05000255/FIN-2009002-01
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Finding | |
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Title | Inoperablity if HPSI Valve due to Foreign Material |
Description | A finding of very low safety significance and associated NCV of TS 5.4, Procedures, was self-revealed on February 7, 2009, when High Pressure Safety Injection (HPSI) system loop injection valve MO-3064 failed to open during routine operations. Specifically, the licensee failed to have adequate procedures in place to ensure that foreign material was not in the breaker following maintenance. The licensee entered the issue into their corrective action program and determined that a strand of foreign material from a cleaning pad became lodged in an auxiliary contact of the valves breaker. This prevented the motor from operating to open the valve. The licensee removed the foreign material and restored the valve to an operable status. The inadequacy of maintenance procedures in addressing foreign material exclusion (FME) control was greater than minor because it affected the Equipment Performance attribute of the Mitigating Systems cornerstone, in that the foreign material adversely affected the availability, reliability, and capability of a system that responds to initiating events to prevent undesirable consequences. Because the safety function of one train of the HPSI system was not lost for greater than the TS allowed outage time, the finding screened as Green, or very low safety significance. The finding had an associated cross-cutting aspect in the area of human performance, work control, ability to appropriately plan work activities (H.3.(a)) |
Site: | Palisades ![]() |
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Report | IR 05000255/2009002 Section 4OA2 |
Date counted | Mar 31, 2009 (2009Q1) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Self-revealing |
Inspection Procedure: | IP 71152 |
Inspectors (proximate) | N Valos J Ellegood J Giessner T Taylor |
CCA | H.5, Work Management |
INPO aspect | WP.1 |
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Finding - Palisades - IR 05000255/2009002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palisades) @ 2009Q1
Self-Identified List (Palisades)
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