| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
11/04/2015 - 11/05/2015 ** EVENT NUMBERS ** |
 | !!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!! | | Power Reactor | Event Number: 51429 | Facility: PRAIRIE ISLAND
Region: 3 State: MN
Unit: [1] [ ] [ ]
RX Type: [1] W-2-LP,[2] W-2-LP
NRC Notified By: MARK LOOSBROCK
HQ OPS Officer: HOWIE CROUCH | Notification Date: 09/28/2015
Notification Time: 21:54 [ET]
Event Date: 09/28/2015
Event Time: 13:27 [CDT]
Last Update Date: 11/04/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
| Person (Organization):
STEVE ORTH (R3DO)
|
| 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 BOTH UNIT 1 EMERGENCY DIESEL GENERATORS INOPERABLE AT THE SAME TIME
"At approximately 1327 CDT on September 28, 2015, both D1 and D2 Diesel Generators (EDG) were inoperable simultaneously until corrected at 1345 CDT. The D2 Diesel Generator had been declared inoperable for the planned performance of SP1307, D2 Diesel Generator 6 Month Fast Start Test. Tech Spec LCO 3.8.1 Condition B had been entered for D2 Diesel Generator. Subsequently, D1 Diesel Generator was determined to be inoperable but available due to Train A Cooling Water Header being inoperable during post maintenance testing of SV-33133, Backwash Water Supply to the 121 Safeguards Traveling Screen. Tech Spec LCO 3.7.8 Condition B was entered for the Cooling Water Header inoperability, which forced a cascade to Tech Spec 3.8.1 Condition B for D1 Diesel Generator. With both Emergency Diesel Generators inoperable, Tech Spec 3.8.1 Condition E was entered, which required the restoration of one Emergency Diesel Generator to operable status within 2 hours. D2 was returned to operable status through completion of SP 1307, and Tech Spec 3.8.1 Condition E was exited at 1345 CDT.
"With both Emergency Diesel Generators inoperable, this condition is reportable under 10 CFR 50.72 (b)(3)(v)(D), Event or Condition that Could Have Prevented Fulfillment of a Safety Function.
"The plant remains safe, and this condition does not pose any additional risk to the public. Additionally, our defense in depth strategies are relied upon to take actions to protect the health and safety of the public. D2 Diesel Generator remained available with full cooling water flow during this time. The safety significance of this event is low, as engineering hydraulic analysis has demonstrated that with the safeguards traveling screen backwash water supply valve fully opened, the Cooling Water System would have continued to provide full cooling flow to the D1 Diesel Generator.
"The licensee has notified the NRC Resident Inspector."
* * * RETRACTION ON 11/4/15 AT 1510 EST FROM NATHAN BIBUS TO DONG PARK * * *
"An evaluation has been performed and it has been determined that SV-33133 and SV-33134 do not have an active close safety function. The Cooling Water System analysis of record, calculation ENG-ME-820, Rev 0B shows that the Cooling Water System continues to have flow margin with screen wash control valves SV-33133 and SV-33134 open.
"Therefore, there is no need for the valves to close to ensure the Cooling Water System's safety function. Because the valves do not have a safety function to close, this event was not an event or condition which could have prevented the fulfillment of a safety function of an SSC [structures, systems and components] required to mitigate the consequences of an accident and, therefore, did not require an 8 hour notification in accordance with 10 CFR 50.72(b)(3)(v)(D) for an event or condition that could have prevented fulfillment of a safety function (i.e., accident mitigation) under 10 CFR 50.72(b)(3)(v)(D). The notification is hereby retracted.
"The licensee has notified the NRC Resident Inspector."
Notified R3DO (Orlikowski). |
| Non-Agreement State | Event Number: 51500 | Rep Org: ACUREN INSPECTION - WIT PIPELINE
Licensee: ACUREN INSPECTION - WIT PIPELINE INSPECTION
Region: 4
City: LA PORTE State: TX
County:
License #: 42-27593-01
Agreement: Y
Docket:
NRC Notified By: DOUGLAS WEISS
HQ OPS Officer: JEFF ROTTON | Notification Date: 10/27/2015
Notification Time: 07:07 [ET]
Event Date: 06/18/2015
Event Time: 23:30 [CDT]
Last Update Date: 10/27/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
37.57(a) - ACT/ATTEMPT THEFT CAT 1/2 RAD MATL
| Person (Organization):
CHRISTOPHER CAHILL (R1DO)
NEIL OKEEFE (R4DO)
NMSS_EVENTS_NOTIFIC (EMAI)
| Event Text ATTEMPTED FORCED ENTRY TO RADIOGRAPHY DARKROOM TRUCK
"On June 18th 2015 at approximately 1130 EDT while parked at a Hawthorn Suites in Meriden, Ct., an attempted breech of a darkroom containing a Sentinel Delta 880 Device Serial # D3582, with a model A424-9 Ir-192 source serial #17586G (100 curies). Operator 1 and Operator 2 were sitting on the back patio of the hotel when they heard the alarm chirp twice on a darkroom unit. Operator 1 ran to the unit to make sure everything was okay. When he got to the side of the darkroom he looked around the back and saw a black male standing on the bumper of unit # 1620 [truck] trying to break in with a screw driver. Operator 1 yelled for Operator 2 that someone was trying to break into the darkroom. The burglar was scared off, then the burglar came back to retrieve his budget rental van and he sped off. The Meriden Police Department was immediately contacted and dispatched to the scene, Officer took all statements and the police report # 15-004841 was filed. Unit was checked to make sure that security of all locks and that the alarm system was still operable.
