ML19347C791
| ML19347C791 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 04/18/1975 |
| From: | Sewell R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8102170164 | |
| Download: ML19347C791 (1) | |
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General Offices: 212 West Michigan Avenue. Jackson, Michigan 49201. Area Code 617788 0550
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- s April 18, 1975 Division of Reactor Licensing Re: Docket 50-155 US Nuclear Regulatory Commission License DPR-6 Washington, DC 20555 Big Rock Point Plant Gentlemen:
By letter dated January 27, 1975, Consumers Power Company submitted Abnomal Occurrence Report A0-1-75 This report described corrective action that was being taken with regard to the discovery that certain required instrumentation might not have operated properly under the Loss Of Coolant Accident (LOCA) conditions. In addition, the report stated that periodic reports would be submitted at approxi-mately two-week intervals to update that report.
Periodic reports were
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submitted February 14, 1975, February 28, 1975, March 14, 1975 and March 27, 1975 By letter dated April 1,1975, the US Nuclear Regulatory Com-mission transmitted " DETERMINATION OF REQUEST FOR EXTENSION OF TDE FOR SUBMITTAL OF EVALUATIONS REQUIRED BY ACCEPTANCE CRI'ERIA FOR DERGENCY CORE COOLING SYSTDiS." This Determination allowed Consumers Power Company an extension of time for submission of the required ECCS evalu-ations for the Big Rock Point Plant. In addition, the Detemination noted that the plant was presently shut down to evaluate and test cer-tain ECCS instruments which are required to function in a LOCA environ-ment and required that the results of these tests and analysis be submitted to and reviewed and approved by the NRC prior to start-up from the present shutdown.
Consumers Power Company initially intended to keep the IBC infomed as to the results of investigations and corrective action taken by means of the periodic letters submitted to the NRC at approxi-mately two-week intervals. Since you have now indicated a desire to approve our actions prior to returning the plant to service, we are in the process of developing a comprehensive report on the investigations performed and corrective actions taken.
We, therefore, are discontinu-ing the submittal of the periodic reports. We hope to be able to submit the comprehensive report in about two weeks.
Yours very truly, RBS/pb Ralph B. Sewell b 14 )-
I Nuclear Licensing Administrator
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