05000305/FIN-2012002-02
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Finding | |
|---|---|
| Title | Potential Mobile Crane Heavy Load Risk Modeling Error |
| Description | During plant tours, the inspectors observed the licensees preparations for a heavy lift of circulating water pump motor B from the SW screen house through the screen house roof hatch to a motor stand outside. The inspectors had previously identified during daily plant status activities that EDG train A was tagged out for maintenance; and during discussions with the maintenance personnel performing the motor lift, found that the load path for the 44,000 lb motor went over both buried cables for the SW pumps train B, which were a needed support system for EDG train B. The inspectors questioned the licensee about the load path and found that the licensee had not recognized the location of the underground cables during the planning phase of the load lift, and had not evaluated a load drop over the cables and what affect the drop would have on the cables. The licensee suspended the lift until the next day, when EDG train A was operable and the licensee had an opportunity to perform a risk assessment for the heavy load travelling over the SW cables. The inspectors reviewed the risk assessment for the heavy lift and questioned whether the probability used for a load drop was conservative. At the conclusion of the inspection period, the inspectors needed additional information to determine if a performance deficiency occurred. As a result, this item was considered unresolved |
| Site: | Kewaunee  |
|---|---|
| Report | IR 05000305/2012002 Section 1R13 |
| Date counted | Mar 31, 2012 (2012Q1) |
| Type: | URI: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.13 |
| Inspectors (proximate) | K Riemer D Szwarc R Krsek K Barclay V Myers M Ziolkowskid Mcneilk Riemer R Krsek K Barclay A Shaikh |
| INPO aspect | |
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Finding - Kewaunee - IR 05000305/2012002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Kewaunee) @ 2012Q1
Self-Identified List (Kewaunee)
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