05000387/FIN-2013002-06
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | On April 27, 2012, PPL determined that its staff did not enter a Unit 1 TS 3.6.4.2 LCO when the primary containment nitrogen makeup line spectacle flange was rotated in the open position in Mode 1, 2, and 3. A review of Unit 1 and Unit 2 control room logs for the past three years revealed that on two occasions in 2011, the Unit 1 spectacle flange was open for greater than the combined completion times for TS 3.6.4.2. As a result, these two events were reportable as a condition prohibited by TSs. PPL identified that the cause of the event was less than adequate guidance specified in Operations procedures and status control mechanisms for controlling Secondary Containment. The issue was determined to be a violation of TS 5.4.1.a, Procedures, which requires that written procedures be established, implemented, and maintained covering the applicable procedures recommended in Regulatory Guide (RG) 1.33, Revision 2, Appendix A. Section 4 requires instructions for a list of BWR systems that includes, particularly, 4.j.(3) Inerting and deinerting of containment. Contrary to this, PPL procedure OP-173-001, Containment Atmosphere Control System, Revision 39, did not identify TS 3.6.4.2 as applicable and the TS was not entered when the nitrogen spectacle flange was rotated open. This also resulted in a violation of TS 3.6.4.2, Secondary Containment Isolation Valves, when the spectacle flange was open longer than allowed. The issue was more than minor since it was similar to example 4.l of IMC 0612, Appendix E. It also was more than minor since it affected procedure quality attribute of the Barrier Integrity cornerstone and its objective to provide reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. The issue screened to Green using IMC 0609 Appendix B since the issue did not represent an actual open pathway in the physical integrity of the reactor containment or involve an actual reduction in reactor containment hydrogen igniter function. This issue was entered in PPLs CAP as CR 1548804. |
| Site: | Susquehanna  |
|---|---|
| Report | IR 05000387/2013002 Section 4OA7 |
| Date counted | Mar 31, 2013 (2013Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | P Kaufman M Gray F Arner P Finney J Ayala J Greives C Lally |
| Violation of: | Technical Specification - Procedures Technical Specification |
| INPO aspect | |
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Finding - Susquehanna - IR 05000387/2013002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Susquehanna) @ 2013Q1
Self-Identified List (Susquehanna)
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