ML20077M140

Interim Deficiency Rept DER 83-56 Re Operational Difficulties W/Msivs Supplied by Anchor Darling.Initially Reported on 830802.Seminar Planned for Personnel Re Maint of Hydraulic Actuators.Final Rept Expected by 831130

ML20077M140
Person / Time
Site:	Palo Verde
Issue date:	08/22/1983
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Sternberg D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
10CFR-050.55E, 10CFR-50.55E, ANPP-27606-BSK, DER-83-56, NUDOCS 8309120219
Download: ML20077M140 (3)

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Arizona Public Service Company * .?Eo g

PO. BOX 21666

• PHOENIX. ARIZONA 85036 g [fg' '/

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August 22, 1983 4b.

/7 ANPP-27606-BSK/RQT E/;h. ,

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U. S. Nuclear Reguistory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, CA 94596-5368 Attention: Mr. D. M. Sternberg, Chief Reactor Projects Branch 1

Subject:

Interim Report - DER 83-56 A 50.55(e) Potentially Reportable Deficiency Relating to Discrepancies With Main Steam Isolation Valves By Anchor Darling.

File: 83-019-026; D.4.33.2

Reference:

Telephone Conversation between P. Narbut and R. Tucker on August 2, 1983.

i

Dear Sir:

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

Due to the extensive investigation and evaluation required, an Interim Report is attached. It is now expected that this information will be finalized by November 30, 1983, at which time a complete report will be submitted.

Very truly yours, W

k E. E. Van Brunt, Jr.

APS Vice President, Nuclear Projects Management .

ANPP Project Director EEVBJr./RQT:sn Attachment cc: See Attached Page Two 8309120219 030822 PDR ADOCK 05000528 gg S PDR N9 ,

U. S. Nuclear Regulatory Commission Page Two '

cc: Richard DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 T. G. Woods, Jr.

G..C. Andognini J. A. Roedel D. B. Fasnacht A. C. Rogers B. S. Kaplan W. E. Ide J. Vorees J. R. Bynum P. P. Klute/D. D. Green A. C. Gehr W. J. Stubbiefield W. G. Bingham R. L. Patterson R. W. Welcher R. M. Grant.

D. R. Hawkinson L. E..Vorderbrueggen G. A. Fiore11i S. R. Frost J. Self Records Center Institute of Nuclear Power Operations 1100 circle 75 Parkway - Suite 1500 Atlanta, Georgia 30339 i

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INTERIM REPORT - DER 83 POTENTIAL REPORTABLE DEFICIENCY

, ' ARIZONA PUBLIC SERVICE COMPANY (APS)

PVNGS UNIT 1

1. Fotential_ Problem

Specification 13-MM-234A specifies operability requirements for the Main Steam Isolation Valve (MSIV).

During the Hot Functional testing program, the project experienced considerable operational difficulites with the MSIVs supplied by Anchor / Darling Valve (A/DV). Repeated component failures required rework and modification in order to commission the valves for testing. The problems range from safety considerations such as oil and nitrogen leakage to operability concerns such as valve closure time, valve float, and valve droop.

II. Approac'h .To and Status. _Qf _ Proposed Resolution .

Bechtel has been' corresponding with A/DV to resolve the conditions.

The action plan is a craining_ seminar presented by A/DV to

!- maintenance, operations and startup personnel. The seminar will cover maintenance of the hydraulic actuators. BPC Engineering will be present-at the training seminar to discuss the operational difficulties with A/DV and evaluate A/DV recommendations for corrective action to the valves.

III.- Project.ed .C.oggleti_on Of Corrective Action .and Submittal. of The Final Renort Evaluation of this condition and submittal of the Final Report is forecast to be completed by November 30, 1983.

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