Event Notification Report for August 11, 2014
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
08/10/2014 - 08/11/2014
Power Reactor
Event Number: 50354
Facility: TURKEY POINT
Region: 2 State: FL
Unit: [3] [] []
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: MICHAEL COEN
HQ OPS Officer: JOHN SHOEMAKER
Region: 2 State: FL
Unit: [3] [] []
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: MICHAEL COEN
HQ OPS Officer: JOHN SHOEMAKER
Notification Date: 08/11/2014
Notification Time: 14:20 [ET]
Event Date: 08/11/2014
Event Time: 10:20 [EDT]
Last Update Date: 08/11/2014
Notification Time: 14:20 [ET]
Event Date: 08/11/2014
Event Time: 10:20 [EDT]
Last Update Date: 08/11/2014
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
REBECCA NEASE (R2DO)
REBECCA NEASE (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 3 | A/R | Y | 100 | Power Operation | 0 | Hot Standby |
MANUAL REACTOR TRIP ON LOSS OF INSTRUMENT AIR FOLLOWED BY SAFETY INJECTION
"This is an non-emergency notification to the NRCOC [Nuclear Regulatory Commission Operations Center] in accordance with 10 CFR 50.72(b)(2)(iv)(B) for a valid actuation of the reactor protection system (RPS) (four hour notification) and 10 CFR 50.72(b)(3)(iv)(A) for a valid Engineered Safeguards (ESF) actuation (eight hour notification) due to auxiliary feedwater (AFW) initiation , safety injection (SI) initiation, and emergency diesel generator (EDG) auto start.
"On 8/11/14 at 1028 EDT, Unit 3 experienced a manual reactor trip due to a loss of instrument air. Auxiliary feed water automatically initiated as expected. Unit 3 is currently in Mode 3 and stable. Instrument air has been restored.
"At 1305 a safety injection signal [SI] occurred due to main steamline high differential pressure during a plant cooldown to 470 degrees Fahrenheit. High head safety injection (HHSI) pump, residual heat removal (RHR) pumps, and emergency diesel generators (EDGs) auto started as expected due to the safety injection signal. Based on plant conditions, the HHSI and RHR pumps did not inject into the reactor coolant system."
The plant was stabilized after the reactor trip, however, the loss of instrument air resulted in a loss of letdown and PZR level continued to slowly increase to approximately 91%. All rods fully inserted and normal offsite power was maintained.
Operators initiated a plant cooldown to stabilize and lower PZR level using the S/G atmospheric steam dumps. Unequal opening of the S/G atmospheric steam dumps caused the SI to occur due to main steamline high differential pressure. No RCS injection occurred and all SI equipment operated as expected and has been subsequently secured. Unit 3 is stable in mode 3 at 490 degrees Fahrenheit and RCS pressure is 1940 psig. There was no effect on Unit 4 which continues to operate at 100% power. The loss of instrument air is being investigated.
The licensee has notified the NRC Resident Inspector.
"This is an non-emergency notification to the NRCOC [Nuclear Regulatory Commission Operations Center] in accordance with 10 CFR 50.72(b)(2)(iv)(B) for a valid actuation of the reactor protection system (RPS) (four hour notification) and 10 CFR 50.72(b)(3)(iv)(A) for a valid Engineered Safeguards (ESF) actuation (eight hour notification) due to auxiliary feedwater (AFW) initiation , safety injection (SI) initiation, and emergency diesel generator (EDG) auto start.
"On 8/11/14 at 1028 EDT, Unit 3 experienced a manual reactor trip due to a loss of instrument air. Auxiliary feed water automatically initiated as expected. Unit 3 is currently in Mode 3 and stable. Instrument air has been restored.
"At 1305 a safety injection signal [SI] occurred due to main steamline high differential pressure during a plant cooldown to 470 degrees Fahrenheit. High head safety injection (HHSI) pump, residual heat removal (RHR) pumps, and emergency diesel generators (EDGs) auto started as expected due to the safety injection signal. Based on plant conditions, the HHSI and RHR pumps did not inject into the reactor coolant system."
