United States Nuclear Regulatory Commission - Protecting People and the Environment
Home > NRC Library > Document Collections > Reports Associated with Events > Event Notification Reports > 2010 > March 26

Event Notification Report for March 26, 2010

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
03/25/2010 - 03/26/2010

** EVENT NUMBERS **


45775 45782 45789 45790 45791 45792 45793

To top of page
!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor Event Number: 45775
Facility: HATCH
Region: 2 State: GA
Unit: [1] [2] [ ]
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: PAUL UNDERWOOD
HQ OPS Officer: JOHN KNOKE
Notification Date: 03/18/2010
Notification Time: 20:21 [ET]
Event Date: 03/18/2010
Event Time: 18:16 [EDT]
Last Update Date: 03/25/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
MARK FRANKE (R2DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N N 0 Startup 0 Startup
2 N Y 100 Power Operation 100 Power Operation

Event Text

LOSS OF TONE ALERT RADIOS

"At approximately 1816 EDT, loss of prompt notification system (tone alert radios) occurred. Security notified Jacksonville National Weather Service and Information Technology to investigate. Jacksonville National Weather Service determined a problem with their equipment and prompt notification system (tone alert radios) was returned to service at approximately 1845 eastern time. Security has notified state and local agencies of prompt notification system (tone alert radio) outage and return to service."

The licensee has notified the NRC Resident Inspector. Licensee also notified State and local agencies.

* * * RETRACTION FROM FRANK GORLEY TO PETE SNYDER AT 1535 ON 3/25/10 * * *

"On 3/18/10 at approximately 11:40 am we started receiving an 'off-air' alarm for the Plant Hatch NOAA Weather Radio. Initially we determined that a loss of the prompt notification system had occurred due to the alarm and consultation with Jacksonville National Weather Service, Ref. 10 CFR 50.72 (b)(3)(xiii).

"NOAA personnel subsequently provided information to Plant Hatch personnel at which time it was learned that even though 'off-air' alarms were received for the NOAA Weather Radio, the radio was never off the air. While NOAA personnel were troubleshooting the system the broadcast was switched over to a digital backup system that continued to have the capability to warn the public. There was a problem noted in the broadcast that was causing several seconds of silence in the broadcast signal. While on the digital backup, the notification capability was maintained. The broadcast had been returned to the primary system today. During the time these activities were underway, broadcast capability to the public was never lost.

"Based on this information, Plant Hatch is entering a Notification of Retraction for the 8 hr. report documented to the NRC Event Number 45775, as entered on 3/18/10."

The licensee will notify the NRC Resident Inspector. Notified R2DO (Franke).

To top of page
General Information or Other Event Number: 45782
Rep Org: TEXAS DEPARTMENT OF HEALTH
Licensee: WEATHERFORD US LP
Region: 4
City: BENBROOK State: TX
County:
License #: L-00747
Agreement: Y
Docket:
NRC Notified By: BOB FREE
HQ OPS Officer: BILL HUFFMAN
Notification Date: 03/22/2010
Notification Time: 17:36 [ET]
Event Date: 03/19/2010
Event Time: [CDT]
Last Update Date: 03/22/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
RICK DEESE (R4DO)
JIM LUEHMAN (FSME)

Event Text

AGREEMENT STATE REPORT - WELL LOGGING TOOL EJECTED DURING WELL BLOW-OUT

The following information was received from the State of Texas via e-mail:

"Weatherford personnel were logging a well in Howard County, Texas when a blow out occurred. The logging tool was at 3500 feet when the tool and wireline were ejected from the well bore. The blow out preventer did not stop the tool and wireline from being ejected onto the surface. The crew evacuated the drilling rig due to the hazards associated with the high downhole pressure. Initially it was unknown whether the logging tool was still in the hole. A logging company manager conducted radiation surveys and found the tool, with the sources still in place near the logging truck. The sources were secured in their transport shields and returned to the company office for leak testing. At this point, there is no estimate of exposures to personnel at the well site."

Texas Report # I-8726

To top of page
Power Reactor Event Number: 45789
Facility: FERMI
Region: 3 State: MI
Unit: [2] [ ] [ ]
RX Type: [2] GE-4
NRC Notified By: GREG MILLER
HQ OPS Officer: PETE SNYDER
Notification Date: 03/25/2010
Notification Time: 18:18 [ET]
Event Date: 03/25/2010
Event Time: 16:27 [EDT]
Last Update Date: 03/25/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
LAURA KOZAK (R3DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
2 A/R Y 63 Power Operation 0 Hot Shutdown

Event Text

AUTOMATIC REACTOR SHUTDOWN DUE TO MAIN TURBINE TRIP

"At 1627 EDT on 3/25/10, the reactor mode switch was taken to shutdown following an automatic scram due to a main turbine trip. The scram was uncomplicated, and all control rods fully inserted into the core. The lowest reactor vessel water level reached was 136 inches, and as expected, HPCI & RCIC did not actuate. No safety relief valves (SRV) actuated. Reactor water level is being controlled in the normal band using the control rod drive and reactor feedwater systems. All isolations and actuations for reactor water level 3 occurred as expected.

"The cause of the Main Turbine Trip is under investigation.

"At the time of the scram all Emergency Core Cooling Systems and [Emergency Diesel Generators] EDGs were operable, and no safety related equipment was out of service."

The licensee notified the NRC Resident Inspector.

