ENS 42451: Difference between revisions

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| event date = 03/29/2006 00:01 PST
| event date = 03/29/2006 00:01 PST
| last update date = 05/30/2006
| last update date = 05/30/2006
| title = Unit 3 Shutdown Due To Potential Safety Injection Tank Gasket Issue
| title = Unit 3 Shutdown Due to Potential Safety Injection Tank Gasket Issue
| event text = On March 27, 2006, with Unit 2 in Mode 4 while starting up from a refueling outage, [Southern California Edison (SCE)] discovered that the gasket used to seal the manway cover for Safety Injection Tank (SIT) T-008 had become partially dislodged.  The gasket is a 'flexitalic' type gasket which consists of a long section of crushable wire that is coiled and compressed between the manway cover and the safety injection tank flange.  For SIT T-008, the flexitalic gasket had uncoiled and extended down into the SIT and prevented SIT outlet check valve MU040 from fully sealing in the closed position.  On March 28, SCE inspected the remaining three SITs (SITs # 007, 009 and 010) and found the flexitalic gaskets degraded but intact and not interfering with other components.
| event text = On March 27, 2006, with Unit 2 in Mode 4 while starting up from a refueling outage, [Southern California Edison (SCE)] discovered that the gasket used to seal the manway cover for Safety Injection Tank (SIT) T-008 had become partially dislodged.  The gasket is a 'flexitalic' type gasket which consists of a long section of crushable wire that is coiled and compressed between the manway cover and the safety injection tank flange.  For SIT T-008, the flexitalic gasket had uncoiled and extended down into the SIT and prevented SIT outlet check valve MU040 from fully sealing in the closed position.  On March 28, SCE inspected the remaining three SITs (SITs # 007, 009 and 010) and found the flexitalic gaskets degraded but intact and not interfering with other components.
    
    

Latest revision as of 22:18, 1 March 2018

ENS 42451 +/- *RETRACTED*
Where
San Onofre Southern California Edison icon.png
California (NRC Region 4)
Reporting
10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown
Time - Person (Reporting Time:+-1.45 h-0.0604 days <br />-0.00863 weeks <br />-0.00199 months <br />)
Opened: Julie Holt
06:34 Mar 29, 2006
NRC Officer: Pete Snyder
Last Updated: May 30, 2006
42451 - NRC Website
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