ML20072D702
| ML20072D702 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 06/08/1983 |
| 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-24002-BSK, DER-82-73, NUDOCS 8306230379 | |
| Download: ML20072D702 (3) | |
Text
U MCEIVED i:nc Arizona Public Service Company P.o. BOX 21666. PHOENIX. ARIZONA 85036 j.
JR! l 7 pg ;3 3" June 8, 1983 ANPP-24002-BSK/RQT MWQ!w;7.-
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U. S. Nuclear Regulatory 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, Revision 1 - DER 82-73 A 50.55(e) Potentially Reportable Deficiency Relating to ITT Grinnell Pipe Support Clamps In Unit 2 MSSS Have Excess Gap, May Not Properly Secure Pipe.
File: 83-019-026; D.4.33.2 Re ferenc e: A) Telephone Conversation between P. Narbut and G. Duckworth on Nov. 24, 1982.
B) ANPP-22589, dated Dec. 23, 1982 (Interim Report)
C) ANPP-23222, dated March 10, 1983 (Time Extension)
D) ANPP-23428, dated April 5,1983 (Time Extension)
Dear Sir:
The NRC was notified of a potentially reportable deficiency in Reference A, an Interim Report was transmitted by Reference B, and Time Extensions were requested by References (C) and (D). At that time, it was estimated that a Final Report would be available by June 21, 1983.
Due to the extensive investigation and evaluation required, a revised Interim Report is attached.
It is now expected that this information will be finalized by Sept. 1, 1983 at which time a complete report will be submitted.
Very truly you.s, f
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91 edt,E b E. E. Van Brunt, Jr.
APS Vice President, Nuclear Projects Management ANPP Project Director EEVB/RQT:ru Enclosure cc:
See Page 2 6306230379 830600 PDR ADOCK 05000529 PDR
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U. S. Nuclear Regulatory Commission Page 2
' Richard DeYoung, Director cc:
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. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher R. M. Grant D. R. Hawkinson L. E. Vorderbrueggen G. A. Fiorelli S. R. Frost Records Center Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, GA 30339 i
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REVISED INTERIM REPORT -DER 82-73 POTENTIAL REPORTABLE DEFICIENCY
' ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNIT 2-I.
' Potential' Problem During conduct of a template check on pipe clamps supplied by ITT
- Grinnell per Purchase Order 10407-13-PM-209, it was found that an excessive gap existed between the pipe and pipe clamp across the width of the clamps. This condition resulted in a sliding fit
- rather than the' required secure' fit necessary for the associated snubber; or sway strut to function as designed.
II. - Approach To And Status Of Proposed Resolution i Grinnell has identified the sliding fit as correctable by appropriate shimming and tightening of. the outer bolts. Grinnell has: confirmed' that the clamps are acceptable for use with two or four area contact. However, additional clarification has been requested from Grinnel on the resulting effects on the pipe wall.
III. Projected Completion Of Corrective Action And Submittal Of The Final Report Evaluation of this condition and submittal of the Final Report is
-Forecast to be completed by Sept. 1, 1983.