ENS 51739

v t e ENS Event
14:46 Jan 9, 2016
Title	Invalid Actuation of Emergency Diesel Generator
Event Description	This 60-day optional telephone notification is being made in lieu of an LER submittal, as allowed by 10 CFR 50.73(a)(1). This notification is made pursuant to the reporting requirements specified in 10 CFR 50.73(a)(2)(iv)(A) for an invalid actuation of one of the systems listed in 10 CFR 50.73(a)(2)(iv)(B). On January 9, 2016, at 0946 Eastern Standard Time (EST), an invalid actuation of EDG 2 occurred. During the performance of procedure 0PT-12.2.1B, 'ECCS D/G #2 Logic Test,' procedure steps were performed out of sequence. As a result, the EDG 2 control logic was not properly defeated to prevent the auto-start prior to testing portions of the Emergency Core Cooling System (ECCS) EDG 2 logic. EDG 2 responded properly to the auto-start signal. The actuation was complete, in that the EDG started and ran unloaded. EDG 2 was returned to standby status at 1130 EST. Since no actual bus under voltage condition existed which required the EDG to start, and the start was not in response to actual plant conditions satisfying the requirements for initiation, this event has been classified as an invalid actuation. This event did not result in any adverse impact to the health and safety of the public. The licensee has notified the NRC Resident Inspector.

ENS 51739 +/-
Where
Brunswick North Carolina (NRC Region 2)
Reporting

10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation
LER:	05000325/LER-2017-004
Time - Person (Reporting Time:+931.83 h38.826 days <br />5.547 weeks <br />1.276 months <br />)
Opened:	Mark Turkal 10:36 Feb 17, 2016
NRC Officer:	Jeff Rotton
Last Updated:	Feb 17, 2016
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v • d • e

v t e Emergency Notification System
Brunswick with 10 CFR 50.73(a)(1), Submit an LER
WEEKMONTHYEAR2024-01-02T04:33:00 [Table view]
[ENS list for Brunswick]

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