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Event Notification Report for September 11, 2017

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
09/08/2017 - 09/11/2017

** EVENT NUMBERS **


52916 52941 52942 52944 52952 52954 52955 52956 52957 52958 52959 52960

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Agreement State Event Number: 52916
Rep Org: NIST
Licensee: NIST
Region: 1
City: GAITHERSBURG State: MD
County:
License #: SNM-362
Agreement: Y
Docket:
NRC Notified By: MANUEL MEJIAS
HQ OPS Officer: STEVEN VITTO
Notification Date: 08/19/2017
Notification Time: 12:07 [ET]
Event Date: 08/18/2017
Event Time: 14:00 [EDT]
Last Update Date: 09/08/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
30.50(b)(1) - UNPLANNED CONTAMINATION
Person (Organization):
HAROLD GRAY (R1DO)
NMSS_EVENTS_NOTIFICA (EMAI)
TYRONE NAQUIN (PM)

Event Text

UNPLANNED CONTAMINATION EVENT - BROKEN FLAME-SEALED GLASS AMPOULE

"The purpose of this communication is to provide additional details surrounding the circumstances that led to the identification of unplanned contamination in one of the laboratories designated as a restricted area under the US NRC license SNM-362. As indicated verbally during the initial report at 1207 EDT, and required by 10 CFR 30.50(b)(1), this event is described as having a broken flame-sealed glass ampoule that resulted in contamination of the lead-shielding storage area on top of the countertop and other surfaces within room C11 in building 245 of the NIST Gaithersburg, MD campus. This was discovered at approximately 1400 EDT on 8/18/2017.

"The ampoule contained a well-characterized solution of Am-241 with an activity of approximately 47 MBq (most restrictive ALI [Annual Limit on Intake] is 0.006 uCi) and is registered in our database as being in a solution of nitric acid.

"The initial report requirements of 10 CFR 30.50(b)(1)(i) through (iii) are satisfied by the phone notification and supplemented by this communication and attachments. Additional information regarding corrective actions taken and planned, as well as evaluations and/or assessments, will be provided to our Project Manager and Region I in the near future and the required written report will be provided within the required 30 days.

"After reporting event #52916, at the direction of the Radiation Safety Officer and with the support of the NIST Senior Management, multiple efforts will continue to evaluate the extent of the condition and a Stop Work Order will be issued effective today for all other laboratories at NIST Gaithersburg that store similar ampoules until the extent of condition is evaluated and/or mitigated.

"Extensive surveys of the area and air monitoring have confirmed that the contamination is isolated to portions of room C11."

Access has been restricted to room C11.

The licensee notified NRC R1 (Ullrich) and NRC HQ PM (Naquin) regarding this event.

* * * UPDATE FROM MANUEL MEJIAS TO HOWIE CROUCH AT 1209 EDT ON 9/6/17 * * *

The licensee received three bioassay results from personnel exposure to the contaminant. Two of the bioassays were negative. The third bioassay indicated the exposed individual received 9.1 REM whole body with 87 REM to the bone surface of the target organ. Additional bioassays are being performed.

The licensee notified R1 (Ullrich and Jackson) and HQ (Naquin).

Notified R1DO (Dentel), NMSS (Rivera-Capella), and NMSS Events Notification (email).

* * * UPDATE AT 1838 EDT ON 09/08/17 FROM MANUEL MEJIAS TO S. SANDIN * * *

"The purpose of this communication is to provide additional details regarding Event # 52916 as results of radiological surveys, interviews, and bioassays are obtained. As indicated verbally during the NRC Ops Center phone update today at 18:38 EDT, new survey and interviews information have led us to believe that ingestion was a possible pathway for the individual that had a positive bioassay. Given the difference in the intake retention fraction (IRF) for ingestion versus inhalation pathway, we have performed additional calculations of the previous bioassay results. These calculations have identified the potential for a total effective dose equivalent of 25 rem or more.

"Given the potential for dose of 25 rem or more, consultation was done with the REAC/TS team. Additional bioassays and medical evaluation will be performed.

