ML19309F643
| ML19309F643 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 01/18/1980 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19309F629 | List: |
| References | |
| 50-269-79-37, 50-270-79-34, 50-287-79-37, NUDOCS 8004300237 | |
| Download: ML19309F643 (1) | |
Text
f-80043 00 2.3 }
O APPENDIX A NOTICE OF VIOLATION Duke Power Company License No. DPR-55 Oconee Unit 3 Based on the NPC inspection November 11, 15, and 16, 1979, certain of your acti-vities were apparently not conducted in full complimnce with NRC requirements as indicated below. These items have been categorized as described in correspondence to you dated December 31, 1974.
A.
As required by Technical Specification 6.4.1.c, the station shall be operated and maintained in accordance with approved procedures. Written procedures with appropriate check-off lists and instructions shall be provided for actions taken to correct specific and foreseen potential malfunctions of systems or components involving nuclear safety and radiation levels, including responses to alarms, suspected primary system leaks and abnormal reactivity changes.
Contrary to the above, adequate procedures did not exist to guide the operator properly during the loss of most control board indications, which occurred on November 10, 1979, as a result of loss of the KI Inverter power supply for the Integrated Control System and most control board indications.
Procedures were also inadequate to guide the operator during recovery from
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this event in that maximum allowable Reactor Coolant System cooldown rates were exceeded.
This is an Infraction.
B.
As required by Technical Specification 3.1.2.1, Oconee Unit 3 Reactor Coolant System cooldown rates shall be limited in accordance with Tigure 3.1.2-2.c.
This figure specifies that, the maximum cooldown rate betwer:n 532 F and 432*F will be less than or equal to 100'F pe-hour.
(
Contrary to the above, during recovery from the transien'. event on November 10, 1979, the Unit 3 Reactor Coolant System was cooled dova approximately 140'F, within thirty minutes, from an indicated 560*F to an #.ndicated 420*F.
This is an Infraction.
,k 6
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