ML20062C404
| ML20062C404 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 07/23/1982 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, ANPP-21460-GHD, ANPP-21469-GHD, DER-82-4, NUDOCS 8208050245 | |
| Download: ML20062C404 (3) | |
Text
6 Docket Nos. 50-528/529/530 50.55(e) Report sTA. 3003 p.o. sox 23.. -
PHOENIX, ARIZONA 85036 July 23, 1982 ANPP-21460-CHD/BSK U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, California 94596-5368 Attention:
Mr. T. W. Bishop, Chief Reactor Construction Projects Branch
Subject:
Final Report - DER 82-4 A 50.55(e) Reportable Condition Relating to Design Specification Drawings For Instrument Tubing Clamps Do Not Show Locknuts As Required By ASME Code.
File: 82-019-026 D.4.33.2
Reference:
(A) Telephone Conversation between J. Berdoin and J. Cook on March 3, 1982 (B) ANPP-20607 dated April 1, 1982 (Interim Report)
(C) ANPP-21044 dated May 26, 1982 (Time Extension)
Dear Sir:
Attached is our final written report of the reportable deficiency under 10CFR50.55(e), referenced above.
Very truly yours,
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^q 4 E. E. Van Brunt, Jr.
APS Vice President Nuclear Projects ANPP Project Director L:j EEVBJr/GHD:db 7' '
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8208050245 820723 PDR ADOCK 05000528
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l U. S. Nuclear Regulatory Commission Attention:
Mr. T. W. Bishop, Chief ANPP-21460-GHD/BSK July 23, 1982 Page 2 l
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 A. C. Rogers l
B. S. Kaplan W. E. Ide J. Vorees J. A. Brand A. C. Gehr W. J. Stubblefheld W. G. Bingham R. L. Patterson R. W. Welcher R. M. Grant D. R. Hawkinson L. E. Vorderbrueggen
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G. A. Fiorelli Lynne Bernabei, Esq.
Harmon & Weiss 1725 "I" Street, NW Suite 506 Washington, D. C. 20006 R. L. Greenfield l
Assistant Attorney General Bataan Memorial Building Santa Fe, New Mexico 8703 i
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FINAL REPORT - DER 82-4 DEFICIENCY EVALUATION 50.55(e)
ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNITS 1, 2 & 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 illustrated a typical fastener and specified that the nut shall comply with NF requirements. The individuals using the specification did not refer to the NF section of the ASME III Code; thereby,it was felt that the specification did not contain sufficient information for Construction to comply with ASME III NF4725 which requinms threaded fasteners to be provided with locking devices such as jam nuts, stop nuts, or drilled and wired nuts.
II.
ANALYSIS OF SAFETY IMPLICATIONS This condition is evaluated as reportable under the requirements of 10CFR50.55(e).
If the instrument tubing were to become disengaged from the seismic supports, damage to the tubing could render the safety-related instrumentation inoperative.
III. CORRECTIVE ACTION Design Change Packages ISJ-CH-089, 2CJ-CH-089, and 3CJ-CH-089 have been issued to have all the installed clamps corrected to comply with the Code. Specification 13-JM-715 has been clarified to provide definitive instructions concerning the threaded fasteners.
To preclude recurrence, the individuals responsible for these installations have received the revised specification and have l
reviewed the Code requirements in detail.
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