"A courtesy notification was provided earlier today to R1 (Ullrich) and HQ (Naquin)."

Notified R1DO (Dentel), NMSS (Collins) and INES Coordinator (Rivera-Capella), INES National Officer (Milligan) via email.

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Non-Agreement State Event Number: 52941
Rep Org: MICHIGAN DEPARTMENT OF CORRECTIONS
Licensee: MICHIGAN DEPARTMENT OF CORRECTIONS
Region: 3
City: MARQUETTE State: MI
County:
License #: GL
Agreement: N
Docket:
NRC Notified By: GENE WOOD
HQ OPS Officer: DONALD NORWOOD
Notification Date: 08/31/2017
Notification Time: 12:40 [ET]
Event Date: 08/18/2017
Event Time: 14:00 [EDT]
Last Update Date: 08/31/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
Person (Organization):
ANN MARIE STONE (R3DO)
NMSS_EVENTS_NOTIFICA (EMAI)

This material event contains a "Less than Cat 3 " level of radioactive material.

Event Text

STOLEN THEN IMPROPERLY DISPOSED OF TRITIUM EXIT SIGNS

A trustee prisoner was found to have removed 10 tritium 'bulbs' from 10 tritium exit signs at Marquette Branch Prison. The trustee prisoner was using the tritium bulbs as night lights. Eight of the 10 tritium bulbs were recovered. The trustee prisoner admitted to having broken two of the tritium bulbs and then flushed them down a toilet. The activity level of the tritium bulbs is unknown at this time.

The recovered eight tritium bulbs are currently in secure storage. These tritium bulbs will be disposed of by an approved/licensed contractor. The trustee prisoner has been removed from trustee status.

THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL

Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf

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Agreement State Event Number: 52942
Rep Org: CA DEPT OF PUBLIC HEALTH
Licensee: EARTH-STRATA, INC.
Region: 4
City: TEMECULA State: CA
County:
License #: 7612-33
Agreement: Y
Docket:
NRC Notified By: DONALD OESTERLE
HQ OPS Officer: BETHANY CECERE
Notification Date: 08/31/2017
Notification Time: 13:32 [ET]
Event Date: 08/30/2017
Event Time: [PDT]
Last Update Date: 08/31/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
30.50(b)(2) - SAFETY EQUIPMENT FAILURE
Person (Organization):
VINCENT GADDY (R4DO)
NMSS_EVENTS_NOTIFICA (EMAI)

Event Text

AGREEMENT STATE REPORT - DAMAGED MOISTURE/DENSITY GAUGE

The following report was received from the California Department of Public Health, Radiologic Health Branch (CA RHB) by email:

"On August 30, 2017, the President and ARSO of Earth-Strata, Inc., contacted the CA RHB Brea office [at 1415 PDT] to report a moisture/density gauge had been run over by a bulldozer at a construction site in Santa Clarita, CA. The gauge is a CPN MC-3, S/N M36087027 (10 mCi Cs-137, 50 mCi Am:Be-241). [The licensee] stated that the gauge was on the ground with the Cs-137 source in the shielded position when it was struck by the bulldozer. The area around the gauge was isolated until the gauge operator was instructed by [the ARSO] to place the gauge in the transport case for transport to Maurer Technical Services to be inspected and to perform an emergency leak test. [The licensee] stated that the plastic cover of the gauge had been broken and the guide tube and source rod had broken off of the top of the source shield. [The licensee] stated that after the gauge was inspected by Maurer personnel, it was determined that the Cs-137 source remained in the shielded position and the Am:Be-241 source remained intact and was still attached to gauge. Maurer Technical Services will assist in the disposal of the gauge. The investigation will remain open and any citations will be deferred until the licensee provides the 30-day report."

