ENS 43829

v t e ENS Event
02:44 Dec 7, 2007
Title	Unplanned Safety System Actuation And Contamination Event
Event Description	On 12/06/2007 at 2042 [CST] C-337 unit 5 cell 5 was being charged and placed on stream and had just gone above atmospheric pressure. At 2044 hours0.0237 days <br />0.568 hours <br />0.00338 weeks <br />7.77742e-4 months <br /> two PGLD (process gas leak detection) heads in the C-337 unit 5 cell 5 actuated and would not clear indicating a potential UF6 release. To stop the release the cell was immediately taken back below atmospheric pressure. Investigation revealed that a UF6 release had occurred causing the PGLD actuation. The amount of material released has not yet been determined. The PGLD heads are Q safety system components. At the time of the incident the cell was operating in a mode which required the system to be operational. This is being reported based on SAR 6.9 Table 1, J2 (unplanned actuation of a Q safety system) and 10 CFR 76.120 (c) (1) (i) (unplanned contamination event). The NRC Resident Inspector has been notified of this event. There was no release to the environment and no personnel contaminations reported.

ENS 43829 +/-
Where
Paducah Gaseous Diffusion Plant Paducah, Kentucky (NRC Region 2)
License number:	Gdp-1
Reporting

10 CFR 76.120(c)(1) Other Unspec Reqmnt
Time - Person (Reporting Time:+13.05 h0.544 days <br />0.0777 weeks <br />0.0179 months <br />)
Opened:	Billy Wallace 15:47 Dec 7, 2007
NRC Officer:	Howie Crouch
Last Updated:	Dec 7, 2007
43829 - NRC Website
v • d • e

v t e Emergency Notification System
Paducah Gaseous Diffusion Plant with Other Unspec Reqmnt, 10 CFR 76.120(c)(1)
WEEKMONTHYEAR2013-08-02T14:32:00 [Table view]
[ENS list for Paducah Gaseous Diffusion Plant]

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