ENS 40492

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v t e ENS Event
15:41 Jan 30, 2004
Title	Safety Equipment Failure
Event Description	At 0941 CST on 1/30/04, the Plant Shift Superintendent (PSS) was notified that High Pressure Fire Water System, C-1, in C-333 building was discovered to be in a potential frozen condition on the system main supply header standpipe. Frozen water in the standpipe could result in the restricted flow or complete loss of water supply to the sprinkler heads. The PSS declared the system inoperable and TSR LCO 2.4.4.5 actions were initiated to remove the system from service. Freeze out of the system was due to extremely low outside ambient temperatures and a faulty filter room thermostat. The event is reportable as a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> event, as required by 10 CFR 76.120(c)(2)(i); An event in which equipment is disabled or fails to function as designed when the equipment is required by a TSR to prevent releases, prevent exposures to radiation and radioactive materials exceeding specified limits, mitigate the consequences of an accident, or restore this facility to a pre-established safe condition after an accident. The equipment was required by TSR to be available and operable and no redundant equipment was available to perform the required safety function. The faulty filter room thermostat was replaced, and the High Pressure Fire Water System was declared operable at 1500 CST. Operations personnel took compensatory measures by checking similar indicators in all process buildings. The Senior NRC Resident Inspector has been notified of this event.

ENS 40492 +/-
Where
Paducah Gaseous Diffusion Plant Paducah, Kentucky (NRC Region 2)
License number:	GDP-1
Reporting

10 CFR 76.120(c)(2)
Time - Person (Reporting Time:+2.98 h0.124 days <br />0.0177 weeks <br />0.00408 months <br />)
Opened:	Eric Walker 18:40 Jan 30, 2004
NRC Officer:	Eric Thomas
Last Updated:	Jan 30, 2004
40492 - NRC Website
v • d • e

v t e Emergency Notification System
Paducah Gaseous Diffusion Plant with 10 CFR 76.120(c)(2)
WEEKMONTHYEAR2014-05-08T15:24:00 [Table view]
[ENS list for Paducah Gaseous Diffusion Plant]

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