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Non-Agreement State Event Number: 52944
Rep Org: VARIAN MEDICAL SYSTEMS
Licensee: VARIAN MEDICAL SYSTEMS
Region: 1
City: GLENS FALLS State: NY
County:
License #: 45-30957-01
Agreement: Y
Docket:
NRC Notified By: KATHARINE ARZATE
HQ OPS Officer: DONALD NORWOOD
Notification Date: 09/01/2017
Notification Time: 13:30 [ET]
Event Date: 08/30/2017
Event Time: [EDT]
Last Update Date: 09/08/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
Person (Organization):
JON LILLIENDAHL (R1DO)
NMSS_EVENTS_NOTIFICA (EMAI)
CNSC (CANADA) (FAX)

This material event contains a "Category 3 " level of radioactive material.

Event Text

IRIDIUM-192 SOURCE LOST DURING SHIPMENT

A 3.792 Curie Ir-192 source was removed from a Varian High Dose Rate afterloader and prepared for shipment by common carrier. The packaged source was picked up from Glens Falls Hospital in Glens Falls, New York by a representative of the common carrier on August 21, 2017. The destination of the source was to Alpha-Omega Services in Vinton, Louisiana for disposal. The source arrived at the common carrier's local station in Manands, New York on August 22, 2017. When the licensee checked package tracking information on August 30, 2016, the licensee noted that the package indicated that it was still at the common carrier's local station.

The licensee attempted to contact the common carrier on August 30, 2017 without success. The licensee successfully contacted the common carrier on August 31, 2017 and the common carrier initiated a 'station trace' at that time. At the present time the source has not been located. The common carrier is still searching.

* * * UPDATE ON 9/8/17 AT 1531 EDT FROM KATHARINE ARZATE TO DONG PARK * * *

The Ir-192 source was located by the common carrier at 1837 PDT on 9/1/17. The package was delivered to the recipient on 8/29/17.

Notified R1DO (Dentel), NMSS Events Notification, and Canada.

THIS MATERIAL EVENT CONTAINS A "CATEGORY 3" LEVEL OF RADIOACTIVE MATERIAL

Category 3 sources, if not safely managed or securely protected, could cause permanent injury to a person who handled them, or were otherwise in contact with them, for some hours. It could possibly - although it is unlikely - be fatal to be close to this amount of unshielded radioactive material for a period of days to weeks. These sources are typically used in practices such as fixed industrial gauges involving high activity sources (for example: level gauges, dredger gauges, conveyor gauges and spinning pipe gauges) and well logging. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf

Note: This device is assigned an IAEA Category 3 value based on the actual radioactivity of the source, not on the device type. (Reference IAEA RG-G-1.9)

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Power Reactor Event Number: 52952
Facility: TURKEY POINT
Region: 2 State: FL
Unit: [3] [4] [ ]
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: TIM JONES
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 09/08/2017
Notification Time: 00:06 [ET]
Event Date: 09/07/2017
Event Time: 23:14 [EDT]
Last Update Date: 09/08/2017
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
ERIC MICHEL (R2DO)
JEFFERY GRANT (IRD)
CATHERINE HANEY (R2RA)
BRIAN HOLIAN (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
4 N Y 100 Power Operation 100 Power Operation

Event Text

NOTIFICATION OF UNUSUAL EVENT - HURRICANE WARNING

"At 2300 today, the National Weather Service issued a hurricane warning for the area including Turkey Point Nuclear Units 3 & 4. On that basis, a Notice of Unusual Event was declared at 2314 [EDT]. In anticipation of severe weather, the site has completed proceduralized high wind preparations. Our plants have been specifically built to withstand natural disasters such as hurricanes, tornadoes, earthquakes, flooding and tidal surges. This approach will ensure the safety of operations and our employees and the communities surrounding our plants.

"Both units are currently stable at 100% power level.

"The NRC Resident Inspector has been informed."

No safety systems are out of service. The electrical grid is stable but grid risk is high.

Notified DHS, FEMA, NICC, and NNSA (e-mail).

