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Event Notification Report for May 30, 2017

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
05/25/2017 - 05/30/2017

** EVENT NUMBERS **


52766 52771 52772

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Agreement State Event Number: 52766
Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES
Licensee: HERCULES ENGINEERING AND TESTING SERVICES
Region: 4
City: HOUSTON State: TX
County:
License #: N/A
Agreement: Y
Docket:
NRC Notified By: ART TUCKER
HQ OPS Officer: STEVE SANDIN
Notification Date: 05/19/2017
Notification Time: 16:03 [ET]
Event Date: 05/19/2017
Event Time: 14:24 [CDT]
Last Update Date: 05/19/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
GEOFFREY MILLER (R4DO)
NMSS_EVENTS_NOTIFICA (EMAI)

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

Event Text

AGREEMENT STATE REPORT - RECOVERY OF MISSING TROXLER GAUGE

The following report was received as an update from the State of Texas:

"On July 25, 1997, the Agency [Texas Department of State Health Services] was notified by a licensee that a Troxler model 3430 moisture density gauge serial # 24885 had been stolen from the back of a pickup truck. The gauge was not found and the Agency's file was placed in 'Inactive' status. On May 18, 2017, the Agency was contacted by the Federal Bureau of Investigation who reported the gauge had been found in an apartment in Houston, Texas, by the apartment's landlord. The gauge manufacturer was contacted and one of the manufacturer's technician retrieved the gauge and took it to its Houston location. The company that held the license is no longer licensed in the State of Texas. Additional information will be provided as it is received in accordance with SA-300."

Texas Incident #: I-7173

Additional information in NMED Item Number 980180, last updated on 04/16/1998, is as follows:

"The licensee reported the theft of a moisture/density gauge containing a 1.48 GBq (40 mCi) Am-Be source and a 0.296 GBq (10 mCi) Cs-137 source. The gauge was stolen from the back of a pickup truck when the operator stopped by his apartment complex. The lock had been cut from the chain securing the gauge. The licensee notified the local police. The gauge has not been recovered."

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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Power Reactor Event Number: 52771
Facility: COOPER
Region: 4 State: NE
Unit: [1] [ ] [ ]
RX Type: [1] GE-4
NRC Notified By: RANDY KOUBA
HQ OPS Officer: HOWIE CROUCH
Notification Date: 05/26/2017
Notification Time: 12:11 [ET]
Event Date: 05/26/2017
Event Time: 03:21 [CDT]
Last Update Date: 05/26/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
JEREMY GROOM (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

CONTROL ROOM EMERGENCY FILTRATION SYSTEM INOPERABLE

"On May 26, 2017 at 0321 [CDT], Control Room staff questioned air flow and differential pressure in the Main Control Room. The CREFS [control room emergency filtration system] booster fan discharges to the Control Room supply fan suctions. With supply fan flows questionable, reasonable assurance that CREFS would fulfill its safety function could not be established. Engineering confirmed CREFS system flow rate by testing and determined the actual flow was 802 cfm, below the required flow of 810 cfm. Based on this information, CREFS was declared inoperable.

"CREFS is a single train system. Per 10CFR50.72(b)(3)(v)(D), an 8-hour report is required due to the fact that, at the time of discovery, this condition could have prevented the fulfillment of the safety function of an SSC that is required to mitigate the consequences of an accident.

"The NRC Senior Resident Inspector will be informed."

CREFS being out of service places the plant in a 7-day LCO shutdown action statement.

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Power Reactor Event Number: 52772
Facility: SUSQUEHANNA
Region: 1 State: PA
Unit: [ ] [2] [ ]
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: STEVE KOCH
HQ OPS Officer: HOWIE CROUCH
Notification Date: 05/26/2017
Notification Time: 13:22 [ET]
Event Date: 04/02/2017
Event Time: 21:27 [EDT]
Last Update Date: 05/26/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
Person (Organization):
CHRISTOPHER CAHILL (R1DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N N 0 Cold Shutdown 0 Cold Shutdown

Event Text

60-DAY OPTIONAL TELEPHONIC NOTIFICATION OF INVALID SPECIFIED SYSTEM ACTUATION

"This 60-day telephone notification is being made in accordance with the reporting requirements specified by 10 CFR 50.73(a)(2)(iv)(A) and 10 CFR 50.73(a)(1) to describe an invalid actuation of a general containment isolation signal affecting multiple Main Steam Isolation Valves (MSIVs).

"On April 2, 2017 at approximately 2127 Eastern Daylight Time, during performance of a reactor vessel leak check, all four inboard MSIVs closed as a result of actuation of the Main Steam Line (MSL) high flow instrumentation. The high flow signal was spurious on two channels with no flow in the MSLs. Since an actual high flow condition did not exist at the time of the actuation, the actuation was considered invalid. The MSIVs functioned as designed on actuation of the MSL high flow instrumentation. All outboard MSIVs were closed at the time of the actuation.

"The NRC Resident Inspector has been notified."

Page Last Reviewed/Updated Tuesday, May 30, 2017
Tuesday, May 30, 2017