05000250/FIN-2009003-06
From kanterella
Jump to navigation
Jump to search
Finding | |
---|---|
Title | Inadequate Evaluation of Damaged Rod Control Extension Results in High Risk Condition and Condition Yellow |
Description | A Self-revealing Finding was identified when the licensee did not manage maintenance activities adequately to identify and repair a damaged rod control drive component on Unit 3 prior to setting the reactor vessel closure head on the reactor vessel flange. As a result, the subsequently filled reactor coolant system had to be drained again to 2 feet below the reactor vessel flange (a high risk activity) placing the unit in the licensees risk condition Yellow for repairs. The licensee documented this in condition report (CR) 2009-10284.The finding was more than minor because it affected the Human Performance attribute of Initiating Events cornerstone and the licensee=s risk assessment failed to anticipate that the maintenance activity could result in another plant draining evolution with its inherent risk of an initiating event of loss of inventory or shutdown cooling. With appropriate mitigating equipment available, the finding screened to be of very low safety significance (Green). The finding affected the cross cutting area of Human Performance, Work Practices, Supervisory & Management Oversight (H.4(c)) because the licensee did not appropriately provide oversight of work activities, including contractors, such that nuclear safety is supported |
Site: | Turkey Point |
---|---|
Report | IR 05000250/2009003 Section 1R20 |
Date counted | Jun 30, 2009 (2009Q2) |
Type: | Finding: Green |
cornerstone | Initiating Events |
Identified by: | Self-revealing |
Inspection Procedure: | IP 71111.2 |
Inspectors (proximate) | J Uribe T Hoeg M Barillas J Stewart M Sykes |
CCA | H.2, Field Presence |
INPO aspect | LA.2 |
' | |
Finding - Turkey Point - IR 05000250/2009003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Turkey Point) @ 2009Q2
Self-Identified List (Turkey Point)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||