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Power Reactor Event Number: 52954
Facility: OYSTER CREEK
Region: 1 State: NJ
Unit: [1] [ ] [ ]
RX Type: [1] GE-2
NRC Notified By: JOHN DEVENNEY
HQ OPS Officer: DONG HWA PARK
Notification Date: 09/08/2017
Notification Time: 12:49 [ET]
Event Date: 09/07/2017
Event Time: 15:07 [EDT]
Last Update Date: 09/08/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
26.719 - FITNESS FOR DUTY
Person (Organization):
GLENN DENTEL (R1DO)
FFD GROUP (EMAI)

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

FITNESS FOR DUTY - CONFIRMED POSITIVE FFD TEST

"A non-licensed employee supervisor had a confirmed positive for a prohibited substance during a random fitness-for-duty [FFD] test. The individual's unescorted access to the plant has been removed. The licensee has notified the NRC Resident Inspector."

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Power Reactor Event Number: 52955
Facility: QUAD CITIES
Region: 3 State: IL
Unit: [ ] [2] [ ]
RX Type: [1] GE-3,[2] GE-3
NRC Notified By: CRAIG VROMAN
HQ OPS Officer: STEVE SANDIN
Notification Date: 09/08/2017
Notification Time: 16:45 [ET]
Event Date: 09/08/2017
Event Time: 11:30 [CDT]
Last Update Date: 09/08/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
ANN MARIE STONE (R3DO)

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

Event Text

HPCI SYSTEM INOPERABLE

"On September 8, 2017 at 1130 hours CDT, Unit Two High Pressure Coolant Injection (HPCI) Minimum Flow Valve MO 2-2301-14 flow indicating switch (FIS 2-2354) failed to meet the Technical Specification Allowable Value during calibration testing. Technical Specification Table 3.3.5.1-1 Allowable Value (3.f) requires greater than or equal to 634 gpm (3.14 inches water column as required by procedure). HPCI was subsequently declared inoperable.

"This event is being reported as a condition that could have prevented fulfillment of a safety function in accordance with 10CFR50.72(b)(3)(v)(D). The HPCI system is a single train system and the loss of HPCI could impact the plant's ability to mitigate the consequences of an accident. The Reactor Core Isolation Cooling (RCIC) system was confirmed operable.

"Note: On September 8, 2017 at 1140 hours CDT, the HPCI Minimum Flow Valve MO 2-2301-14 flow indicating switch (FIS 2- 2354) was successfully recalibrated and HPCI was returned to Operable status.

"The NRC Senior Resident Inspector has been notified."

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Power Reactor Event Number: 52956
Facility: SAINT LUCIE
Region: 2 State: FL
Unit: [1] [2] [ ]
RX Type: [1] CE,[2] CE
NRC Notified By: DALE THOMAS
HQ OPS Officer: STEVE SANDIN
Notification Date: 09/08/2017
Notification Time: 17:51 [ET]
Event Date: 09/08/2017
Event Time: 17:14 [EDT]
Last Update Date: 09/10/2017
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
ERIC MICHEL (R2DO)
BRIAN McDERMOTT (NRR)
LAURA DUDES (R2 D)
JEFFERY GRANT (IRD)

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

Event Text

NOTIFICATION OF UNUSUAL EVENT - HURRICANE WARNING

"At time 1700 [EDT] today, the National Weather Service issued a Hurricane Warning for the area including the St. Lucie Nuclear Power Plant. On that basis, a Notice of Unusual Event was declared at time 1714 [EDT]. In anticipation of severe weather, the site has completed proceduralized high wind preparations.

"Both units are currently stable at 100% power."

The licensee notified both State and local agencies and has informed the NRC Resident Inspector.

No safety-related systems are out of service. The electrical grid is stable.

Notified DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).

* * * UPDATE ON 9/9/17 AT 1743 EDT FROM DALE THOMAS TO S. SANDIN * * *

"At 1701 [EDT] today (09/09/17), a 24-hour update was made to state and local governments following the National Weather Service issuing yesterday's hurricane warning for the area including St. Lucie Plant. On that basis, a Notice of Unusual Event was declared yesterday (09/08/17) at 1714 [EDT]. There are no changes in plant status for either Unit.

