05000250/FIN-2014003-02
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Finding | |
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| Title | |
| Description | Technical Specification (TS) 3.4.6.2 limiting condition for operation (LCO) required that primary coolant operational leakage shall be limited to No Pressure Boundary Leakage when in Modes 1 through 4. The action statement of TS 3.4.6.2 required that the plant be placed in hot standby (Mode 3) within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in cold shutdown (Mode 5) within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Although the beginning time of the pressure boundary leakage from the number 11 pressurizer heater sleeve could not be precisely determined, the inspectors concluded that the leakage had reasonably existed during the previous Unit 3 operating cycle for greater than the six hour TS action statement time limit to place Unit 3 in Mode 3. Therefore, contrary to the above, during the previous operating cycle which ended on March 17, 2014, Unit 3 operated in Mode 1 and was not placed in Mode 3 within six hours with primary coolant pressure boundary leakage from the number 11 pressurizer heater sleeve. The inspectors concluded that the violation would normally be characterized as Severity Level IV based on its very low safety significance. There had not been any perceptible changes in containment parameters (i.e., radiation levels, humidity or floor drain sump levels) to indicate that a leak existed. The inspectors reviewed the root cause analysis of the event and concluded that the pressure boundary leakage could not have been avoided or otherwise detected by the licensees quality assurance program or other related control measures prior to the licensees discovery of the condition on March 17, 2014. As discussed in Section 2.2.4.d of the Enforcement Policy, a violation involving no performance deficiency is considered an exception to using only the operating reactor assessment program. Therefore, in consultation with the Office of Enforcement, the NRC has concluded that the exercise of enforcement discretion is warranted in accordance with Section 3.5 of the Enforcement Policy, because the violation resulted from matters not within the licensees control. Accordingly, this violation will not be documented or considered in the NRCs assessment process, but has been assigned an Enforcement Action number, EA-14- 124, to document the granting of enforcement discretion. This issue is documented in the licensees CAP as AR 1949021. Corrective action involved a half-nozzle repair of heater sleeve 11 which relocated the reactor coolant system pressure boundary to the outside of the pressurizer at the heater sleeve penetration, a visual inspection of the remaining 77 heaters in the Unit 3 pressurizer to ensure no other heater sleeve penetration leaks, and a visual inspection of the half-nozzle repair with Unit 3 at normal operating pressure and normal operating temperature. The LER is closed. |
| Site: | Turkey Point  |
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| Report | IR 05000250/2014003 Section 4OA3 |
| Date counted | Jun 30, 2014 (2014Q2) |
| Type: | Violation: Severity level Enforcement Discretion |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | A Butcavage J Munday M Endress R Williams T Hoeg |
| Violation of: | Technical Specification Technical Specification - Procedures |
| INPO aspect | |
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Finding - Turkey Point - IR 05000250/2014003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Turkey Point) @ 2014Q2
Self-Identified List (Turkey Point)
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