"(RSO) was made aware of this attempted breech on 10/26/2015 at 5:03 pm by NRC auditor." |
| Power Reactor | Event Number: 51513 | Facility: MILLSTONE
Region: 1 State: CT
Unit: [ ] [ ] [3]
RX Type: [1] GE-3,[2] CE,[3] W-4-LP
NRC Notified By: MIKE GOBELI
HQ OPS Officer: DONG HWA PARK | Notification Date: 11/04/2015
Notification Time: 11:56 [ET]
Event Date: 11/04/2015
Event Time: 11:33 [EST]
Last Update Date: 11/04/2015 | Emergency Class: ALERT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
| Person (Organization):
JOHN ROGGE (R1DO)
SCOTT MORRIS (NRR)
JEFFERY GRANT (IRD)
DAVID LEW (R1RA)
MICHELLE EVANS (NRR)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 3 | N | Y | 100 | Power Operation | 100 | Power Operation | Event Text FIRE ON THE 'A' EMERGENCY DIESEL GENERATOR
At 1133 EST on 11/4/15, an Alert was declared due to a fire in the 'A' Emergency Diesel Generator (EDG) enclosure. Fire caused damage to the safety related EDG and was declared inoperable. The fire is out, and off-site assistance was not necessary. A fire watch has been stationed, and no personnel injuries were reported.
The licensee has notified the NRC Resident Inspector.
Notified DHS, FEMA, USDA, HHS, DOE, DHS NICC, EPA EOC, FEMA NWC (via email), FDA EOC (via email) and Nuclear SSA (via email).
* * * UPDATE ON 11/4/15 AT 1449 EST FROM HERB SEARLE TO DONG PARK * * *
At 1446 EST on 11/4/15, Millstone Unit 3 terminated the Alert declaration following satisfactory atmospheric samples at the site boundary and notifying the State of Connecticut.
The licensee will notify the NRC Resident Inspector. Notified R1DO (Rogge), NRR EO (Morris), and IRD (Grant).
Notified DHS, FEMA, USDA, HHS, DOE, DHS NICC, EPA EOC, FEMA NWC (via email), FDA EOC (via email) and Nuclear SSA (via email). |
| Independent Spent Fuel Storage Installation | Event Number: 51514 | Rep Org: ZION
Licensee: EXELON GENERATION COMPANY, LLC
Region: 3
City: ZION State: IL
County: LAKE
License #: GL
Agreement: Y
Docket: 05000295
NRC Notified By: ANTHONY MARTIN
HQ OPS Officer: DONG HWA PARK | Notification Date: 11/04/2015
Notification Time: 18:28 [ET]
Event Date: 11/04/2015
Event Time: 16:20 [CDT]
Last Update Date: 11/04/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
| Person (Organization):
ROBERT ORLIKOWSKI (R3DO)
| Event Text OFFSITE NOTIFICATION MADE DUE TO TRANSFORMER LEAK
"Discovery of a PCB [Polychlorinated Biphenyls] leak on a 440 gallon deenergized transformer. Leak was approximately 0.5 gallons (3-5 lbs of PCB). [The leak was] contained onsite within unit 2, 617 turbine building. Contractor clean-up [is] enroute. No personnel injury or exposure. No offsite release.
"[The licensee] contacted IEMA [Illinois Emergency Management Agency], National Response Center, and the local emergency planning center."
The licensee has notified the NRC Inspector. Notified FEMA, USDA, HHS, DOE, and EPA EOC. |
| Power Reactor | Event Number: 51515 | Facility: TURKEY POINT
Region: 2 State: FL
Unit: [ ] [4] [ ]
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: DIRK DRINKARD
HQ OPS Officer: JEFF ROTTON | Notification Date: 11/05/2015
Notification Time: 00:49 [ET]
Event Date: 11/04/2015
Event Time: 21:12 [EST]
Last Update Date: 11/05/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
INFORMATION ONLY
| Person (Organization):
BINOY DESAI (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 INFORMATION ONLY - UNIT 4 TECHNICAL SPECIFICATION ENTRY DUE TO LOSS OF UNIT 3 STARTUP TRANSFORMER DURING UNIT 3 OUTAGE
"This is a non-emergency, information only notification to the NRCOC. Plant conditions are as follows: Unit 3 is de-fueled and Unit 4 is in Mode 1 [At 100 percent power]. The Unit 3 Startup transformer is INOPERABLE due to preplanned maintenance. The 3B Emergency Diesel Generator (EDG) became INOPERABLE due to Loss of all 480V Vital AC load centers on Unit 3.
"With Unit 4 in Mode 1, Technical Specification[TS] 3.8.1.1.c requires a 4 hour report to the NRC due to inoperability of 1 of 3 required EDGs on site concurrent with inoperability of a required Startup transformer. This report is for informational purposes only and is not required by 10CFR50.72/73.
"Spent Fuel Pool Cooling at Unit 3 remains available via 3B SFP Cooling Pump which is powered from Unit 4."
The loss of the Unit 3 480V AC load centers is still under investigation. TS 3.8.1.1.c requires Unit 4 to exit the TS action statement in 2 hours or shutdown. To exit this TS, no two battery chargers must not be powered from the same motor control center. The 480V Vital AC load centers for Unit 3 must be restored since Unit 4 requires at least one train from Unit 3 480V AC load centers. The licensee is in the process of performing those actions.
The licensee notified the NRC Resident Inspector. | |