"In anticipation of severe weather, the site previously completed high wind preparations. Our plants have been specifically built to withstand natural disasters such as hurricanes, tornadoes, earthquakes, flooding and tidal surges. This approach will ensure the safety of operations and our employees and the communities surrounding our plants.

"Both units are currently stable at 100% power level and will remain at that power since hurricane force winds are not currently projected to reach St. Lucie Plant.

"The NRC Resident Inspector has been informed."

Notified R2DO (Michel).

* * * UPDATE ON 9/10/17 AT 1730 EDT FROM DALE THOMAS TO DONG PARK * * *

"At 1648 [EDT] today (09/10/17), a 24-hour update was made to state and local governments following the National Weather Service issuing Friday's hurricane warning for the area including St. Lucie Plant. On that basis, a Notice of Unusual Event was declared yesterday (09/08/17) at 1714 [EDT]. There are no changes in plant status for either Unit.

"In anticipation of severe weather, the site previously completed high wind preparations. Our plants have been specifically built to withstand natural disasters such as hurricanes, tornadoes, earthquakes, flooding and tidal surges. This approach will ensure the safety of operations and our employees and the communities surrounding our plants.

"Both units are currently stable at 100% power level and will remain at that power since hurricane force winds are not currently projected to reach St. Lucie Plant.

"The NRC Resident Inspector has been informed."

Notified R2IRC (Franke).

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Power Reactor Event Number: 52957
Facility: CRYSTAL RIVER
Region: 1 State: FL
Unit: [3] [ ] [ ]
RX Type: [3] B&W-L-LP
NRC Notified By: JOHN JERNIGAN
HQ OPS Officer: STEVE SANDIN
Notification Date: 09/09/2017
Notification Time: 11:50 [ET]
Event Date: 09/09/2017
Event Time: 11:09 [EDT]
Last Update Date: 09/09/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
OTHER UNSPEC REQMNT
Person (Organization):
GLENN DENTEL (R1DO)
SCOTT MOORE (NMSS)
NMSS_EVENTS_NOTIFICA (EMAI)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
3 N N 0 Defueled 0 Defueled

Event Text

HURRICANE WARNING ISSUED AFFECTING SITE WITHIN 36 HOURS

Crystal River Unit 3 is currently undergoing decommissioning and is permanently shut down.

The licensee entered their adverse weather procedure EM-220D based on a Hurricane Warning affecting the site within 36 hours. All applicable sections of EM-220D are complete or in progress.

No fuel movement activities are in progress. All equipment including Emergency Diesel Generators (EDGS) is available to perform required spent fuel cooling.

The licensee will inform the NRC Region I Office.

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Power Reactor Event Number: 52958
Facility: FERMI
Region: 3 State: MI
Unit: [2] [ ] [ ]
RX Type: [2] GE-4
NRC Notified By: GREG MILLER
HQ OPS Officer: STEVE SANDIN
Notification Date: 09/09/2017
Notification Time: 15:04 [ET]
Event Date: 09/09/2017
Event Time: 10:00 [EDT]
Last Update Date: 09/09/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
ANN MARIE STONE (R3DO)

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

Event Text

MECHANICAL DRAFT COOLING TOWER FANS DECLARED INOPERABLE

"At 1000 EDT on September 9, 2017, the Division 2 Mechanical Draft Cooling Tower (MDCT) fans were declared inoperable due to failure of the over speed fan brake inverter. The brakes prevent fan over speed from a design basis tornado. The MDCT fans are required to support operability of the Ultimate Heat Sink (UHS). The UHS is required to support operability of the Division 2 Emergency Equipment Cooling Water (EECW) system. The EECW system cools various safety related components, including the High Pressure Coolant Injection (HPCI) system room cooler. An unplanned HPCI inoperability occurred based on a loss of the HPCI Room Cooler. Investigation into why the Division 2 MDCT fan over speed brake inverter failed is in progress. This report is being made pursuant to 10CFR50.72(b)(3)(v)(D) as a condition that at the time of discovery could have prevented the fulfillment of a safety function needed to mitigate the consequences of an accident based on a loss of a single train safety system."

