ML20052C000
| ML20052C000 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 04/01/1982 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Faulkenberry B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, ANPP-20607-GHD, DER-82-4, NUDOCS 8205040248 | |
| Download: ML20052C000 (3) | |
Text
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.;'o-Docket Nos. 50-528/529/530 50 55(e) Report
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Attention:
Mr. B. H. Faulkenberry, Chief cars (';}N U d
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Engineering Support Branch p
Subject:
Interim Report - DER 82-4 A 50.55(e) Reportable Deficiency Relating to Design Specification Drawings for Instrument Clamps Do Not Show Locknuts As Required by ASME III Code File: 82-019-026 D.4.33.2
Reference:
Telephone Conversation between J. Berdoin and J. Cook on March 3, 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 additional investigation and corrective action required, an Interim Report is attached.
It is now expected that this information will be finalized by May 26, 1982, at which time a complete report will be submitted.
Very truly ours 0SA
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E. E. Van Brunt, Jr.
APS Vice President Nuclear Projects ANPP Project Director EEVBJr/GHD:ske Attachment cc:
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U. S. Nuclear Ragulatory Commission Attention:
Mr. B. H. Faulkenberry, Chief April 1, 1982 ANPP-20607-CHD/BSK Page 2 cc:
Richard DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C.
20555 J. A. Roedel D. B. Fasnacht G. C. Andognini F. W. Hartley J. M. Alles.
A. C. Rogers B. S. Kaplan W. E. Ide J. Vorees 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 R. L. Greenfield Assistant Attorney General Bataan Memorial Building Santa Fe, New Mexico 87503 Ms. Patricia Lee Hourihan 6413 South 26th Street Phoenix, Arizona 85040 l
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INTERIM REPORT - DER 82-4 REPORTABLE DEFICIENCY 50.55(e)
ARI' ZONA'PUBLIC-SERVICE COMPANY (APS)
PVNGS UNITS 1, 2 AND 3 1.
Description of Deficiency During a review of the safety-related instrument tubing. clamps, it was found that locking devices were not installed on the threaded fasteners. The drawings contained in the Design Specification illustrate a typical fastener using a single ASME III NF nut.
This was not sufficient information for Construction to comply with ASME III NF4725 which requires threaded fasteners to be provided with locking devices such as jam nuts, stop nuts, or drilled and wired nuts.
This condition is evaluated as Reportable under the requirements of 10CFR50.55(e).
If the instrument tubing were to become dis-engaged from the seismic supports, damage to the tubing could render the safety-related instrumentation inoperative.
II.
Approach To and Status Of Proposed Resolution Design Change Packages will be issued to have all the installed clamps corrected to comply with the Code, and Specification 13-JM-715 will be clarified to provide definitive instructions concerning the threaded fasteners.
III. Projected Completion of Corrective Action and Submittal of the Final Report Evaluation of this condition and subnittal of the Final Report is forecast to be completed by May 26, 1982.