ENS 45231: Difference between revisions

From kanterella

Latest revision as of 21:11, 1 March 2018

v t e ENS Event
14:00 Jul 27, 2009
Title	Technical Support Center (Tsc) Hvac Found Degraded Due to Water Intrusion
Event Description	At about 10:00, on July 27, 2009, the Technical Support Center (TSC) HVAC was found to be degraded. The fan motor was running but there was no air flow and the TSC rooms were not being maintained with a positive pressure. Upon investigation, the fan housing was found partially filled with water, submerging the motor and preventing air flow through the system. Repair of the motor will take more than one day and is being immediately pursued. This affects the ability of the TSC ventilation to maintain adequate radiological habitability in the event of an emergency with an airborne radiological release. All other capabilities of the TSC are unaffected by this emergent repair. Existing procedures provide direction to relocate TSC personnel in the event of a TSC habitability concern; however, the backup facility does not have standby electrical power or a filtered ventilation system. Therefore, this condition is considered a major loss of emergency assessment capability and is reportable under 10CFR50.72(b)(3)(xiii). The TSC HVAC was last functionally tested satisfactorily on 06/29/09. The licensee believes the water found in the HVAV fan housing may be a result of a clogged drain line. The licensee will inform the NRC Resident Inspector.

ENS 45231 +/-
Where
Crane Pennsylvania (NRC Region 1)
Reporting

10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
Time - Person (Reporting Time:+2.85 h0.119 days <br />0.017 weeks <br />0.0039 months <br />)
Opened:	Adam Miller 16:51 Jul 27, 2009
NRC Officer:	Steve Sandin
Last Updated:	Jul 27, 2009
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v • d • e

v t e Emergency Notification System
Crane with 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
WEEKMONTHYEAR2016-07-18T20:00:00 [Table view]
[ENS list for Crane]

@@ Line 16: / Line 16: @@
 | event date = 07/27/2009 10:00 EDT
 | last update date = 07/27/2009
-| title = Technical Support Center (Tsc) Hvac Found Degraded Due To Water Intrusion
+| title = Technical Support Center (Tsc) Hvac Found Degraded Due to Water Intrusion
 | event text = At about 10:00, on July 27, 2009, the Technical Support Center (TSC) HVAC was found to be degraded. The fan motor was running but there was no air flow and the TSC rooms were not being maintained with a positive pressure. Upon investigation, the fan housing was found partially filled with water, submerging the motor and preventing air flow through the system. Repair of the motor will take more than one day and is being immediately pursued. This affects the ability of the TSC ventilation to maintain adequate radiological habitability in the event of an emergency with an airborne radiological release. All other capabilities of the TSC are unaffected by this emergent repair. Existing procedures provide direction to relocate TSC personnel in the event of a TSC habitability concern; however, the backup facility does not have standby electrical power or a filtered ventilation system. Therefore, this condition is considered a major loss of emergency assessment capability and is reportable under 10CFR50.72(b)(3)(xiii).
 The TSC HVAC was last functionally tested satisfactorily on 06/29/09.  The licensee believes the water found in the HVAV fan housing may be a result of a clogged drain line.