ENS 44703

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v t e ENS Event
02:10 Dec 8, 2008
Title	Inadvertent Edg Start
Event Description	On 12/7/08 at 2010 CST, Emergency Diesel Generator 2 was started manually from its local control cabinet. The diesel started and operated as designed upon operation of the local Emergency Start Push button. This was an inadvertent start of the diesel during an alarm test on the local engine panel. The alarm test and emergency start push buttons are in close proximity and of similar design and color. The diesel has since been shutdown and returned to a standby condition. The Emergency Diesel Generator remains capable of performing its designed function and was considered operable throughout the evolution. Therefore this report is being made in reference to 10CFR 50.72(b)(3)(iv)(A) . The licensee notified the NRC Resident Inspector. * * RETRACTION AT 1549 EST ON 12/10/2008 FROM ERICK MATZKE TO MARK ABRAMOVITZ * * * On 12/7/2008, Fort Calhoun reported an inadvertent start of a diesel generator (event Number 44703). Based on a detailed review of NUREG-1022, this event has been determined not to be reportable under 10 CFR 50.72(b)(3)(iv)(A) . As reported, the diesel generator was not intentionally manually started by the operator. Therefore, this event was an invalid actuation of the safety system and this notification is being retracted. An appropriate report will be forthcoming as required by 10CFR50.73(a)(2)(iv)(A) and 10CFR50.73(a)(1). The licensee notified the NRC Resident Inspector. Notified the R4DO (Cain). * * RETRACTION WITHDRAWN AT 1125 EST ON 1/23/2009 FROM ERICK MATZKE TO VINCE KLCO As allowed by 10 CFR 50.73(a)(1), the following information is provided: On December 7, 2008, an equipment operator inadvertently started emergency diesel generator 1 using the local Emergency Start push button. The operator was distracted and failed to apply appropriate self checking. This report is being made under 10 CFR50.73(a)(2)(iv)(A): a) The train that was actuated was diesel generator train 2. b) The train actuation was complete. The diesel started and operated as designed. The associated emergency bus was not deenergized so the diesel did not connect to the bus. c) As previously noted, the diesel started and functioned successfully for the plant conditions at the time. The licensee notified the NRC Resident Inspector. Notified the R4DO (Farnholtz).

ENS 44703 +/- *RETRACTED*
Where
Ft Calhoun Nebraska (NRC Region 4)
Reporting

10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation
Time - Person (Reporting Time:+-2.3 h-0.0958 days <br />-0.0137 weeks <br />-0.00315 months <br />)
Opened:	Ramon Peter 23:52 Dec 7, 2008
NRC Officer:	Joe O'Hara
Last Updated:	Jan 23, 2009
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v • d • e

v t e Emergency Notification System
Fort Calhoun with 10 CFR 50.73(a)(1), Submit an LER
WEEKMONTHYEAR2011-05-10T09:30:00 [Table view]
[ENS list for Fort Calhoun]

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