ML20092G478
| ML20092G478 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 06/13/1984 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANPP-29744-TDS, DER-84-34, NUDOCS 8406250133 | |
| Download: ML20092G478 (3) | |
Text
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, $,[i. bJ Arizona Public Service Company 3 n 1.0 n',' 2: 5 9 June 13, 1984 s
s ANPP-29744-TDS/1RB U. G. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, CA 94595-5368 Attention: Mr. T. W. Bishop, Director Division of Resident Reactor Projects and Engineering Programs
Subject:
Interim Report - DER 84-34 A 50.55(e) Potentially Reportable Deficiency Relating To Critical Friction Type High Strength Connectors File: 84-019-026; D.4.33.2
Reference:
Telephone Conversation between P. Narbut and T. Bradish on May 17, 1984
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 August 10, 1984, at which time a complete report will be submi'~ed.
Very truly yours k
7 RW f\\ L d E. E. Van Brunt, Jr.
APS Vice President Nuclear Production ANPP Project Director EEVB/TRB:db Attachment ec: See Page Two 8406250133 840613 PDR ADOCK 05000528 S
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Mr. T. W. Bishop DER 84-34
- ' Page Two ec:
Richard DeYoung, Diraetor 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 L. A. Souza D. E. Fowler T. D. Shriver C. N. Russo J. Vorees J. R. Bynum J. M. Allen J. A. Brand A. C. Gehr i
W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher H. D. Foster D. R. Hawkinson L. E. Vorderbrueggen.
G. A. Fiore111 S. R. Frost J. Self D. Canady Records Center Institute,f Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, GA 30339 f
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INTERIM REPORT - DER 84-34 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNIT 1, 2, 3 I.
-Potential Problem During a Bechtel engineering inspection walkdown of critical,
~ friction type, high-strength connectors, it was discovered that several= bolts on the Safety Injection (SI) tank keyways had less than minimum specified torque, and slotted holes that were not completely covered by a plate washer.
(Additionally, the review found that the design did not provide a hardened washer under both the nut and bolt head as required by the Specification for Structural Joints using ASTM A325 or A490 Bolts.
Less than minimum specified torque was also detected on structural steel framing and main steam line structual steel support connections. These were addressed in reference letter B/ANPP-E-114700, May. 9,: 1984.
II.
Approach To End Status of Proposed' Resolution Bechtel engineering is currently _ studying this problem to determine reportability_and technical justification for corrective action. A draf t of the final report is scheduled to be issued for comments by June 15, 1984.
III. Projected Completion of Corrective Action and Submittal of the Final Report The complete evaluation and final report are forecast to be
. completed by August 10, 1984.
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