ENS 42056: Difference between revisions

v t e ENS Event
11:02 Oct 15, 2005
Title	Auxiliary Feedwater Actuation on a Manual Reactor Trip
Event Description	Auxiliary Feedwater actuation due to low steam generator level following a manual reactor trip. At 0702 on 10/15/05, a manual reactor trip was initiated due to decreasing level on the 3C steam generator. Auxiliary Feedwater system actuated as expected due to post-trip steam generator level decrease. 3C steam generator level was restored using Auxiliary and Main feed. The cause of the loss of steam generator level control is under investigation. The plant is stable in Mode 3 with the Auxiliary Feedwater system in standby. All control rods fully inserted. The decay heat removal path is normal feedwater through the steam generators and out the atmospheric relief valves. There are no primary to secondary steam generator tube leaks. Safety related electrical busses are powered via normal offsite power. Emergency diesel generators are available if needed. There was no impact on Unit 4. The licensee notified the NRC Resident Inspector. * * UPDATE AT 1147 ON 10/19/05 FROM E. TREMBLAY TO P. SNYDER * * * Updated to include notification under 10 CFR 50.72 (b)(2) for manual reactor trip. The licensee notified the NRC Resident Inspector. R2DO (Ernstes) notified.

ENS 42056 +/-
Where
Turkey Point Florida (NRC Region 2)
Reporting

10 CFR 50.72(b)(3)(iv)(A), System Actuation 10 CFR 50.72(b)(2)(iv)(B), RPS Actuation
Time - Person (Reporting Time:+-2.13 h-0.0888 days <br />-0.0127 weeks <br />-0.00292 months <br />)
Opened:	Jim Speicher 08:54 Oct 15, 2005
NRC Officer:	Pete Snyder
Last Updated:	Oct 19, 2005
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v • d • e

v t e Emergency Notification System
Turkey Point with 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
WEEKMONTHYEAR2023-09-22T22:19:00 [Table view]
[ENS list for Turkey Point]

@@ Line 16: / Line 16: @@
 | event date = 10/15/2005 07:02 EDT
 | last update date = 10/19/2005
-| title = Auxiliary Feedwater Actuation On A Manual Reactor Trip
+| title = Auxiliary Feedwater Actuation on a Manual Reactor Trip
 | event text = Auxiliary Feedwater actuation due to low steam generator level following a manual reactor trip.
 At 0702 on 10/15/05, a manual reactor trip was initiated due to decreasing level on the 3C steam generator. Auxiliary Feedwater system actuated as expected due to post-trip steam generator level decrease. 3C steam generator level was restored using Auxiliary and Main feed. The cause of the loss of steam generator level control is under investigation.

Latest revision as of 21:20, 1 March 2018