ML19290B839

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Responds to IE Bulletin 79-14 Re Seismic Analysis for safety-related Piping Sys.Requested Insp Cannot Be Carried Out as Piping Erection Not Complete on Any safety-related Sys
ML19290B839
Person / Time
Site: Millstone Dominion icon.png
Issue date: 11/06/1979
From: Counsil W, Fee W
NORTHEAST NUCLEAR ENERGY CO.
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
IEB-79-14, NUDOCS 7912140227
Download: ML19290B839 (2)


Text

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November 6, 1979 United States Nuclear Regulatory Commission Office of Inspection and Enforcement Region I 631 Park Avenue King of Prussia, Pennsylvania 19406 ATTN: Mr. B. H. Grier, Director Docket No. 50-423 AEC-MP3-196 Gentlemen:

SUBJECT:

Millstone Unit No. 3 I.E. Bulletin No. 79-14

References:

(1) Letter B.H. Grier to W.G. Counsil da'ted July 2, 1979.

(2) Supplement Letter B.H. Grier to W.G. Counsil dated August 15, 1979.

References (1) and (2) transmitted the subject Bulletin to Northeast Nuclear Energy Company requesting appropriate action. As a holder of a Construction Permit, the Applicant will only respond to Items 2 and 3 of the subject Bulletin and Supplement.

Items 2 and 3 require the Applicant to inspect all safety-related systems to confirm that the as-built pipe and supports conform to the seismic analysis.

At the current time, piping erection has not been completed on any safety-related system in any building. Therefore at this time the requested inspecticn cannot be carried out. Furthermore, it is the Applicant's position that the Architect Engineers Quality Assurance and Control Manual for ASME III satisfactorily describes a site inspection program to confirm that the as-built condition of safety-related pipes and pipe supports at construction completion conform to the design documents. Using appropriate control documents, which include design drawings, erection and design specifications, manufacturer 1574 021 7912140 S'7

drawings and ASME control isometrics, field quality control personnel will verify design conformance for all safety-related systems.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY v

William G. Counsil Vice President Nuclear Engineering & Operations W

By: W. F. Fee Executive Vice President cc: Nuclear Regulatory Commission Office of Inspection and Enforcement Division of Reactor Operations Inspection Washington, D.C. 20555 1574 022