ENS 57488: Difference between revisions

From kanterella

Jump to navigation Jump to search

Revision as of 07:20, 8 January 2025

v t e ENS Event
13:41 Nov 9, 2024
Title	60-DAY Optional Telephonic Notification for an Invalid Emergency Diesel Generator Actuation
Event Description	The following information was provided by the licensee via phone and email: This 60-day telephone notification is being made per the reporting requirements specified by 10 CFR 50.73(a)(2)(iv)(A) and 10 CFR 50.73(a)(l) to describe an invalid specific system actuation. At 0841 EST on November 9, 2024, with Unit 2 in mode 5, at 0 percent power, an actuation of the 2-1 emergency diesel generator (EDG) occurred when an invalid start signal was generated during troubleshooting activities associated with the 2AE diesel start relay. The 2-1 EDG automatically started as designed when the start signal was received. The output breaker did not close and the 2AE emergency bus remained energized from offsite power consistent with plant design. This was a complete actuation of an EDG to start and come to rated speed, and all affected systems functioned as expected in response to the actuation. Following the actuation, the 2-1 EDG was shut down in accordance with plant procedures. Unit 1 was in mode 1 at 100 percent power and was not affected by this event. This event is considered an invalid system actuation reportable under 10 CFR 50.73(a)(2)(iv)(A). The actuation was not initiated in response to actual plant conditions or parameters and was not a manual initiation. Therefore, in accordance with 10 CFR 50.73(a)(l), this telephone notification is provided within 60 days after discovery of the event instead of submitting a written licensee event report. There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified.

ENS 57488 +/-
Where
Eaver Valley Pennsylvania (NRC Region 1)
Reporting

10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation
Time - Person (Reporting Time:+1415.43 h58.976 days <br />8.425 weeks <br />1.939 months <br />)
Opened:	Nate Falkenstein 13:07 Jan 7, 2025
NRC Officer:	Josue Ramirez
Last Updated:	Jan 7, 2025
57488 - NRC Website
v • d • e

v t e Emergency Notification System
Eaver Valley with 10 CFR 50.73(a)(1), Submit an LER
WEEKMONTHYEAR2024-11-09T13:41:00 [Table view]
[ENS list for Eaver Valley]

Retrieved from "https://kanterella.com/w/index.php?title=ENS_57488&oldid=5099700"