ML19262B921
| ML19262B921 | |
| Person / Time | |
|---|---|
| Site: | La Crosse File:Dairyland Power Cooperative icon.png |
| Issue date: | 11/18/1979 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19262B920 | List: |
| References | |
| 50-409-79-18, NUDOCS 8001170072 | |
| Download: ML19262B921 (1) | |
Text
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r Appendix A NOTICE OF "IOLATION Dairyland Power Cooperative Docket No. 50-409 Based on the investigation conducted on September 11 and 12, 1979, it appears that certain of your activities were in noncompliance with NRC requirements as noted below. These items are infractions.
1.
Technical Specification 4.2.6, Safety Instrumentation, and 4.0.2.2, Limiting Safety System Settings, Tables 1 and 4.0.2.2.1-1 and Figure 4.0.2.2.1-1 require the Reactor Coolant Flowrate low trip setting to be in operation and set at equal to or greater than 30% of rated forced circulation flow during operations.
LACBWR Operating Manual, Vol. I, Integrated Plant Operations, Plant Startup,Section II, requires these circuits to be energized during rea: tor startup.
Contrary to the above the reactor was taken critical on September 7, 1979, at 2:00 p.m. with the low flow safety circiits in bypass, and they remained bypassed for six successive shift changes before being discovered and corrected.
2.
10 CFR 50 Appendix B, Criterion XVI, requires, in part, that measures shall be established to assure that conditions adverse to quality such as failures, malfunctions, deficiencies are promptly identified and corrected.
. measures shall assure that the cause of the condition is determined and corrective action taken to preclude repetition.
LACBWR Administrative Control Procedure 17.1, Incident Reports, requires the timely reporting and documentation of all plant incidents and includes the formal review of causes and corrective actions, both immediate to safety recover and long term to prevent recurrence.
Contrary to the above, timely formal reviews and documentation of Incident Report, DPC 78-31, concerning a bypassed safety circuit were not completed for seven months. The incident was not brought to the attention of other operating personnel and corrective action was insufficient to prevent recurrence.
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