ML20023C570
| ML20023C570 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 05/06/1983 |
| From: | Jackie Cook CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, 22186, 82-08-#4, 82-8-#4, NUDOCS 8305170440 | |
| Download: ML20023C570 (2) | |
Text
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@ Consumers Power James W Cook 0
Vice President - Projects, Engineering and Construction General offices: 1945 West Parnali Road, Jackson, MI 49201 e (517) 788-o453 May 6, 1983 82-08 #4 Mr J G Keppler, Regional Administrator US Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60237 MIDLAND NUCLEAR C0 GENERATION PLANT DOCKET NOS 50-329 AND 50-330 UPGRADE OF B&W NON-SEISMIC TRANSMITTERS MOUNTING BRACKETS FILE:
0.4.9.64 SERIAL: 22186
References:
J W Cook letters to J G Keppler, Same
Subject:
(1) Serial 17538, dated July 2, 1982 (2) Serial 17591, dated August 31, 1982 (3) Serial 19095, dated November 15, 1982 This letter, as were references 1, 2, and 3, is an interim 10 CFR 50.55(e) report concerning the installation of B&W-supplici, non-seismically qualified transmitter mounting brackets for transmitters forming part of the reactor coolant pressure boundary. The assumption of multiple failures of these brackets and their corresponding transmitters during a seismic event could result in an unanalyzed plant condition. As explained in reference 2, the resolution of this concern is to be accomplished by replacing the non-seismically qualified mounting brackets with seismically qualified mounting brackets and demonstrating that the structural integrity of the existing transmitters mounted on the replacement brackets is not compromised during a seismic event.
CPCo has received a draft field change authorization (FCA) from B&W describing the seismic qualification of the existing transmitters with the replacement brackets. To facilitate Bechtel comments, B&W has extended the submittal date for the final FCA until July 15, 1983. Our present schedule requires the qualified replacement brackets to be shipped to the site and installed with transmitters prior to initial fuel load.
Replacement bracket qualification will be documented by closeout of Consumers Power Company NCR M01-9-2-065.
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Serial 22186 82-08 #4 Another report, either interim or final, will be sent on or before August 31, 1983.
WRB/WRS/1r CC: Document Control Desk, NRC Washington, DC RJCook, NRC Resident Inspector Midland Nuclear Plant CBechhoefer, ASLB Panel RSDecker, ASLB Panel FPCowan, ASLB Panel JHarbour, ASLB Panel AS&L Appeal Panel MMCherry, Esq MSinclair BStamiris CRStephens, USNRC WDPaton, Esq, USNRC FJKelley, Esq, Attorney General SHFreeman, Esq, Asst Attorney General WHMarshall GJMerritt, Esq, TNK&J INPO Records Center l
OC0483-0038A-MP01 l
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