ML20085F436

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Forwards Piping Support Sys Review, in Response to .Deficiencies May Have Involved Nonuniform Application of Designated Criteria,Incomplete Review of Installed Sys & Incomplete Documentation & Followup
ML20085F436
Person / Time
Site: Palisades Entergy icon.png
Issue date: 06/24/1975
From: Sewell R
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20085F445 List:
References
NUDOCS 8308220106
Download: ML20085F436 (2)


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'J' k b General offices: 212 West M.chigan Avenue, Jackmor*, Mich*gan 49201 e Area Code S17 788 05S0 June 24, 1975 Mr. James G. Keppler Re: Docket 50-255 Region Director License DRP-20 Office of Inspection Enforcement Palisades Plant Region III A0 4-75 US Nuclear Regulatory Commission Pipe Restraints 799 Roosevelt Road Glen Ellyn, IL 60137

Dear Mr. Keppler:

By letter dated April 25, 1975, your staff requested that we provide a description of the scope and extent of the engineering evalu-ation of pipe hangers and restraints that was performed by our Palisades

( Plant Architect Engineer (A-E). This report is enclosed.

A number of deficiencies have been observed and corrected which apparently occurreri during initial construction and subsequent modification of the plant. These deficiencies may have involved non-uniform application of designated criteria, incomplete review of in-stalled systems, and incomplete documentation and follow-up prior to and after turnover. Since this design and construction work van per-formed, significant changes in our Construction Quality Assurance Services program have been instituted. Our Quality Assurance Services group has reviewed the seismic restraint deficiencies and has concluded that the present QA programs and procedures are adequate to detect the types of deficiencies observed, should they recur.

Some of the deficiencies may have been related to the start-up and hot functional testing program; however, since this program was con-ducted at the Palisades Plant, significant changes have been made. Our General Office plant start-up organization has reviewed the seismic restraint deficiencies with respect to their preoperational test procedure development program and has concluded that our current procedures are such that similar deficiencies are not likely to occur in the future.

A number of deficiencies could have been detected and corrected through a preventive maintenance program for pipe hangers and restraints.

We have begun the development of such a program, and plan to have it in r' effect by about August 1, 1975 O O O 5 D-P pop Y NSIC - 1 I

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/~s Mr. James G. K'V

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License DPR-20 June 24, 1975 It is possible that some of the deficiencies resulted from inadequate maintenance procedures. While ve have not been able to find any documentary evidence of this and consider it unlikely, we are cur-rently developing improvements to our present procedures and expect these improvements to be completed by about August 1,1975 Yours very truly, Ralph B. Sewell (Signed)

Ralph B. Sewell DAB /ds Nuclear Licensing Administrator CC: Division of Reactor Licensing O

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