ML20214D632
| ML20214D632 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 10/02/1986 |
| From: | Kaushal N COMMONWEALTH EDISON CO. |
| To: | Byers R, Clinton M, Orlov G COMMONWEALTH EDISON CO. |
| References | |
| OL-I-ROREM-148, NUDOCS 8705210406 | |
| Download: ML20214D632 (5) | |
Text
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3rm e, January 23,'_1:98Y
,BCAP Memo #546
'87 APR 22 P7 :24 21 '..
DGCni TO:
R.
L.
Byers 2.
G.
M.
Orlov M.
A. Clinton FROM:
N.
N. Kaushal Over the last few days I have received input from several individuals that leads me to believs that it would be a good idea to do a midpoint look into the CSR activity.
During this process we will factor in the knowledge and ideas which have come forth from our experience in the process to date.
I would like us to not proceed any further;with~the inspection phase, except as specified by me in writing, until we have completed this midpoint look at the CSR activity.
E e
N.
N.
Kaushal BCAP Director a
NNK/sjs BCAP File QG 69.60.3 /
cc:
N.
P.
Smith, Q.A.
M. Wallace NUCLEAR REGULATORY COMMIS$1GN Docket No b
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1 January 24, 1985 BCAP Memo #551 l
TO:
R. L.
Byers j
G. M.
Orlov l
M. A.
Clinton FROM:
N. N. Kaushal This is a follow up to my Memo #546 dated January 23, 1985.
Based on my assessment of the situation I have concluded that we should proceed as follows:
We can proceed with.the inspections or reviews in all areas that I have previously given the release to.do so except in the area of concrete placement, piping hangers / supports, l
and electrical hangers and supports.
In the area of piping hangers / supports, we should expeditiously conclude the reinspection verification effort that we initiated last Friday.
This verification effort pertains to reinspection of certain configuration-related attributes on all-hangers / supports on whi.ch inspections were completed as of January 18, 1985.
Upon completion of this verification effort, we should assess j
the results and determine if any additional training of the i
inspectors in that area is necessary.
In any case the results of this verification effort should be fed-back to our inspection group.
Following completion of this feedback or training to tne inspection group, further inspections in the piping supports /
j hangers area may resume.
1 1
In the electrical hangers / supports areas, we.should hold a combined session between the electrical ~ inspection group and individuals from the BCAP electrical engineering group to insure that the inspectors have a clear' understanding of the inspection requirements and the use of the design documentation
- from which these inspection requirements are to be obtained.
Following this session, I would like to be briefed on the l
results.
If the results indicate that the inspectors are confident that they have a clear understanding of the inspection requirements, the inspections in the area of electrical hangers / supports will be allowed to proceed on my-specific approval.
A decision on the need for verification of reinspection work already completed in this area-will be made based on an evaluation of the results from this joint session.
1i0011651
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5 January 24, 1985 BCAP Memo #551 Page 2 Similarly in the civil / structural area, prior to proceeding with a new population such as the masonry walls, we should hold a joint session between the civil / structural inspection group and the civil / structural BCAP engineering group to assure that there is a clear understanding of the inspection requirements and the design documentation in the package from which these inspection requirements are to be obtained.
If after this session the inspectors indicate confidence they have a clear understanding of the inspection require-ments, the inspection in the new., population may proceed.
However, inasmuch as we have to carry out inspections on some additional attributes in the concrete placements area, we should not proceed with any further inspections in that population until we have fully reassessed the situation.
Please make sure that the results of the verification program, training sessions and any outcome of the joint sessions including any specific actions committed and lessons learnt are documented and retained.
b b.
N.
N. Kaushal, BCAP Director NNK/sjs BCAP File QG 69.60.3>/
cc:
Mike Wallace N.
P.
Smith, QA beap20 U0011652
1 April 15. 1985 BCAP Nemo 82034 l
To:
.1.
Menzo Clinton From:
J. S. Sexton subject:
Evaluation of Attributes
" Concrete Flacements" I
l
Reference:
BCAP Memo 8551. January 24. 1985
- l The referenced meno presented the conclusions reached from a'" midpoint Icok" at the knowledge and experiences gained from the CSR Reinspection activities through January 1985.
k one conclusion pertaining to the concrete placement area recognized that new population attributes would be needed to address some of the concerns and questions raised during the initial reinspections. These attribute additions also presented an opportunity to reassess concerns and experiences related to the original attributes completed during the initial inspections and to
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i incorporate appropriate provisions into the reverification activity.
Each attribute on the revised CER-I-S-001 checklist and instruction uns evaluated in light of the ERC. MRC and other concerns acctsoulated during the initial reinspections of 71 packages through January 1985. Conclusions by attribute are as follows:
1.
In:ation - All structures will be reverified where the initial verification was marked "N/A" due to lack of adequate survey marks. These packages have since been identified and appropriate survey marks have been placed to perform the location attribute requirements.
2.
Size - This attribute will not require reverification. There were no concerns expressed as to the accuracy of the initial verifications and this attribute was unaffected by revision 3 of the checklist instructions.
3.
Formed openings - Same adjustments as for attribute 81. Location, above.
4.
Surface Inspection - Selected structures will receive limited reverification as a result of revision 3 to the check!)st instructions.
i No major concerns were expressed as to the accuracy of the initial verifications.
j i
l 5.
Construction Joints - The ERC identified two (2) conditions related to this attribute (Reference ERC observations 10 and 12). Due to an extensive evaluation and the conditions identified by the ERC, this attribute will be reverified by BCAP Inspection personnel.
1 If0011653 (1291J)
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R. Clinton April 15. 1985 6.
Dabedded Plates - This attribute will receive limited reverification as a result of revision 3 to the verification checklist to include Cat. II ~
plates. Although ERC addressed several concerns with embedded plates during the initial verifications, they gen 6 rally identified inspector omissions and each was adequately addressed on a case by case basis.
However since several hundred embedded plates were inspected and naamarous task force observations were generated, the construction quality of the embedded plates is considered to be adequately described without further reverification.
7.
coatings - This is a new attribute ediich has been added to address concerns with concrete coatings in the containment at or below elevation 428'0".
There is no prior inspection experience with this attribute.
CoredHoles-Thisattributewasiditiallyaseparatepopulation.
8.
It has been integrated into the revised concrete placement population. There is no prior inspection experience with this attribute.
The additional reverification activities planned for attributes 1. 3. 4. 5. 6.
7 and 8 are considered sufficient to address the major concerns raised during the initial concrete placement reinspection activities.
Jl S.' Seit6n' a
BCAP Lead Inspector (Civil / Structural)
JSS/Irw cc: R. L. Byers C. Passeri BCAP File 69.60.3 QG 69.30.4.1
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110011654 (1291J) l
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