ML19296D666
| ML19296D666 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 12/14/1979 |
| From: | Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 8003120726 | |
| Download: ML19296D666 (2) | |
Text
Ne-s PHILADELPHIA ELECTRIC COMPANY 2301 M ARKET STREET P.O. BOX 8699 PHILADELPHIA. PA.19101 (215) 841-4ooO December 1h, 1979 Re: Docket Nos.: 50-277
$0-278 Mr. Boyce H. Grier, Director Office of Inspection & Enforcement Region I United States Nuclear Regulatory Cc= mission 631 Park Avenue King of Prussia, PA 19ho6
Dear Mr. Grier:
In the meeting held at PECo. on October 5, 1979, and the subsequent telephone conversation between myself and Mr. E. C. McCabe of your office which you fomdized in your letter of October 24,1979, to S. L. Daltreff, we indicated that, we contemplated completing the installation of now hangere on Unit 3 by December 15,1979 Installation of these new hangers increases the safety factors from a present level of greater than 2 to safety factors greater than h or 5 as required. We now find that the completion date cannot be met.
This date was established prior to completion of system analysis and was based on on estimated scope of work.
Subsequent analysis indicated that the installation and replacement of certain hangers would have to be accomplished in a particular sequence to ensure that the existing levels of safety would not be compromised.
Further, adding to our difficulties, physical interferences were found in the field that necessitated review and modification to a number of hangers.
During the subsequent reviews by the Architect Engineer, revised loadings and revisions to some hangers and anchor drawings were made.
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8003120 72.G, 7y-m
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Mr.$oyce I. Grier, Director Page 2 December 114, 1979 We feel that this program is progressing as expeditiously as practicable. Based on current estimates and known design, we expect to complete this task by January 5, 1980.
If you desire any additional information, please feel free to contact us.
Very truly yours, A
I' NT M.
ooney rintendent erationDivision/ Nuclear