ML20138G556
| ML20138G556 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 03/29/1983 |
| From: | Griffin H, Herr R NRC OFFICE OF INVESTIGATIONS (OI) |
| To: | |
| Shared Package | |
| ML20138G131 | List:
|
| References | |
| FOIA-84-291 Q4-83-007, Q4-83-7, NUDOCS 8512160352 | |
| Download: ML20138G556 (3) | |
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bFFICE OF INVESTIGATIONS FIELD OFFICE. REGION IV h
611 RYAN PLAZA DRIVE SUITE 1000 j'
ARLINGTON. TEXAS 76011
' REPORT OF INQUIRY March 29, 1983 4
SUBJECT:
WOLF CREEK 1'
GENERIC PROCEDURAL VIOLATION ON INTERMITTENT FILLET WELDS REPORT NUMBER: Q4-83-007 1.
dnMarch 17, 1983, while conducting interviews at Wolf Creek with Daniel International (DI)~ electrical QC inspectors during a separate investi-
~
'gation(4-83-005), DI QC Inspectors Steven Larson and Gary Andrade provided information concerning the existence of an NCR which had not as e
i yet been dispositioned by DI regarding intermittent fillet welds (stitch
-welds). Larson provided this investigator with a copy of NCR number 1SN9130E dated March 1, 1983, which described a generic procedural vio-
~
- lation involving intermittent fillet welds on various raceway supports throughout the power block which were not welded in accordance with AWS D1.1-75. The description of the nonconformance detailed that Article 1.5 of AWS D1.1-75 required that intermittent fillet welds used by themselves be located at the ends of the dimensioned length. The NCR l-listed examples of welds identified which did not begin and end at the
, ends.of the welded pieces. Larson and Andrade, who have been employed
- by DI for about four month,s, stated there are probably hundreds of such intermittent fillet welds improperly welded at Wolf Creek. Larson and
- ~
Andrade indicated that this same weld. configuration was used thrcughout the. power block without consideration being given to the load factor the i
. supports had to bear..They; stated they believed this situation would jconstitute 'a. substantial problem for DI, because of the number of welds
. involved.
~
~
'2.
On March 21, 1983, a copy of NCR number ISH9130E was provided to the NRC
-Senior Resident Inspector at Wolf Creek. A review of the contents of the '
NCR listed the originator as Merle A. Doan, a DI electrical QC lead; however, testimony taken from DI QC inspectors Larson and Andrade
-indicated Larson actually discovered the condition and initiated the NCR.- The names of Steven Larson and Gary Andrade were provided to the NRC SRI at Wolf Creek, and arrangements were made with these QC inspectors for confidential contact by an NRC inspector should additional information be j
required.
3.
On March 23, 1983, this information was also provided to the Region IV, i
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Q4-83-007 Page 2 Reactor Project Chief for Wolf Creek. A copy of this NCR is provided
- with this report as Attachment (1). This information is referred to NRC Region IV for whatever a.ction deemed appropriate.
No further.
investigation is anticipated at this time.
Attachment (1)-NCRISN9130E 3-01-83 Y-n H. Brooks Griffin, @estigator Office of Investigations Field Office Region IV
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APPROVED BY:
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Richard'K. Hefr, Director Office of Investigations Field Office Region IV cc:
W. J. Ward, 01:DF0 w/ attachment P. E. Baci, 01:DF0 w/attachemnt J. T. Collins, RIV w/o attachment W. Johnson, RIV w/attachemnt
. E.- H. Johnson, RIV w/o attachment 4
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UNITED STATES Cl-NUCLEAR REGULATORY COMMISSION
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OFFICE OF INVESTIGATIONS FIELD OFFICE. REGION IV
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REPORT OF INQUIRY gy f A
f March 29, 1983
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SUBJECT:
WOLF CREEK GENERIC PROCEDURAL VIOLATION ON INTERMITTENT FILLET WELDS REPORT NUMBER: Q4-83-007 1.
On March 17, 1983, while conducting interviews at Wolf Creek with Daniel International (DI) electrical QC inspectors during a separate investi-gation (4-83-005), DI QC Inspectors Steven Larson and Gary Andrade provided information concerning the' existence of an NCR which had not as H
yet been dispositioned by DI regarding intermittent fillet welds (stitch
~
welds).
Larson provided this investigator with a copy of NCR number i
ISN9130E dated March 1,1983, which described a generic procedural vio-i lation involving intermittent fillet welds on various raceway supnorts throughout the power block which were not welded in accordance with AWS D1.1-75. The description of the nonconformance detailed that Article 1.5 of AWS D1.1-75 required that intermittent fillet welds used by themselves be located at the ends of the dimensioned length. The NCR listed examples of welds identified which did not begin and end at the ends of the welded pieces.
Larson and Andrade, who have been employed i
by DI for about four months, stated there are probably hundreds of such intermittent fillet welds improperly welded at Wolf Creek.
Larson and Andrade' indicated that this same weld configuration was used-throughout l
~
the power block without consideration being given to the load factor the supports had to bear. They. stated they believed this situation would constitute a substantial problem for DI, because of the number of welds involved.
2.
On March 21, 1983, a copy of NCR number ISN9130E was provided to the NRC Senior Resident Inspector at Wolf Creek. A review of the contents of the NCR listed the originator as Merle A. Doan, a DI electrical QC lead; however, testimony taken from DI QC inspectors-Larson and Andrade indicated Larson actually discovered the condition and initiated the NCR. The names of Steven Larson1and Gary Andrade were provided to the NRC SRI at Wolf Creek, and arrangements were made with these QC inspectors for confidential contact by an NRC inspector should additional information be required.
3.
On March 23, 1983, this information was also provided to the Region IV, i
r 9 -