To top of page
Power Reactor Event Number: 45790
Facility: FT CALHOUN
Region: 4 State: NE
Unit: [1] [ ] [ ]
RX Type: [1] CE
NRC Notified By: ERICK MATZKE
HQ OPS Officer: VINCE KLCO
Notification Date: 03/25/2010
Notification Time: 18:53 [ET]
Event Date: 03/25/2010
Event Time: 10:28 [CDT]
Last Update Date: 03/25/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(B) - POT RHR INOP
Person (Organization):
RICK DEESE (R4DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation

Event Text

HIGH PRESSURE SAFETY INJECTION INOPERABLE DUE TO VOIDS IDENTIFIED IN SUCTION PIPING

"At 1028 CDT today 3/25/2010, a rejectable void was found in one of the suction lines (cooled suction line) to the B HPSI [High Pressure Safety Injection] pump. The main suction line is water filled. The piping was declared inoperable and the appropriate technical specification was entered. At 1357 CDT the void was cleared from the cooled suction line and the piping was declared operable. Subsequently, at 1409 CDT a similar rejectable void was discovered in the other cooled suction line for HPSI pumps A and C. The piping was declared inoperable. The appropriate technical specification was entered. At 1447 CDT the void was cleared and the piping was declared operable. Due to the close proximity of these occurrences the station is conservatively reporting this as a safety system functional failure as it appears that both trains of HPSI cooled suction were inoperable at the same time."

The licensee notified the NRC Resident Inspector.

To top of page
Power Reactor Event Number: 45791
Facility: TURKEY POINT
Region: 2 State: FL
Unit: [ ] [4] [ ]
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: ROGER MONTGOMERY
HQ OPS Officer: PETE SNYDER
Notification Date: 03/25/2010
Notification Time: 20:18 [ET]
Event Date: 03/25/2010
Event Time: 15:40 [EDT]
Last Update Date: 03/25/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
EUGENE GUTHRIE (R2DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
4 N Y 100 Power Operation 100 Power Operation

Event Text

HIGH HEAD SAFETY INJECTION INOPERABLE DUE TO VOIDS IDENTIFIED IN PIPING

"At 1540 on 3/25/2010, engineering identified a gas void in the Unit 4 B Cold Leg High Head Safety Injection (HHSI) pipe which exceeded the station's allowable gas accumulation acceptance criteria. This condition rendered the cold leg injection flow path inoperable and required entry into Technical Specification 3.0.3 at 1540. The void was immediately vented and Technical Specification 3.0.3 was exited at 1750."

The licensee notified the NRC Resident Inspector.

To top of page
Power Reactor Event Number: 45792
Facility: SALEM
Region: 1 State: NJ
Unit: [1] [ ] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: GARY MEEKINS
HQ OPS Officer: HOWIE CROUCH
Notification Date: 03/26/2010
Notification Time: 01:02 [ET]
Event Date: 03/25/2010
Event Time: 22:39 [EDT]
Last Update Date: 03/26/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
JOHN CARUSO (R1DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 91 Power Operation 91 Power Operation

Event Text

OFFSITE NOTIFICATION DUE TO PIPING LEAK THAT CANNOT BE CLEANED UP WITHIN 24 HOURS

The licensee made a 15 minute notification to the New Jersey Department of Environmental Protection due to a piping leak that cannot be cleaned up within 24 hours. The leak is on piping from the steam generator blowdown system to the non-radioactive waste bin and is leaking onto the asphalt beneath the piping. The leakage rate was approximately 1/2 gal/minute upon discovery but has since been stopped. The is no known primary to secondary leakage through the steam generator. No contact with the groundwater is suspected. The licensee has taken actions to divert leakage to the waste holdup system.

The licensee will be notifying authorities in the Lower Alloways Creek Township and the NRC Resident Inspector.

To top of page
Power Reactor Event Number: 45793
Facility: PILGRIM
Region: 1 State: MA
Unit: [1] [ ] [ ]
RX Type: [1] GE-3
NRC Notified By: MICHAEL HITTWER
HQ OPS Officer: STEVE SANDIN
Notification Date: 03/26/2010
Notification Time: 03:05 [ET]
Event Date: 03/25/2010
Event Time: 22:55 [EDT]
Last Update Date: 03/26/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
JOHN CARUSO (R1DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation

Event Text

STANDBY GAS TREATMENT DECLARED INOPERABLE AFTER DISCOVERY OF OPEN DEMISTER DOOR

"System Affected: Standby Gas Treatment (SBGT)

"Condition: Demister Door Discovered open rendering both trains of SBGT INOP

"At 2255 [EDT] on 3/25/2010, a Demister Door on 'B' Train of Standby Gas Treatment (SBGT) was found open. The door was closed upon discovery. The door was opened during performance of a scheduled surveillance during the dayshift and it appears that the door was not closed at the completion of work. With this door being open the 'B' Train of SBGT was INOP. Due to the physical configuration of the SBGT System it cannot be immediately verified that the 'A' Train of SBGT would have been able to perform its Safety Related Function since there is a probability that it could have drawn suction through the demister door of the 'B' Train and a normally open crosstie between the Trains. A 10 CFR 50.72 notification is conservatively being made based on the information currently available.

"This condition has no impact on the health and safety of the public.

"Both trains of SBGT are currently operable."

The licensee informed the NRC Resident Inspector.

Page Last Reviewed/Updated Thursday, March 29, 2012
Thursday, March 29, 2012