So these guys had environmentally unqualified nitrile elastomers in containment nuclear safety valve air actuators...then we know Peach Bottom and Vermont Yankee had grossly unqualified buna-n seals in their safety relief valve air actuators.
We have had a massive breakdown in the quality of components in the nuclear industry...this places in question the safety of any nuclear plant in the USA.
We have had a massive breakdown with enforcing environmental qualification of the safety components in all reactors by the utilities and the NRC!
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Power Reactor |
Event Number: 48806 |
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Facility: FORT CALHOUN Region: 4 State: NE Unit: [1] [ ] [ ] RX Type: (1) CE NRC Notified By: SCOTT MOECK HQ OPS Officer: VINCE KLCO |
Notification Date: 03/04/2013 Notification Time: 18:32 [ET] Event Date: 03/04/2013 Event Time: 14:00 [CST] Last Update Date: 03/04/2013 |
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Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(3)(ii)(B) - UNANALYZED CONDITION |
Person (Organization): RYAN LANTZ (R4DO) |
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Unit
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SCRAM Code
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RX CRIT
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Initial PWR
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Initial RX Mode
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Current PWR
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Current RX Mode
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|
1
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N
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N
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0
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Cold Shutdown
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0
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Cold Shutdown
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Event Text
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UNANALYZED CONDITION DUE TO MECHANICAL SEAL MATERIAL DESIGN "It has been determined that the mechanical seals used in two Low Pressure Safety Injection Pumps and three Containment Spray Pumps are made of a material that may not maintain the designed integrity of the systems under certain accident conditions. These seals have been installed since original plant construction. This issue was discovered by plant personnel while researching requirements for the replacement parts during scheduled outage activities." The licensee notified the NRC Resident Inspector. |
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