The licensee entered two (2) LCO Action Statements (AS); 14-day LCO AS 3.5.1 for ECCS (HPCI Inoperable) and 72-hour AS 3.7.2 for UHS. The licensee has two spare inverters on-site. After replacement and successful post-maintenance testing the licensee expects to exit both AS before 72-hours.

The NRC Resident Inspector has been notified.

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Power Reactor Event Number: 52959
Facility: BROWNS FERRY
Region: 2 State: AL
Unit: [1] [2] [3]
RX Type: [1] GE-4,[2] GE-4,[3] GE-4
NRC Notified By: ANTHONY ALSUP
HQ OPS Officer: STEVE SANDIN
Notification Date: 09/10/2017
Notification Time: 20:45 [ET]
Event Date: 09/10/2017
Event Time: 11:51 [CDT]
Last Update Date: 09/10/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(A) - POT UNABLE TO SAFE SD
50.72(b)(3)(v)(B) - POT RHR INOP
50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
ERIC MICHEL (R2DO)

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

Event Text

TWO CONTROL BAY CHILLERS DECLARED INOPERABLE

"At 1151 [CDT] on September 10, 2017 Browns Ferry Units 1 and 2 declared 'B' Control Bay chiller inoperable. 'A' Control Bay chiller was previously declared inoperable. This resulted in inoperability of the equipment in the U1 and U2 4kV Shutdown Board Rooms. The declarations of the equipment in the Shutdown Board Rooms is a loss of safely function for electrical components (4kv Shutdown Boards and 480V Shutdown Boards) required for shut down of the U1 and U2 reactors and maintaining them in a safe shutdown condition, as well as RHR capability and Accident Mitigation.

"lnoperability of these boards also requires declaring two trains of Standby Gas Treatment inoperable resulting in a loss of safety function for Units 1, 2 and 3 for systems needed to control the release of radioactive material. This event requires an 8 hour report IAW 50.72(b)(3)(v), 'Any event or condition that could have prevented the fulfillment of the safety function of structures or systems that are needed to (A) Shut down the reactor and maintain it in a safe shutdown condition; (B) Remove residual heat; (C) Control the release of radioactive material; or (D) Mitigate the consequences of an accident."

The NRC Resident Inspector has been notified.

CR 1336821 was initiated in the Browns Ferry Corrective Action Program.

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Power Reactor Event Number: 52960
Facility: TURKEY POINT
Region: 2 State: FL
Unit: [ ] [4] [ ]
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: TIM JONES
HQ OPS Officer: STEVE SANDIN
Notification Date: 09/10/2017
Notification Time: 22:20 [ET]
Event Date: 09/10/2017
Event Time: 18:55 [EDT]
Last Update Date: 09/10/2017
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
Person (Organization):
ERIC MICHEL (R2DO)
GERALD McCOY (R2 I)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
4 M/R Y 88 Power Operation 0 Hot Standby

Event Text

MANUAL REACTOR TRIP ON LOWERING STEAM GENERATOR WATER LEVEL

"On 09/10/17 at 1855 [EDT], [Turkey Point] Unit 4 reactor was manually tripped from 88% RTP [Rated Thermal Power] due to a failure of 4C Steam Generator main feed regulating valve causing lowering S/G [Steam Generator] level. All other systems operated normally. Auxiliary Feed Water initiated as designed to provide S/G water level control. EOP's [Emergency Operating Procedures] have been exited and General Operating procedures (GOP'S) were entered. Unit 4 is stable in Mode 3 at NOT/NOP [Normal Operating Temperature/Normal Operating Pressure]."

The licensee is investigating the failure of the feed regulating valve. Offsite power is available. Decay heat is being removed via main feedwater with steam discharged to atmosphere using the ADVs [Atmospheric Dump Valves]. There is no known primary-secondary steam generator tube leakage.

The licensee informed the NRC Resident Inspector.

Page Last Reviewed/Updated Monday, September 11, 2017
Monday, September 11, 2017