ML20093D028
| ML20093D028 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 09/21/1984 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANPP-30599-TDS, DER-84-33, NUDOCS 8410110043 | |
| Download: ML20093D028 (4) | |
Text
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Arizona Public Service Company z
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- September 21, 1984 ANPP-30599-TDS/1RB
' U. S. Nuclear-Regulatory Commission Region V-Creekside Oaks Office Park '
1450 Maria Lane - Suite 210 Walnut Creek, California 94596-5368 1
Attention: Mr. T. W. Bishop, - Director Division-of Resident Reactor Projects and' Engineering Programs
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Subject:
Pinal Report - DER 84-33 A 50.55(e) Reportable Condition Relating To Incorrectly Installed Hanger Support Assembly.
Pile: 84-019-026; D.4.33.2 Ref erence: A) Telephone' Conversation -between P. Narbut an'd T. Bradish on
-May 4, 1984 B) ANPP-29642, dated June 4,1984 '(Interim Report)
~ C)- ANPP-30130, dated August 6,1984 (Time Extension D), ANPP-30356, dated August 29,1984 (Time Extension)
Dear Sir:
Attached is our final written report of the deficiency referenced above, which has been determined to1 be Not Reportable under the requirements of
-10CFR50. 55( e).
Very truly.yours,.
{
Ce E. E. Van Brunt, Jr.
APS Vice President Nuclear Production ANPP Project Director
'EEVB/TRB/nj
-Attachment-cc: =See Page Two
~'8410110043 840921 PDR ADOCK 05000528' S-PDR 1
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Mr. T. W. - Bishop DER 84-33 Page Two-cc:
_ Richard DeYoung,1 Director Office of Inspection and Enfomement U. S. Nuclear Regulatory Comission 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. S hrive r C. N. Russo J. Vorees J. R. Bynum J. M. Allen J. A. Brand A. C. Gehr W. J. Stubblefield W'. G. Bingham R. L. Patterson R. W. Welcher H. D. Foster ~
D. R. Hawkinson L. E. Vorderbrueggen R. P. Zimerman S. R. Frost L. Clyde M. Woods T. J. Bloom D. N. Stover Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, GA 30339
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' FINAL, REPORT - DER 84-33
' DEFICIENCY. EVALUATION 50.55(e)
ARIZONA PUBLIC SERVICE COMPANY ( APS)
PVNGS UNIT 1 m
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I.
' Description of' Deficiency Pipe support. assembly 1-SI-070-H-011 was installed and-accepted by Field Engineering and Quality Control to Rev. ' 2 of'
- drawing 13-SI-070-H-Oll and FCR 51,022-P1 in December,1982.
The design ^ drawing shows a weld. between Item A (south end of support) and the insert plate. During -the September 1983 NRC inspection of Train A of the Safety Injection System, a number of supports were-found with nonconforming conditions. These findings instigated DER 83-74 and a subsequent inspection which included the subject support. ' Both of these inspections
- failed to detect that the weld was missing, even though this is a similar condition to those reported in DER 83-74. The missing weld was discovered during a random inspection' by APS and was reported on NCR PA-8390 Based on the results of the reinspection program documented in DER 83-74 and the results to date of the QC Effectiveness Program (see III.C.2, below), this deficiency has. been determined to be an isolated incident.
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II..
Analysis of Safety Implications Engineering ' calculation analysis 13-MC-SI-503R provides justification that this nonconforming pipe support weld, as well as those reported in DER 83-74, would not degrade-the structural integrity of the. pipe support, and if lef t
. uncorrected, would not represent a significant safety condition. Based on the above-mentioned calculation,.the reported condition is evaluated as not reportable under the requirements of 10CFR50.55(e) and 10CPR Part 21.
III.
- Corrective Action A. NCR No. PA-8390 was dispositioned "use-as-is."
B. Subsequently, as a discretionary action, a new NCR PA-8630 was initiated and dispositioned to add the weld in order to precludo any poasible concern regarding addition of possible future. loads to the support.
' C. To -improve inspection standards in Units 1, 2, and. 3, the following training sessions, including specialized training on inspection techniques, have been conducted with QC personnel:
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Mr. T. W. Bishop
-DER 84-33 Page'-Two.
- 1. Documented training has been given to all Quality :
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Control Engineers..
- 2. On February - 27,1984 the QC Effectiveness Program was.
' nitiated requiring the Pipe Support Supervisor to i
verify completed inspections made by the Pipe Support QCEs and present the results of the reverification to.
the PQCE.for the required corrective action. The reverification activities are accomplished in accordance-with QC Administrative Instruction No.1.