ML17296A928
| ML17296A928 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 06/25/1980 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | |
| Shared Package | |
| ML17296A927 | List: |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, ANPP-15723-BSK, NUDOCS 8008270492 | |
| Download: ML17296A928 (6) | |
Text
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Ba CICSEBIRuRIW PHOENIX'RIZONA 85036 June 25, 1980 ANPP-15723-BSK/JAR U.
S. Nuclear Regulatory Commission Region V
Walnut Creek Plaza Suite 202 1990 North California Boulevard Walnut Creek, California 94596.
Attention:
Mr. G.
S.
- Spencer, Chief Reactor Construction and Engineering Support Branch
Subject:
A 50.55(e)
Reportable Condition Relating to Safety-Related Sway Struts File:
80-019-026
Reference:
Telephone Conversation between R. Dodds and B.
S. Kaplan on May 28, 1980
Dear Sir:
Attached, is our final-written report of the reportable deficiency under 10CFR50.55(e) relating to safety-related sway struts received and installed in Unit /Il of the Palo Verde Nuclear Generating Station.
Very truly yours,
~zU~
E. E. Van Brunt, Jr.
APS Vice President Nuclear Projects ANPP Project Director EEVBJr/BSK:skc Attachment
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Hr.
G.
S.
Spence Chief Reactor Construction and Engineering Support Branch ANPP-15723-BSK/JAR June 25, 1980 gage 2
CC ~
Victor Stello, Jr., Director Office of Inspection and Enforcement U. S. Xi'uclear Regulatory Commission Washington, D.
C.
20555 A.
C. Gehr Snell
& Wilmer R. L.
D. B.
W.
E.
B.
S.
A.
C.
J.
M.
W. H.
W.
G.
W. J.
J.
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R.
W.
D.
R.
Robb Fasnacht Ide Kaplan Rogers Allen Wilson Bingham Stubblefield Bashore Welcher Hawkinson
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~'INAL REPORT REPORTABLE DEFICIENCY 50.55(e)
ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNIT ill I
Descri tion of Deficienc During a Bechtel Power Corporation audit of ITT Grinnell Corporation, Marren, Ohio, twelve (12) Size 81 and Size
!/2, Figure 211 Sway Strut Assemblies (linear component standard supports) were found to have welds less than required by the ASME Section III Code.
ITT Grinnell Corporation Sway Struts, fabricated prior to November 15,
- 1980, had fillet weld requirements which were 1/16" undersized to ASME Section III Code.
Per Subsection NF, Appendix XVII, Paragraph 2452.1 and Table 2452.1-1, the fillet weld minimum requirement is 5/16".
ITT Grinnel Corporation drawings called for a 1/4" fillet weld.
The Bechtel audit revealed that the applicable supplier drawing was revised to require the correct fillet weld; however, ITT Grinnell Corporation did not rework or preclude shipment of "in-stock" items.
Subse-quent surveillance activity revealed the subject sway struts had been delivered to the PVNGS jobsite for use in safety-related piping systems.
A total of seventeen (17) struts have been received at PVNGS, seven (7) of which were installed, that were fabricated to undersized fillet requirements."
II Anal sis of Safet Im lications It cannot be determined without extensive analysis whether the above items, if not detected, could have resulted in a safety significant event since each sway strut installation is different.
This condition is considered reportable based on the supplier's noncom-pliance to purchase order specification requirements even after the noncomplying condition was documented in the supplier's facility prior to shipment.
III Corrective Action Stop cwork Notice 80-SM-3 was issued to prevent further installation of the discrepant struts.
A decision has been made to return the subject material to the supplier.
The project corrective action is to only install safety-related sway struts which comply with Code requirements.
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