ML20082F797
| ML20082F797 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 11/14/1983 |
| From: | Farrar D COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20082F761 | List: |
| References | |
| 7587N, NUDOCS 8311290250 | |
| Download: ML20082F797 (3) | |
Text
,['^'N Commonwrith Edison
/
) one First National Plaza Chicago. Ilhnois t.
\\ - s J Address Reply to: Post Office Box 767
'N Chicago, lilinois 60690 November 14, 1983 Mr. James G. Keppler, Regional Administrator
- Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137
Subject:
Braidwood Station Units 1 and 2 Supplemental Response to IE Inspection Report Nos. 50-456/83-02 and 50-457/83-02 NRC Docket Nos. 50-456/457 References (a):
D. L.
Farrar letter to J. G. Keppler dated April 29, 1983 (b):
D.
L.
Farrar letter to J. G.
Keppler dated July 8, 1983 (c):
D.
L.
Farrar letter to J.
G.
Keppler dated September 7, 1983 (d):
C. E.
Norelius letter to Cordell Reed dated March 23, 1983
Dear Mr. Keppler:
References (a), (b), and (c) provided the Commonwealth Edison Company thirty day and supplemental responses respectively to the Reference (d) Inspection Report for our Braidwood Station.
The purpose of this letter is to address the remaining concern raised by Mr. R. C. Knop of your of fice during the " communications" meeting of October 21, 1983 at Braidwood Station concerning Violation Number 3.
In our Reference (c) supplemental response, we stated our position as follows:
" Commonwealth Edison Company authorized the revision for the installation of Jam nuts for all sliding connections as an added precaution to prevent the occurrence of the first nut becoming loose and disengaging from the connection."
In doing so, it was and remains our judgement that the plant modification to install jam nuts on slotted l
structural steel connections was properly reviewed and l
approved by the Project Engineering Department (PED).
This l
modification was issued in accordance with Sargent & Lundy procedures and reviewed in accordance with Commonwealth Edison QA Manual, Quality Procedure QP 3-1.
8311290250 831123 PDR ADOCK 05000456 NOV 151983 G
=
t
,. Quality Procedure 3-1, paragraph 3.4 describes the responsibility of the Project Engineering Manager.
Paragraph 4.2 describes the design review process and specifics involved during the design evaluation.
Paragraph 4.3 describes how the design review is documented.
Design documents authorizing the structural steel changes were reviewed by PED as required and in accordance with the absve paragraphs.
Documentation of the review is available in our Project Engineering office consisting of drawing distribution letters reviewed in accordance with QP 3-1."
The following documentation exists within the Project Engineering Department (PED) files that documents the PED design review of the modification involving the installation of Jam nuts for sliding structural bolted connections.
1.
For drawing S-1097 Rev. U dated 10-15-82, evidence of design review by PED is the S&L drawing distribution letter dated 10-28-82 that was stamped with the QP 3-1 stamp and initialed by W. F. Segersell on 11-9-82.
2.
For drawing S-960 Rev. M (incorrectly stated as Revision N in Reference (b)) dated 3-18-83, evidence of design review by PED is the Drawing Management System (DMS) drawing distribution letter dated 3-31-83 that was stamped with the QP 3-1 stamp and initialed by W.
F. Segersell on 5-25-83.
3.
For ECN-3270 dated 1-4-83, the PED copy of same could not be located and as a result, the date of its actual review by PED remains indeterminate.
However, for this ECN-3270 dated 1-4-83, evidence of design review by PED per QP 3-1 is the review of all the design documents that were affected by the ECN.
The affected design documents are the following drawings:
6/20 E-3282 l
6/20 E-3284 l
6/20 E-3289 I
6/20 E-3294 I
6/20 E-3393C 6/20 E-3393D 6/20 E-3393H Evidence of the review of drawings 6/20 E-3282, 3284, 3289 and 3294 is the DMS drawing distribution letter dated 8-30-83 that t
has been stamped with the QP 3-1 stamp and initialed by J.
J.
Dennehy on 9-12-83.
Evidence of the design review of drawings 6/20 E-3393C, D, and H j
is the DMS drawing distribution letter dated 6-14-83 that has been stamped with the QP 3-1 stamp and initialed by J.
J.
Dennehy on 7-6-83.
c
. To the best of my knowledge and belief, the statements contained herein are true and correct.
In some respects these statements are not based on my personal knowledge but upon information furnished by other Commonwealth Edison employees and consultants.
Such information has been reviewed in accordance with Company practice and I believe it to be reliable.
It is hoped that the above information will allow for Region III Staff completion of their review of the jam nut issue.
Please address any questions concerning this matter to this office.
Very truly your j
- f. ;, --
/'
De,nis L.
Far n
Dirsctor of Nuclear Licensing cc:
RIII Inspector - Braidwood 7587N I
l 1
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