ML20083G771
| ML20083G771 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 11/30/1983 |
| 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-28323-BSK, DER-83-53, NUDOCS 8401040338 | |
| Download: ML20083G771 (4) | |
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Arizona'Public 88 sten Company PHO@dAPt2ONA 85036 PO BOX 21666 e V:33 DEC I4 ppb >e,her 30, 1983 ANPP-28323-BSK/KCP REGICNy: t.
U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, CA 94596-5368 Attention: Mr.' T. W. Bishop, Director Division of Resident Reactor Projects and Engineering Programs
Subject:
Interim Report, Revision 1 - DER 83-53 i
A 50.55(e) Potentially Reportable Deficiency Relating to Unit 3 Embed Plates Do Not Meet Specification on WPP/QCI Requirement s.
File: 83-019-026; D.4. 33.2
Reference:
A) Telephone Conversation between P. Narbut and R. Tucker on August 1,1933 B) ANPP-27597, dated August 26, 1983 (Interim Report)
Dear Gir:
The NRC was notified of a potentially reportable deficiency in Reference A, and an Interim Report was transmitted by Reference B.
At thet time, it was estimated that a Final Report would be available by November 30, 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 February 15, 1984, at which time a complete report will be submitted.
Very truly yours, EDidaufwc 8401040330 831130 E. E. Van Brunt, Jr.
PDR ADOCK 05000530 APS Vice President, S
PDR Nuclear Projects Management ANPP Project Director EEVB/KCP:ru Attachment ec: See Page 'IVo py-
j Mr. T. W. Bishop DER 83-53 Page Two ec:
. Richard DeYoung,' Director 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 D. D. Green
'P.
P. Klute 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 J. Self D. Canady-Records Center Institute of Nuclear Power Operations 1100 circle 75 Parkway. Suite 1500 Atlanta, GA 30339 1
4 80 I INTERIM REPORT - REVISION 1 - DER 83-53 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNIT 3 1.
POTENTIAL PROBLEM Construction installation of Type N embed plates in Containment 3 failed to meet specification and WPP/QCI requirements.
A damaged beam in NW Qual at the 100' 6" elevation was being removed per NCR CC-4043 disposition, when it was discovered that two (2) Type N insert plates were installed without the four (4) 1" X 9" lg. suchor bolts.
Concrete post placement inspection of insert plates for 3C081 has not yet been performed.
In addition the following listed NCRs summarize the embed plant / anchor bolt problems by specific NCR number.
TOTAL NO.
TOTAL EMBED TOTAL POLTS TOTAL EMBED PLATES WlTH TOTAL BOLTS REQUIRING BOLTS NCR NO.
PLATES OBSCURED BOLTS OBSCURED PLUG WELDING MISSING CG-4259 78 9
14 153 2
CF-4 260 593 477 1136 197 2
CJ-4261 183 19 32 352 2
CC-4262 73 22 101 90 3
CC-4263 53 49 98 4
1 CY-4254 11 5
8 11 0
LC-4265 52 10 15 86 1
CC-4266 223 61 279 340 1
CA-4267 165 3
24 239 8
II.
APPROACH TO AND STATUS OF PROPOSED RESOLUTION An Engineering walkdown team was formed to investigate embedded plates listed in the NCRs to determine the structural adequacy of the cited embedded plates. The results to date can be summarized as follows:
1.
The anchor bolts with visible insufficient thread engagement were plug welded in accordance with Section 7.4 of Spm ification No. 13-CM-3 08.
2.
Embedded plates with identified missing bolts (1 or 2 missing
/ i bolts per plate) were evaluated individually, and found to be structurally acceptable as the "as built" plate design capacities are higher than the applied loads. However, DCNs have been issued for all the plates with missing bolts to prevent additional attachments or loads.
3.
The two defective type N plates in the Unit 3 Containiment Building were replaced by new plates with Maxi-bolts (documented in NCR CC-4201).
[
' j.
- i. e -
Interim Report - Rev. 1 DER 83-53 Page Two 4.
One embedded plate on the Turbine Pedestal with all bolts missing was removed by DCN and deleted' from Unit 3 engineering
~ design drawing.
- 5.. Embedded plates with bolts covered by attachments were evaluated individually and all were found to be structurally acceptable except for 3 evbedded plates in the Containment Building which still are under investigation.
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 February 15, 1984.
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