ML20063P207
| ML20063P207 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 09/30/1982 |
| From: | Van Brunt E, Vanbrunt 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-21927-GHD, DER-82-48, NUDOCS 8210130187 | |
| Download: ML20063P207 (3) | |
Text
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Dockr.t nos. 50-528/529/530 c, -
50.55(o) Rrport 7
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peoENix. ARI2oNA 85036 STA.
September 30, 1982 ANPP-21927-GIID/BSK U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, California 94596-5368 Attention:
Mr. D. M. Sternberg, Chief Reactor Projects Branch 1
Subject:
Interim Report - DER 82-48 A 50.55(e) Potentially Reportable Deficiency Relating to Dragon Valve Company Instrument Line Check Valves Seized Open By Welding IIeat File:
82-019-026 D.4.33.2
Reference:
Telephone Conversation between T. Young and G. Duckworth en September 1, 1982
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 December 6, 1982, at which time a complete report will be submitted.
Very truly yours,
> c O
c cucb ut E. E. Van Brunt, Jr.
APS Vice President Nuclear Projects Management ANPP Project Director EEVBJr/ Gild:db
'll Attachment
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cc: See Attached Page 2 8210130187 820930
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DR ADOCK 05000528 PDR 1
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- U. S. Nuclear. Regulatory Commission September 30, 1982 Attention:
Mr. D. M. Steraberg, Chief ANPP-21927-GHD/BSK Page 2
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cc: Richard DeYoung, Director Office of Inspection and Enforcement U.- S. Nuclear Regulatory Commission Washington, D. C. 20555 T. G. Woods, Jr.
J. A. Roedel' D. B. Fasnacht G. C. Andognini
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A. C. Rogers B. S. Kaplan W. E. Ide J. Vorces J. A. Brand A. C. Gehr W. J. Stubblefield W. G. Bingham R. L.-Patterson R.' W. Welcher R. M. Grant D. R. Hawkinson L. E. Vorderbrueggen G. A. Fiorelli Lynne Bernabei, Esq.
Harmon & Weiss 1725 "I" Street, NW Suite 506 Washington, D. C. 20006 R. L. Greenfield Assistant Attorney General Bataan Memorial Building Santa Fe, New Mexico 87503 i
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.s, INTERIM REPORT - DER 82-48 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNIT 1 I. POTENTIAL PROBLEM An installation problem has been encountered with the Excess Flow-Check Valves supplied by Dragon Valve Company. Thermal expansion of the valve body during welding assembly with the piping systems causes the poppet to seize in the open position. This condition precludes the device from performing its intended function of preventing loss of fluid in the event of instrument tubing rupture or loss of pressure downstream of the check valve.
i II. APPROACH TO AND STATUS OF PROPOSED RESOLUTION Bechtel is currently persuing this matter with' Dragon Valve Company to establish an appropriate corrective action plan.
III. PROJECTED COMPLETION OF CORRECTIVE ACTION AND SUBMITTAL OF THE FINAL REPORT Evaluation of this condition and submittal of the Final Report is 4
forecast to be completed by December 6, 1982.
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