ML19347C072
| ML19347C072 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 10/08/1980 |
| From: | Delgeorge L COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8010160542 | |
| Download: ML19347C072 (2) | |
Text
Commonwealth Edison f,
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Accress 9eciy o ?:s: 2:e Sox 767 Chicago, tihnois 60690 October 8, 1980 Mr. James G. Keppler, Director Directorate of Inspection and Enforcement - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137
Subject:
LaSalle County Station Unit 1 Small Pipe Hanger Design Deficiency 10 CFR 50.55(e) Final Report NRC Occket No. 50-373 Reference (a):
J.
S. Acel letter to J.
G. Keppler dated September 26, 1980
Dear Mr. Keppler:
Commonwealth Edison notified Mr. Cordell Williams of your office on Septemoer 10, 1980, of safety related 2" & under pipe hanger deficiencies at LaSalle County Station Unit #1.
Specifically, a recent NRC inspection at the site identified the following items associated witn 2" and under pipe hanger design work:
(1) Design work was being performed using guidelines in lieu of i
approved procedures.
(2) Design review standards were nct being maintained as controlled i
documents.
(3) Site oriented training of personnel involved in design was not being documented.
(4) Interface documents were not formally established to control the design review process.
(5) QA audits nad not been completed to cover the design activities j
at the site.
Due to these deficiencies, documented calculations for the support steel and load and location do not exist for a portion of the safety related 2" & under cice hangers.
Aporoximately 543 piping suosystems are involvec in tnis croclem.
The existing revieu program has been more clearly cocumentec to assure tnat the A-E reviews the installed hangers and performs calculations where
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3 Mr. James G. Keppler, Director October 8, 1980 g
Page 2
.4 necessary to document the adequacy of the hangers.
The items noted by the NRC have been corrected.
The Commonwealth Edison QA Dept.
has performed extensive audits in the area of design control and review.
In addition, a surveillance program to monitor the continuing work has been instituted.
Althougn these proolems reflect upon the adequacy of the Quality Assurance program apolicable to the small bore pipe hangers, it is l
judged based on the follow-up audits performed and the findings uncovereo ano reported to tne NRC, that the QA deficiencies to the extent they exist were limited to the field design interface associated with small bore pipe hangers.
The corrective action discussed with the NRC (Region III) on August 29 and September 5, 1980 are expected to resolve these apoarent deficiencies and will be the basis for closing this report under 10 CFR 50.55(e).
In this regard, the program for reporting progress on the corrective action to be taken was discussed in the meeting with your staff on September 5, 1980.
It was subsequently agreed by Commonwealth Edison that periodic reports would be suomitted to discuss tne progress of the work.
As mandated by your Staff, these reports will be initiated two weeks after receipt of the formal NRC inspection report.
This inspection report has not been received as of the date of this letter.
~
j Because the commitment to formal reporting of progress on i
corrective action has been documented in Item 3 of the Enclosure to i
Reference (a), no furhter recorts under 10 CFR 50.55(e) are judged l
necessary.
This conclusion is supporteo by the fact that a l
comprehensive review of tne subject deficiencies has already been j
completed by your staff and the primary purpose of tne future reports is to provide a completion status.
If there are any further questions in this regard, please direct them to this of fice.
j Very truly yours, L. O. DelGeorge Nuclear Licensing Administrator
-LaSalle County Station LOD / rap Inscection anc /
cc:
Direc cr cf Enforcement, DC RIII Inspector LSCS l
l ll k 7259A
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