05000498/FIN-2016001-02
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Finding | |
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| Title | Licensee-Identified Violation |
| Description | Technical Specification 6.8.1.a states, in part, written procedures shall be established, implemented, and maintained covering applicable procedures recommended in Appendix A of Regulatory Guide 1.33, Revision 2, February 1978. Section 3.a of appendix A to Regulatory Guide 1.33, Revision 2, requires procedures for the startup, operation, and shutdown or the RCS, and Section 9.c requires procedures for repair or replacement of major equipment that is expected to be repaired or replaced during the life of the plant. Contrary to the above, the licensee failed to have procedures established for the operation of the RCS and for the repair of major equipment that is expected to be repaired during the life of the plant. Specifically, on November 2, 2015, without procedural guidance, the Unit 1 reactor coolant pump 1C was recoupled with the RCS at approximately 66 feet in the cavity. Coupling the pump to the motor in this condition introduced unfiltered RCS water into the seal cartridge area. On November 11, 2015, operations placed reactor coolant pump 1C into service and immediately noted a higher than normal leak off from the number 1 seal. Several attempts were made to adjust the seal and reduce the leakage, but on November 13, 2015, the decision was made to depressurize and cool down the RCS to repair the seal. The licensee discovered that foreign material from the unfiltered RCS had contaminated the seal. The licensee determined that this occurred during pump recoupling while at 66 feet in the reactor cavity. This finding has a very low safety significance (Green) because the finding did not result in an RCS leak rate that exceeded that of a small LOCA or have likely affected other systems that are used to mitigate a LOCA resulting in a total loss of their function. This issue was entered into the licensees corrective action program as Condition Report 15-24818. |
| Site: | South Texas  |
|---|---|
| Report | IR 05000498/2016001 Section 4OA7 |
| Date counted | Mar 31, 2016 (2016Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | A Sanchez B Tripathi E Simpson L Brookhart N Hernandez N Taylor |
| Violation of: | Technical Specification Technical Specification - Procedures |
| INPO aspect | |
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Finding - South Texas - IR 05000498/2016001 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (South Texas) @ 2016Q1
Self-Identified List (South Texas)
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