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On October 15, 2001, Turkey Point Unit 3 w … On October 15, 2001, Turkey Point Unit 3 was in Mode 6 (Refueling) with core reload in progress.</br></br>Contrary to Technical Specification (TS) requirements, fuel movement continued without an OPERABLE boration flow path as defined by TS 3.1.2.1. The condition was discovered on October 16, 2001. Although a boric acid transfer pump was OPERABLE and capable of supplying borated water to the Reactor Coolant System through an idle charging pump, the idle charging pump was not capable of being powered by an OPERABLE emergency power source, in verbatim compliance with TS 3.1.2.1. The emergency power source for the 3A Charging Pump is the 3A Emergency Diesel Generator (EDG). The 3A EDG was paralleled to the grid, rendering it inoperable.</br></br>The root causes of this event were inadequate procedures and misinterpretation of TS 3.1.2.1.</br></br>Because the emergency power source was available (even though inoperable), the safety significance and risk significance of the event were very low.</br></br>Corrective actions include revision of procedures, counseling of personnel involved, and retraining of operating personnel and other non-licensed plant staff.sonnel and other non-licensed plant staff. +
On October 15, 2001, Turkey Point Unit 3 w … On October 15, 2001, Turkey Point Unit 3 was in Mode 6 (Refueling) with core reload in progress.</br></br>Contrary to Technical Specification (TS) requirements, fuel movement continued without an OPERABLE boration flow path as defined by TS 3.1.2.1. The condition was discovered on October 16, 2001. Although a boric acid transfer pump was OPERABLE and capable of supplying borated water to the Reactor Coolant System through an idle charging pump, the idle charging pump was not capable of being powered by an OPERABLE emergency power source, in verbatim compliance with TS 3.1.2.1. The emergency power source for the 3A Charging Pump is the 3A Emergency Diesel Generator (EDG). The 3A EDG was paralleled to the grid, rendering it inoperable.</br></br>The root causes of this event were inadequate procedures and misinterpretation of TS 3.1.2.1.</br></br>Because the emergency power source was available (even though inoperable), the safety significance and risk significance of the event were very low.</br></br>Corrective actions include revision of procedures, counseling of personnel involved, and retraining of operating personnel and other non-licensed plant staff.sonnel and other non-licensed plant staff. +
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NUREG-1431 + and NUREG-0452 +
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