ENS 43963: Difference between revisions

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| event date = 02/05/2008 18:45 EST
| event date = 02/05/2008 18:45 EST
| last update date = 02/05/2008
| last update date = 02/05/2008
| title = Irradiated Fuel Movement Performed With A Required Accident Mitigation/Radiation Release System Bypassed
| title = Irradiated Fuel Movement Performed with a Required Accident Mitigation/Radiation Release System Bypassed
| event text = On February 5, 2008 EST at 1845 hours it was discovered that irradiated fuel moves had been performed during the previous shift with both Unit 1 and Unit 2 refuel floor high exhaust radiation monitors bypassed. The condition affected both Susquehanna Units. The radiation monitors are required to be operable for conditions noted in footnotes (a) and (b) in Technical Specification Tables 3.3.6.2-1 and 3.3.7.1-1 (i.e. operations with a potential for draining the reactor vessel, and during CORE ALTERATIONS and during movement of irradiated fuel assemblies in the secondary containment). The function of these instruments is to initiate systems that limit fission product release during and following certain postulated fuel handling accidents and to minimize the consequences of radioactive material in the control room environment.
| event text = On February 5, 2008 EST at 1845 hours it was discovered that irradiated fuel moves had been performed during the previous shift with both Unit 1 and Unit 2 refuel floor high exhaust radiation monitors bypassed. The condition affected both Susquehanna Units. The radiation monitors are required to be operable for conditions noted in footnotes (a) and (b) in Technical Specification Tables 3.3.6.2-1 and 3.3.7.1-1 (i.e. operations with a potential for draining the reactor vessel, and during CORE ALTERATIONS and during movement of irradiated fuel assemblies in the secondary containment). The function of these instruments is to initiate systems that limit fission product release during and following certain postulated fuel handling accidents and to minimize the consequences of radioactive material in the control room environment.
No movement of irradiated fuel assemblies was in progress when the issue was discovered. The event has been determined to be reportable within 8 hours under 10 CFR 50.72(b)(3)(v)(C) and 10 CFR 50.72(b)(3)(v)(D).
No movement of irradiated fuel assemblies was in progress when the issue was discovered. The event has been determined to be reportable within 8 hours under 10 CFR 50.72(b)(3)(v)(C) and 10 CFR 50.72(b)(3)(v)(D).

Latest revision as of 22:15, 1 March 2018

ENS 43963 +/-
Where
Susquehanna Talen Energy icon.png
Pennsylvania (NRC Region 1)
Reporting
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Time - Person (Reporting Time:+-2.63 h-0.11 days <br />-0.0157 weeks <br />-0.0036 months <br />)
Opened: Todd Creasy
21:07 Feb 5, 2008
NRC Officer: Howie Crouch
Last Updated: Feb 5, 2008
43963 - NRC Website
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