05000341/FIN-2014003-01
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Incorrect Application of TSSR 3.0.3 to Never-Performed Battery Surveillances |
| Description | The inspectors identified a finding of very low safety significance. Upon discovery that surveillance testing procedures for safety-related batteries had not fully satisfied the applicable Technical Specification Surveillance Requirements (TSSRs), the licensee incorrectly used the provision of TSSR 3.0.3 to not declare the applicable Limiting Condition for Operation (LCO) not met and enter the appropriate condition(s), as required by TSSR 3.0.1 and Technical Specification (TS) 3.0.2, without considering the distinction between a missed surveillance versus a never-performed surveillance. Because the licensee subsequently completed the battery surveillance satisfactorily and the required actions of TS 3.8.5 Condition were fortuitously met, no violation of TS 3.02 or TS 3.8.5 was identified. The licensee entered this performance deficiency into its corrective action program for evaluation and identification of appropriate corrective actions. The finding was of more than minor significance because a failure to correctly implement LCO and surveillance requirements has the potential to lead to a more significant safety concern if left uncorrected. Specifically, a failure to declare an LCO not met, enter the applicable condition(s), and follow the applicable actions could reasonably result in operations outside of established safety margins or analyses. The finding was determined to be of very low safety significance because adequate mitigation capability remained, and the issue did not involve a loss of inventory control. The issue also did not involve an actual loss of function of the direct current electrical power system because battery terminal connection resistance measurements were acceptable when subsequently performed. The inspectors determined this finding affected the cross-cutting area of human performance because a conservative bias in decision making was not demonstrated by the licensees assumption that TSSR 3.0.3 would apply to the never-performed surveillances (H.14). Prior to applying TSSR 3.0.3, the licensee did not appropriately consider the distinction between a late versus a never-performed surveillance and had not prepared a basis to conclude the surveillances had been adequately demonstrated outside of routine surveillances. The licensees position paper one month after the fact rationalized the assumption without providing objective quality evidence to support its conclusion. |
| Site: | Fermi  |
|---|---|
| Report | IR 05000341/2014003 Section 1R15 |
| Date counted | Jun 30, 2014 (2014Q2) |
| Type: | Finding: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | B Kemker J Bozga M Kunowski P Smagacz R Morris S Bell |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
| ' | |
Finding - Fermi - IR 05000341/2014003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Fermi) @ 2014Q2
Self-Identified List (Fermi)
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||