05000482/FIN-2008003-04
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Troubleshooting Activities Bypass Design Control for the Fuel Transfer System |
| Description | The inspectors identified a noncited violation of Technical Specification 5.4.1.a in which the licensee raised the winch load setpoint for its fuel transfer system to avoid trips without knowing the cause. Because of repeated trips of the fuel handling system winch during core reload, the load setpoints and slow speed zones were inappropriately and nonconservatively changed. When questioned by the inspector, the licensee was unable to produce modification documentation that justified these software changes. The licensee entered this issue into their corrective action program as Condition Reports 2008-0254 and 2008-0255 which included action to reset the setpoints. The finding was more than minor because it is associated with the human performance attribute of the barrier integrity cornerstone objective to provide reasonable assurance that physical design barriers (fuel cladding) protect the public from radionuclide releases caused by accidents or events. Specifically, this issue relates to the procedure adherence example of the human performance attribute because the design process was bypassed to mask fuel cart problems. The finding was of very low safety significance because the issue did not result in fuel handling errors that caused damage to fuel clad integrity ora dropped fuel assembly. The cause of the finding has human performance crosscutting aspects in the area associated with decision making. Specifically, the licensee did not ensure safety by making safety or risk-significant decisions by using a procedural or systematic process when faced with the unexpected and repeated fuel transfer cart winch trips [H.1 (a)] |
| Site: | Wolf Creek  |
|---|---|
| Report | IR 05000482/2008003 Section 1R20 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.2 |
| Inspectors (proximate) | K Clayton P Elkmann L Ellershaw S Cochrum C Long V Gaddy |
| CCA | H.13, Consistent Process |
| INPO aspect | DM.1 |
| ' | |
Finding - Wolf Creek - IR 05000482/2008003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Wolf Creek) @ 2008Q2
Self-Identified List (Wolf Creek)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||