ML19208D165

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Status Rept Re Potential Delamination of Carbozinc 11/Phenoline Coating Sys on Polar Cranes.Blasting of Prime Coat & Repriming Will Be Done When safety-related Work Resumes.Final Rept Will Be Filed Upon Work Completion
ML19208D165
Person / Time
Site: Marble Hill
Issue date: 08/30/1979
From: Shields S
PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19208D160 List:
References
REF-PT21-79-146-001 NUDOCS 7909280069
Download: ML19208D165 (2)
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Text

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i l' , Ausust 30. 1979 S..W.$hields u.f.i Vice President . Electric System Mr. James G. Keppler, Director U. S. Nuclear Regulatory Commission Docket Nos.: STN 50-546 Region III STN 50-547 799 Roosevelt Road Construction Permit Nos.: Glen Ellyn, Illinois 60137 CPPR-170 

                                                                                                        -                                                                      CPPR-171 Marble Hill Nuclear Generating Station Units 1 & 2

Dear Mr. Keppler:

Pursuant to a telephone conversation of August 22, 1979 with your Mr. E. R. Schweibinz, Public Service Company of Indiana, Inc. (PSI) wishes to inform you on the present status of the previously reported 10CFR21 incident re-garding the prime coating on PSI's polar crane . A potential defect in the applied Carbo-Zine 11 primer on the containment building polar cranes, which are being supplied by the Harnischfeger Cor- ' poration, was discovered by PSI. PSI then requested our architect-engineer to evaluate the surface fin $sh of the Carbo-Zine 11 primer. Our architect-engineer subsequently requested the assistance of the coating material manufacturer, the Carboline Company. Carboline' indicated-that the Carbo-Zinc.1L, application did;not meet .their. . recommendations and, although the adhesion of 'this coating;was adequate, the notistence of . dry spray and overspray created doubtf that the . applied -fil.a 

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Potential delar.ination df th'e ' Carbo-Zinh 11/Phenoline coating . system could 

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Mr. James G. Keppler, tirector . August 30, 1979 PUBUC 

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The cranes will be blasted to remove the present prime coat of Carbo-Zinc 11 and then reprimed. This work will be accomplished at the construction site by the field coating work 'contractor. . In our August'7, 1979 letter, PSI stated that the above work would be completed by August 30, 1979 for the Unit I crane. However, due to the recent suspensica of all safety-related work at the Marble Hill site, PSI was unable to meet this date. Such work will be performed once safety-related work is resumed at t.he Marble Hill site. As stated previously, the above was evaluated as a 10CFR21 reportable in-cident. This letter also meets the requirements for an interim report as specified in 10CFR50.55(e)(3) . A final report will be filed when the re-pair work is completed. Sincerely, 

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S. W. Shields PAB:jb cc: Director of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 E. R. Schweibinz, P.E. . 

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