ENS 48200

v t e ENS Event
09:50 Aug 17, 2012
Title	Inadvertent Actuation of Primary Containment Isolation System
Event Description	On 08/17/2012, while performing 2-SR-3.3.6.1(3DFT) - HPCI [High Pressure Coolant Injection] Steam Line Space Temperature Functional Test, an inadvertent PCIS [Primary Containment Isolation Signal] Group 4 (HPCI) isolation signal occurred. All automatic actions occurred as designed. Cause of the isolation is unknown with investigation in progress. This incident is reportable as an 8-hour ENS notification under 10 CFR 50.72 (b)(3)(v)(D). The incident also requires a 60 day written report. The NRC [Resident] Inspector has been notified. The steam supply valves to HPCI remain closed during trouble shooting and repair, however, HPCI remains available for use if needed.

ENS 48200 +/-
Where
Browns Ferry Alabama (NRC Region 2)
Reporting

10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Time - Person (Reporting Time:+2.5 h0.104 days <br />0.0149 weeks <br />0.00342 months <br />)
Opened:	John Ridinger 12:20 Aug 17, 2012
NRC Officer:	John Shoemaker
Last Updated:	Aug 17, 2012
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v • d • e

v t e Emergency Notification System
Browns Ferry with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2026-01-18T20:45:00 [Table view]
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