ENS 40480

v t e ENS Event
22:00 Jan 25, 2004
Title	High Differential Pressure in Auxiliary Building
Event Description	On January 25, 2004, during troubleshooting of high differential pressure in the Unit 1 Auxiliary Building, the 1ABF13 fire damper was found closed at approximately 1700 (EST) hours. The 1ABF13 fire damper was re-opened and system flows and differential pressure were verified to be normal at approximately 1950 hours0.0226 days <br />0.542 hours <br />0.00322 weeks <br />7.41975e-4 months <br />. On January 26, 2004, at 1500 hours0.0174 days <br />0.417 hours <br />0.00248 weeks <br />5.7075e-4 months <br />, a determination was made that with the 1ABF13 fire damper closed, filtration of the effluents from the pipe chase and RHR areas could not be processed through the HEPA-Charcoal absorber. This condition did not meet the assumptions of the Salem dose analysis and is being reported under the requirement of 10CFR50.72(b)(3)(v)(D). The licensee notified the NRC Resident Inspector.

ENS 40480 +/-
Where
Salem New Jersey (NRC Region 1)
Reporting

10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
LER:	05000272/LER-2003-005 Regarding Condition Prohibited by Technical Specifications: Auxiliary Building Ventilation System Fire Damper Found Out of Position
Time - Person (Reporting Time:+19.18 h0.799 days <br />0.114 weeks <br />0.0263 months <br />)
Opened:	Joseph Shisler 17:11 Jan 26, 2004
NRC Officer:	Bill Gott
Last Updated:	Jan 26, 2004
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v • d • e

v t e Emergency Notification System
Salem with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
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