05000483/FIN-2011007-01
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Finding | |
|---|---|
| Title | Failure to Follow Procedure in the Establishment of a Turbine-Driven Auxiliary Feedwater Pump Postmaintenance Test Procedure |
| Description | The inspectors identified a noncited violation of Technical Specification 5.4.1.a involving a failure to follow procedures in the development of Procedure OTS-FC-0006, TDAFW Pump Post-Maintenance Test Run on Aux Steam. Specifically, the licensee failed to incorporate turbine-driven auxiliary feedwater pump vendor manual precautions, limitations, and technical information in Procedure OTS-FC-0006, which resulted in the axial unloading, rolling element ball skidding, and subsequent degradation to the turbine-driven auxiliary feedwater pump inner outboard thrust bearing. Following discovery during planned maintenance and as immediate corrective actions, the licensee declared the turbine-driven auxiliary feedwater pump inoperable, entered the applicable Technical Specification Limiting Condition for Operation, replaced the oil and bearings, restored the pump to operability, and initiated Callaway Action Request 201101042 to perform a root cause analysis. This finding is more than minor because it affected the equipment performance attribute of the Mitigating Systems Cornerstone and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The finding was evaluated using Manual Chapter 0609.04, Phase 1 - Initial Screening and Characterization of Findings, and was determined to be of very low safety significance (Green) because there was not a design or qualification deficiency that resulted in a loss of operability or functionality, it did not create a loss of system safety function of a single train for greater than the technical specification allowed outage time, it did not represent an actual loss of risk significant equipment, and it did not affect seismic, flooding, or severe weather initiating events. This finding has a cross-cutting aspect in the area of human performance associated with the work practices component because the licensee failed to ensure procedural adherence in the establishment of the turbine-driven auxiliary feedwater pump postmaintenance test procedure. |
| Site: | Callaway  |
|---|---|
| Report | IR 05000483/2011007 Section 4OA5 |
| Date counted | Jun 30, 2011 (2011Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 93812 |
| Inspectors (proximate) | G Miller J Polickoski M Runyan M Chambers L Micewski D Dumbacher |
| Violation of: | Technical Specification |
| CCA | H.8, Procedure Adherence |
| INPO aspect | WP.4 |
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Finding - Callaway - IR 05000483/2011007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Callaway) @ 2011Q2
Self-Identified List (Callaway)
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