ML20136B339
| ML20136B339 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 01/16/1984 |
| From: | Lettieri V BROOKHAVEN NATIONAL LABORATORY |
| To: | Hunnicutt D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| Shared Package | |
| ML20136B196 | List:
|
| References | |
| FOIA-84-779 NUDOCS 8511200188 | |
| Download: ML20136B339 (2) | |
Text
--.
~
L/ G 3 ~ A -&
1
'l jjj, j,j j BROOKHAVEN NATIONAL LABORATORY
[] ] ~I l ASSOCIATED UNIVERSITIES, INC.
d s..
s Ucton. Long ts' enc. New York 11973 (516) 282' 4092 Decccment of Nue!ect Energy FTS 666' Janua ry 16, 1984 i
4 Doyle M. Hunnicutt U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011
Dear Doyle:
Attached are the first six (6) allegations concerning the protective coatings at Comanche Peak.
I would appreciate your forwarding these allecations to the utility and requesting a written response to be available for our review on January 30, 1984, during our site visit.
Yours truly, 1,
/'
Vincent Lettieri Plant Systems & Equipment Analysis Group VL/sm En c.
cc: R. Bari R. Hall F. Hawkins (fRC Reg. IV)
J. Higgins C. Johnson E. Johnson W. Kato J. Taylor T. Westerman 8511200188 851025 PDR FOIA GARDE 85-779 PDR s ' '6/
v
ALLEGATIONS CONCERNING COMAhCHE PEAK PROTECTIVE C0ATINGS 1.
Paragraph 4.3.1.2 of Procedure Number CCP 40 states " Imperial coatings may be applied in the following sequential order: #11S/1201/115/1201 or 115/1201/11/1201." Imperial letter dated May 8,1978, VBR-7697 to Mr.
Kelly Williams, second paragraph, states: "Altheagh the resultant systems
- 11S/1201/11S/1201 or #115/1201/11/1201 have not been qualification tes-ted, there is no reason to believe that they are not viable systems."
Thus these two systems have not been DBA qualified.
2.
Specific sequencing of coatings systems not required.
For ex-ample, NRC No. C83-01752 dated 6/23/83, Disposition section, first para-graph, states: " Table A2 in Appendix A of AS 31 specifies acceptable coat-ing systems, i.e., primer and final coat product identification and vendors."
It then goes on to say that full sequencing is not identified.
"This table does not identify full system sequencing or application para-neters." Does a system's sequencing change for a repair? Why? Has the repair sequence been DBA qualified?
3.
DCA, No.17,142, Rev. 2, allows Carboline 305 to be applied over another manufacturer's epoxy coating. Has this system been DBA qualified?
4 DCA, No.12, 374, Rev.1, allows inorganic zinc primer'(Carboline CZ-11 ?)
to be top coated by Imperial 1201. Has this system been DBA qualified?
5.
Procedure No. CCP-30A, Rev. 2, page 2 of 13, paragraph 1.3.1 allows the application of Carboline 305 over the primer Dimetcote 6 by Ameron. Has this system been DBA qualified?
6.
Procedure No. CCP-40, Rev. 5, page 5 of 13, paragraph 4.1.1.3 states: "Re-pair of embedded foreign objects such as nails, rebar chairs, bolts, wood, or plastic shall be repaired per the following guidelines before ap-plication of NUTECH 11S surfacer." Have these systems been DBA qualified?
,,