Final Report was transmitted by Reference (D).

The NRC was notified in Reference (E), that the corrective action specified in Reference (D) failed to correct the deficiency and the subject DER had been re-opened.

Due to the extensive investigation and evaluation required, a revised Interim Report is attached. It is now expected that this information will be finalized by July 20, 1984, at which time a complete report will be submitted.

Very truly ou s, 9.E u E. E. Van Brunt, Jr.

et APS Vice President, Nuclear ANPP Project Director EEVB/TRB:db Attachment cc: See Page Two -

8405100056 840430 gDRADOCK05000g /(.2}

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l, Mr. T. W. Bishop DER 83-63 Page Two ec: Richard DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 T. G. Woods, Jr.

D. B. Karner W. E. Ide D. B. Fasnacht A. C. Rogers B. S. Kaplan L. A. Souza D. E. Fowler J. Vorees J. R. Bynum J. M. Allen P. P. Klute A. C. Gehr W. J. Stubblefield W.-C.-Bingham R. L. Patterson R. W. Welcher H. D. Foster D. R. Hawkinson L. E. Vorderbrueggen C. A. Fiore111 S. R. Frost J. Self D. Canady Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 '

Atlanta, GA 30339 w __ _ __- ,O_

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INTERIM REPORT - REVISION 1 - DER 83-63 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC. SERVICE COMPANY (APS)

PVNGS UNITS 1, 2 Due to the additional scope of this condition, this interim report is being issued to supersede the final report, dated March 22, 1984.

I Potential Problem While attempting to open valves SIA-UV-617, SIA-UV-627, SIA-UV-637, SIA-UV-647, SIB-UV-616, SIB-UV-626, SIB-UV-636, and SIB-UV-646 against HPSI "A" & "B" pump flows the valves would not open. The valsa motor operators torqued out immediately after the bypass switch opened. The corrective action outlined in the final report has'been determired to be insuf ficient. Additionallys two other valves have been identified as having similar problems with the motor cperators. They are valves SIA-UV-666 and SIB-UV-667, HPSI pump mini-flow isolation valves.

The eight (8) High Pressure Safety Injection Isolation valves are Borg Warner Model No. 77620-2. The two High Pressure Safety Injection Pump 2ecirculation Isolation valves are Borg Warner Model No. 77620-4 (Unit 1) and 77620-3 (Units 2 and 3)'. All of the valves have the same model motor cperators (Limitorque SMC-04-7.5).

II. Approach To and Status of Proposed Resolution Bechtel Engineering is corresponding with C-E to obtain a complete disposition.

J III. Projected Completion of Corrective Action and Submittal of the Final Report

. Evaluation of this condition and submittal of the Final Report iu Forecast to be completed by-July 20, 1984.

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