The plant was stabilized after the reactor trip, however, the loss of instrument air resulted in a loss of letdown and PZR level continued to slowly increase to approximately 91%. All rods fully inserted and normal offsite power was maintained.
Operators initiated a plant cooldown to stabilize and lower PZR level using the S/G atmospheric steam dumps. Unequal opening of the S/G atmospheric steam dumps caused the SI to occur due to main steamline high differential pressure. No RCS injection occurred and all SI equipment operated as expected and has been subsequently secured. Unit 3 is stable in mode 3 at 490 degrees Fahrenheit and RCS pressure is 1940 psig. There was no effect on Unit 4 which continues to operate at 100% power. The loss of instrument air is being investigated.
The licensee has notified the NRC Resident Inspector.
Agreement State
Event Number: 50367
Rep Org: MA RADIATION CONTROL PROGRAM
Licensee: THERMO SCIENTIFIC - PORTABLE SCIENTIFIC INSTRUMENTS
Region: 1
City: TEWKSBURY State: MA
County:
License #: 55-0238
Agreement: Y
Docket:
NRC Notified By: DOUG CULLEN
HQ OPS Officer: CHARLES TEAL
Licensee: THERMO SCIENTIFIC - PORTABLE SCIENTIFIC INSTRUMENTS
Region: 1
City: TEWKSBURY State: MA
County:
License #: 55-0238
Agreement: Y
Docket:
NRC Notified By: DOUG CULLEN
HQ OPS Officer: CHARLES TEAL
Notification Date: 08/14/2014
Notification Time: 14:16 [ET]
Event Date: 08/11/2014
Event Time: 00:00 [EDT]
Last Update Date: 08/14/2014
Notification Time: 14:16 [ET]
Event Date: 08/11/2014
Event Time: 00:00 [EDT]
Last Update Date: 08/14/2014
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
SILAS KENNEDY (R1DO)
FSME EVENT RESOURCE (EMAI)
SILAS KENNEDY (R1DO)
FSME EVENT RESOURCE (EMAI)
AGREEMENT STATE REPORT - LEAKING SEALED SOURCE
The following was received from the State of Massachusetts via email:
"Thermo Scientific received a total of 15 sealed sources, Model XFB-3, manufactured by Eckert & Ziegler Isotope Products, containing Cd-109, each with an activity of 40 mCi. As part of Thermo's inspection protocol, individual sealed sources were leak tested, and one source, serial number TR3042 tested greater than the leak test limit of 0.005 microcuries.
"Following the initial leak test, two additional leak test measurements were made and all three measurements were found to be in excess of the 0.005 microcurie limit, with measurements ranging from 0.0126 to 0.0184 microcuries.
"Eckert and Ziegler was notified immediately by Thermo Scientific, a return authorization was provided, and Thermo returned the sealed source via [common carrier] to Eckert and Ziegler on 08/11/14.
"The licensee reports that the area where the leaks tests were obtained was surveyed thoroughly and no contamination was found.
"The Agency [State of Massachusetts] considers this event open."
MA Docket #: 20-1427
The following was received from the State of Massachusetts via email:
"Thermo Scientific received a total of 15 sealed sources, Model XFB-3, manufactured by Eckert & Ziegler Isotope Products, containing Cd-109, each with an activity of 40 mCi. As part of Thermo's inspection protocol, individual sealed sources were leak tested, and one source, serial number TR3042 tested greater than the leak test limit of 0.005 microcuries.
"Following the initial leak test, two additional leak test measurements were made and all three measurements were found to be in excess of the 0.005 microcurie limit, with measurements ranging from 0.0126 to 0.0184 microcuries.
"Eckert and Ziegler was notified immediately by Thermo Scientific, a return authorization was provided, and Thermo returned the sealed source via [common carrier] to Eckert and Ziegler on 08/11/14.
"The licensee reports that the area where the leaks tests were obtained was surveyed thoroughly and no contamination was found.
"The Agency [State of Massachusetts] considers this event open."
MA Docket #: 20-1427