ML110190640

Event Notification Report; Subject: Power Reactor Indian Point Unit 2

ML110190640
Person / Time
Site:	Indian Point
Issue date:	11/09/2010
From:	Office of Nuclear Reactor Regulation
To:
References
FOIA/PA-2011-0045, FOIA/PA-2011-0066
Download: ML110190640 (2)

Text

NRC: Event Notification Report for November 9, 2010 Page I ot 2 Power Reactor Event Number: 46400 Facility: INDIAN POINT Notification Date: 11/07/2010 Region: 1 State: NY Notification Time: 19:07 [ET]

Unit: [2] [ ] [ ] Event Date: 11/07/2010.

RX Type: [2] W-4-LP,[3] W-4-LP Event Time: 18:39 [EST]

NRC Notified By: NICK LAZZO Last Update Date: 11/08/2010 HQ OPS Officer: HOWIE CROUCH Emergency Class: ALERT Person (Organization):

10 CFR Section: JOHN WHITE (RIDO) 50.72(a) (1) (i) - EMERGENCY DECLARED SHERBAHADUR (NRR) 50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL ERIC LEEDS (NRR) 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION BILL DEAN (RIRA) 50.72(b)(2)(xi) - OFFSITE NOTIFICATION BILL GOTT (IRD)

DOYLE (DHS)

BURCKART (FEMA)

TURNER (DOE)

USERY (USDA)

GRUENSPECHT (HHS)

SCRAM Current Unit Code RX CRIT Initial PWR Initial RX Mode PWR Current RX Mode 2 A/R Y 100 Power Operation 0 Hot Standby Event Text ALERT DECLARED DUE TO EXPLOSION IN THE 21 MAIN TRANSFORMER At 1849 EST, the licensee declared an Alert due to an explosion in the 21 Main Transformer. As a result of the loss of the transformer, Unit 2 experienced a reactor trip. Plant response to the trip was normal and the plant is stable in Mode

3. At 1839 hrs., the licensee activated their Emergency Response Organization. Additionally, there was a report of smoke issuing from a metering station at the site boundary. Offsite assistance has been requested to investigate the metering station. No injuries were reported and the licensee is investigating whether any other equipment damage occurred as a result of the transformer failure.

• • • UPDATE FROM NICK'LIZZO TO HOWIE CROUCH AT 2200 EST ON 11/07/10 ***

"On November 7, 2010, at 1839 hours0.0213 days <br />0.511 hours <br />0.00304 weeks <br />6.997395e-4 months <br />, the Reactor Protection System automatically actuated at 100% Reactor Power when the 21 Main Transformer failed. The failure resulted in a turbine / reactor trip. All plant equipment responded normally to the unit trip. This is reportable under 10 CFR 50.72(b)(2)(iv). The transformer failure was characterized as an explosion that meets the IPEC [Indian Point Energy Center] EAL criteria 8.2.3. An Alert was declared at 1849 hours0.0214 days <br />0.514 hours <br />0.00306 weeks <br />7.035445e-4 months <br />.

The plant is stable in Mode 3 at this time.

"The Auxiliary. Feedwater System actuated following the manual trip, as expected. This is reportable under 10 CFR 50.72(b)(3)(iv)(A). The Emergency Diesel Generators did not start as offsite power remained available and stable. The Station Auxiliary Transformer tap changer has remained at the maximum tap changer position and is inoperable, however the unit remains on offsite power and all electrical loads are stable. No primary or secondary relief valves lifted. The plant is in Hot Standby at normal temperature and pressure with residual heat removal using auxiliary feedwater and normal heat removal through the condenser via steam dumps. There was no radiation released,.

"Indian Point Unit Three was not affected by this event and remains at 100% power.

"A post trip investigation is in progress.

"A one hour notification of the Alert Declaration was made to the NRC Emergency Operations Duty Center officer Howie Crouch at 1907 [hrs. EST]."

The licensee has notified the NRC Resident Inspector, the New York State Public Service Commission, New York State http://www.nrc. gov/readirig-rm/doc-collections/event-status/event/20 10/201011 9en.html 12/16/2010

NRC: Evqnt Notification Report for November 9, 2010 Page 2 of 2 EMA and local county officials.

Notified RIDO (White).

• • • UPDATE FROM CHARLES LAVERDE TO HOWIE CROUCH AT 2230 EST ON 11/07/10 ***

At 2218 EST, the licensee exited the Alert emergency declaration. The exit criteria was that:

1) The plant was in or was proceeding to cold shutdown,

2) No radiation release was in progress or anticipated

3) All radiation levels in the plant were stable or decreasing, and

4) No limitation on access to all plant areas.

The licensee has notified the NRC Resident Inspector. Notified IRD (Gott), RIDO (White), NRR EO (Bahadur), FEMA (Heyman), DHS (Doyle), HHS (Gruenspecht), USDA (John) and DOE (Turner).

• • • UPDATE ON 11/8/2010 AT 1228 FROM MICHAEL McCARTHY TO MARK ABRAMOVITZ ***

Approximately 50-100 gallons of oil from the transformer reached the Hudson River. The licensee notified the National Response Center and the New York State Department of Environmental Conservation.

The licensee notified the NRC Resident Inspector.

Notified the RIDO (White).

http ://www.nrc.gov/reading-rm/doc-collections/event-status/event/2010/20101109en.html 12/16/2010