U.S. Nuclear Regulatory Commission
Operations Center
Event Reports For
03/27/2003 - 03/28/2003
** EVENT NUMBERS **
39558 39699 39705 39709
!!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!!
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|Power Reactor |Event Number: 39558 |
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| FACILITY: SAINT LUCIE REGION: 2 |NOTIFICATION DATE: 02/03/2003|
| UNIT: [1] [] [] STATE: FL |NOTIFICATION TIME: 19:51[EST]|
| RXTYPE: [1] CE,[2] CE |EVENT DATE: 02/03/2003|
+------------------------------------------------+EVENT TIME: 17:45[EST]|
| NRC NOTIFIED BY: DAVE FIELDS |LAST UPDATE DATE: 03/27/2003|
| HQ OPS OFFICER: MIKE RIPLEY +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: NON EMERGENCY |KERRY LANDIS R2 |
|10 CFR SECTION: | |
|AIND 50.72(b)(3)(v)(D) ACCIDENT MITIGATION | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 N Y 100 Power Operation |100 Power Operation |
| | |
| | |
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EVENT TEXT
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| CONTROL ROOM VENTILATION FILTER TRAIN INOPERABLE |
| |
| "Plant identified a condition which could render the Unit 1 Control Room |
| Ventilation Filter Train inoperable. This filter train is designed to |
| mitigate radiological conditions within the occupied Control Room during an |
| accident. A distorted cover was identified on ventilation ductwork which |
| failed to provide an adequate seal. The ductwork is under repair and |
| investigation is in progress." |
| |
| The licensee notified the NRC resident inspector. |
| |
| *** RETRACTION ON 3/27/03 AT 0940 EST RECEIVED FROM DAVID FIELDS TO ARLON |
| COSTA *** |
| |
| "FPL is retracting this notification based on a subsequent Generic Letter |
| 91-18 operability analysis of the observed condition. The operability |
| assessment determined that the postulated in-leakage from the distorted |
| ductwork cover plate was bounded by the maximum allowable alternate source |
| term methodology unfiltered in-leakage. The analysis concluded that the |
| control room envelope continued to meet its required safety function with |
| respect to dose. Therefore the condition does not meet 10 CFR 50.72 or |
| 50.73 reporting requirements." |
| |
| The licensee notified the NRC resident inspector. |
| |
| Notified R2DO (Bernhard). |
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|Power Reactor |Event Number: 39699 |
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| FACILITY: PALISADES REGION: 3 |NOTIFICATION DATE: 03/25/2003|
| UNIT: [1] [] [] STATE: MI |NOTIFICATION TIME: 11:42[EST]|
| RXTYPE: [1] CE |EVENT DATE: 03/25/2003|
+------------------------------------------------+EVENT TIME: 11:21[EST]|
| NRC NOTIFIED BY: KEN JOHNSON |LAST UPDATE DATE: 03/27/2003|
| HQ OPS OFFICER: ERIC THOMAS +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: ALERT |MICHAEL PARKER R3 |
|10 CFR SECTION: |BILL BATEMAN NRR |
|AAEC 50.72(a) (1) (i) EMERGENCY DECLARED |JOHN JOLICOEUR IRO |
|AESF 50.72(b)(3)(iv)(A) VALID SPECIF SYS ACTUAT|DAVE BARDEN FEMA |
|AINB 50.72(b)(3)(v)(B) POT RHR INOP |BLAIR SPITZBERG R4 |
|APRE 50.72(b)(2)(xi) OFFSITE NOTIFICATION |JAMES DYER RA |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 N N 0 Refueling |0 Refueling |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
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| ALERT DECLARED DUE TO LOSS OF SHUTDOWN COOLING |
| |
| The reactor is shutdown for a refueling outage since 3/17/03. An alert |
| declaration was made on 3/25/03 at 1121 EST due to loss of shutdown cooling. |
| Time to boil is estimated to be less than fifty five (55) minutes. Plant |
| status is degrading. There are no radioactivity releases in progress. The |
| current wind direction is from 270 to 90 degrees. The wind speed is eight |
| (8) miles per hour, class B stability with no precipitation. Mitigating |
| responses by the Licensee are in progress. |
| |
| The U.S. NRC entered the Monitoring Phase of Normal Mode at 1159 at EST. |
| |
| *** UPDATE ON 3/25/03 AT 1233 EST FROM JONATHAN SEGUNDO TO HQ OPERATIONS |
| CENTER*** |
| |
| The Alert condition was terminated and the Station entered an Unusual Event |
| at 12:31 EST due to loss of offsite power. Shutdown cooling was restored at |
| 11:41 EST. Plant systems are being powered by the Emergency Diesel |
| Generators. Reactor Coolant System temperature is at 104 degrees |
| Fahrenheit. There are no radioactivity releases in progress. |
| |
| *** UPDATE ON 3/25/03 AT 1824 EST FROM AMY HAZELHOFF TO ARLON COSTA*** |
| |
| "Nuclear Management Company is providing additional information related to |
| event notification 39699, which was reported at 1121 [1142] EST on March 25, |
| 2003. This information is provided for completeness of reportability |
| requirements. The event reported earlier is also reportable under the |
| following criteria: |
| 10CFR50.72(b)(3)(iv)(A), due to actuation of the emergency diesel generators |
| and |
| 10CFR50.72(b)(3)(v)(B), due to loss of shutdown cooling. |
| |
| "Additionally, a press release has been issued. Therefore, a report is |
| required per 10CFR50.72(b)(2)(xi) for notification to offsite agencies. |
| Palisades remains in an Unusual Event until a qualified offsite circuit is |
| supplying a vital bus. The plant is currently stable. The root cause [of |
