ML19260D781: Difference between revisions

From kanterella
Jump to navigation Jump to search
(Created page by program invented by StriderTol)
 
(Created page by program invented by StriderTol)
Line 17: Line 17:


=Text=
=Text=
{{#Wiki_filter:-                                                    Attachment to
{{#Wiki_filter:-                                                    Attachment to Ilove-26-80 Bechtel Power Corporation 005329
    ,  .
Ilove-26-80 Bechtel Power Corporation
  ,
005329


==SUBJECT:==
==SUBJECT:==
MCAR 35 (issued 11/13/79)
MCAR 35 (issued 11/13/79)
Containment Internal Structures Coating INTERIM REPORT 2 DATE:          January 30, 1980 PROJECT:        Consumers Pcwcr Company Midland Plant Units 1 & 2 Bechtel Job 7220 Thic report updates project engineering's progress in evaluation and action regarding the failure of coatings on concrete, as applied by subcontractor J. L. Manta in the containment building, to maintain adhesion between successive layers of the coating system.
Containment Internal Structures Coating INTERIM REPORT 2 DATE:          January 30, 1980 PROJECT:        Consumers Pcwcr Company Midland Plant Units 1 & 2 Bechtel Job 7220 Thic report updates project engineering's progress in evaluation and action regarding the failure of coatings on concrete, as applied by subcontractor J. L. Manta in the containment building, to maintain adhesion between successive layers of the coating system.
The corrective actions identified in Interim Report 1 are now progressing with a program involving CPCo, Bechtel and
The corrective actions identified in Interim Report 1 are now progressing with a program involving CPCo, Bechtel and Manta. A short update of these programs follows:
* Manta. A short update of these programs follows:
(
(
: 1. . Quantify Extent of Physical Problem
: 1. . Quantify Extent of Physical Problem
Line 37: Line 32:
1952 22i coos 120      M4
1952 22i coos 120      M4


o
o 005329
      -
    .
  *              .
                                                    .
005329
: 3. Material Analysis Retained test samples of the subject coating batches used in containment are undergoing physical tect and analysis to reaffirm acceptability. In addition, the manufacturer's coating application procedures used for past work are to be reviewed and their applicability for use in future work evaluated.
: 3. Material Analysis Retained test samples of the subject coating batches used in containment are undergoing physical tect and analysis to reaffirm acceptability. In addition, the manufacturer's coating application procedures used for past work are to be reviewed and their applicability for use in future work evaluated.
: 4. Coating Acceptance Procedure A procedure is being developed to determine the accept-ability of repaired coatings and original coatings which did not require repair.
: 4. Coating Acceptance Procedure A procedure is being developed to determine the accept-ability of repaired coatings and original coatings which did not require repair.
The results of Items 1, 2 and 3 will be evaluated to deter-mine the extent and root cause of the subject coating failure.
The results of Items 1, 2 and 3 will be evaluated to deter-mine the extent and root cause of the subject coating failure.
Following this determination, additional corrective action l        steps will be taken as required to preclude recurrance and I        repair the problem coating. Steps taken in Item 4 will be used to provide final verification of acceptable adhesion of this coatings system.
Following this determination, additional corrective action l        steps will be taken as required to preclude recurrance and I        repair the problem coating. Steps taken in Item 4 will be used to provide final verification of acceptable adhesion of this coatings system.
,
The next report is scheduled for March 31, 1980.
The next report is scheduled for March 31, 1980.
!
Submitted by    .
Submitted by    .
                                                                 @M
                                                                 @M
Line 55: Line 43:
Appro ed by:    #    A
Appro ed by:    #    A
;
;
t
t Concurrence by:
                                                                        '
Concurrence by:
t I
t I
i i952 222
i i952 222
                                         .                                .}}
                                         .                                .}}

Revision as of 21:20, 1 February 2020

Second Interim Deficiency Rept Re Coating of Containment Internal Structures.Preliminary Procedure to Quantify Physical Problem Under Review.Test Samples Being Physically Tested.Next Rept by 800331
ML19260D781
Person / Time
Site: Midland
Issue date: 02/07/1980
From:
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML19260D777 List:
References
MCAR-35, NUDOCS 8002120357
Download: ML19260D781 (2)
v • d • e


Text

- Attachment to Ilove-26-80 Bechtel Power Corporation 005329

SUBJECT:

MCAR 35 (issued 11/13/79)

Containment Internal Structures Coating INTERIM REPORT 2 DATE: January 30, 1980 PROJECT: Consumers Pcwcr Company Midland Plant Units 1 & 2 Bechtel Job 7220 Thic report updates project engineering's progress in evaluation and action regarding the failure of coatings on concrete, as applied by subcontractor J. L. Manta in the containment building, to maintain adhesion between successive layers of the coating system.

The corrective actions identified in Interim Report 1 are now progressing with a program involving CPCo, Bechtel and Manta. A short update of these programs follows:

(

1. . Quantify Extent of Physical Problem

}

A preliminary procedure of mapping and adhesion testing is being reviewed and testing vill begin upon completion

, of this review.

2. Document Review A preliminary document review is in process. These records are being reviewed to determine batch numbers, application temperatures and time between coats. In addition, the application location for the above variables is being identified for correlation with the
mapping and adhesion testing from (1) above.

1952 22i coos 120 M4

o 005329

3. Material Analysis Retained test samples of the subject coating batches used in containment are undergoing physical tect and analysis to reaffirm acceptability. In addition, the manufacturer's coating application procedures used for past work are to be reviewed and their applicability for use in future work evaluated.
4. Coating Acceptance Procedure A procedure is being developed to determine the accept-ability of repaired coatings and original coatings which did not require repair.

The results of Items 1, 2 and 3 will be evaluated to deter-mine the extent and root cause of the subject coating failure.

Following this determination, additional corrective action l steps will be taken as required to preclude recurrance and I repair the problem coating. Steps taken in Item 4 will be used to provide final verification of acceptable adhesion of this coatings system.

The next report is scheduled for March 31, 1980.

Submitted by .

@M

/

Appro ed by: # A

t Concurrence by:

t I

i i952 222

. .

Retrieved from "https://kanterella.com/w/index.php?title=ML19260D781&oldid=2382909"