| this incident] is not yet known." |
| |
| Notifications of this update were made by the Licensee to the NRC Resident |
| Inspector, the state, local and other government agencies, and a press |
| release was issued on this incident. |
| |
| * * * UPDATE ON 3/27/03 AT 1742 EST FROM PAUL ZWISSLER TO HOWIE CROUCH * * * |
| |
| |
| Palisades Nuclear Power Plant has terminated the Unusual Event declared on |
| 3/25/03. Plant vital busses are being powered by offsite power source and |
| the emergency diesel generators have been secured and returned to standby |
| status. There were no security implications associated with this event. |
| |
| The licensee has notified the NRC Resident Inspector. |
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|Power Reactor |Event Number: 39705 |
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| FACILITY: PALO VERDE REGION: 4 |NOTIFICATION DATE: 03/27/2003|
| UNIT: [1] [] [] STATE: AZ |NOTIFICATION TIME: 13:51[EST]|
| RXTYPE: [1] CE,[2] CE,[3] CE |EVENT DATE: 03/27/2003|
+------------------------------------------------+EVENT TIME: 09:43[MST]|
| NRC NOTIFIED BY: DONALD STRAKA |LAST UPDATE DATE: 03/27/2003|
| HQ OPS OFFICER: HOWIE CROUCH +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: NON EMERGENCY |BLAIR SPITZBERG R4 |
|10 CFR SECTION: | |
|ARPS 50.72(b)(2)(iv)(B) RPS ACTUATION - CRITICA| |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 M/R Y 98 Power Operation |0 Hot Standby |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
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| MANUAL REACTOR SCRAM DUE TO CONDENSER TUBE RUPTURE |
| |
| The following information was received from the licensee via facsimile: |
| |
| "The following event description is based on information currently |
| available. If through subsequent reviews of this event, additional |
| information is identified that is pertinent to this event or alters the |
| information being provided at this time, a follow-up notification will be |
| made via the ENS or under the reporting requirements of 10CFR50.73. |
| |
| "On March 27, 2003, at approximately 09:43 MST Palo Verde Unit 1 experienced |
| a manual reactor trip from approximately 98% rated thermal power due to a |
| condenser tube rupture. Unit 1 was at normal operating temperature and |
| pressure prior to the trip. All CEAs inserted fully into the reactor core. |
| This was an uncomplicated reactor trip. No ESF actuations occurred and none |
| were required. Safety related buses remained energized during and following |
| the reactor trip. The offsite power grid is stable. No significant LCOs |
| have been entered as a result of this event. There was no loss of normal |
| heat removal capabilities, or loss of any safety functions associated with |
| this event. No major equipment was inoperable prior to the event that |
| contributed to the event. The event did not result in any challenges to |
| fission product barriers and there were no adverse safety consequences as a |
| result of this event. The event did not adversely affect the safe operation |
| of the plant or the health and safety of the public. |
| |
| "Unit 1 is stable at normal operating temperature and pressure in Mode 3. |
| There is no estimated time and date for the Unit 1 restart at the time this |
| call is being made." |
| |
| Palo Verde Units 2 and 3 were unaffected by the Unit 1 trip. There were no |
| lifts of primary or secondary power-operated or manual relief valves. Decay |
| heat removal is being provided via condenser clean-up long path recirc and |
| normal cooldown via the unaffected condenser. Prior to the scram, chloride |
| levels in the steam generators were measured at 25 ppm and rising. Plant |
| abnormal operating procedures require a manual reactor scram at 35 ppm |
| chloride. There is no indications of primary-to-secondary leakage. |
| |
| The licensee has notified the NRC Resident Inspector. |
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|Power Reactor |Event Number: 39709 |
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| FACILITY: CALVERT CLIFFS REGION: 1 |NOTIFICATION DATE: 03/28/2003|
| UNIT: [1] [2] [] STATE: MD |NOTIFICATION TIME: 02:28[EST]|
| RXTYPE: [1] CE,[2] CE |EVENT DATE: 03/28/2003|
+------------------------------------------------+EVENT TIME: [EST]|
| NRC NOTIFIED BY: JIM GROOM |LAST UPDATE DATE: 03/28/2003|
| HQ OPS OFFICER: STEVE SANDIN +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: NON EMERGENCY |JOHN WHITE R1 |
|10 CFR SECTION: | |
|APRE 50.72(b)(2)(xi) OFFSITE NOTIFICATION | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 N Y 100 Power Operation |100 Power Operation |
|2 N N 0 Refueling |0 Refueling |
| | |
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EVENT TEXT
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| POTENTIAL MEDIA INTEREST DUE TO STATE POLICE SEARCH OF THE OWNER CONTROLLED |
| AREA |
| |
| The Calvert Control Center in Prince Frederick County received an anonymous |
| call through the 911 operator which prompted the Maryland State Police to |
| furnish additional officers to the site for a search of the woodline area of |
| the owner controlled property. The licensee will inform their media group |
| due to the potential media interest and has informed both state/local |
| agencies and the NRC resident inspector. |
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