Event Notification Report for January 13, 2020

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
1/10/2020 - 1/13/2020

** EVENT NUMBERS **

!!!!! THIS EVENT HAS BEEN RETRACTED.THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor	Event Number: 54403
Facility: CLINTON Region: 3 State: IL Unit: [1] [] [] RX Type: [1] GE-6 NRC Notified By: ALLEN BRAND HQ OPS Officer: BRIAN LIN	Notification Date: 11/21/2019 Notification Time: 21:11 [ET] Event Date: 11/21/2019 Event Time: 12:25 [CST] Last Update Date: 01/10/2020
Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(3)(v)(D) - ACCIDENT MITIGATION	Person (Organization): JAMNES CAMERON (R3DO)

Unit

SCRAM Code

RX Crit

Initial PWR

Initial RX Mode

Current PWR

Current RX Mode

Power Operation

Event Text

EN Revision Imported Date : 1/13/2020

EN Revision Text: UNIT 1 HIGH PRESSURE CORE SPRAY INOPERABLE

"On 11/21/2019, at 1225 CST, as a result of Division 4 DC bus voltage oscillations, bus voltage lowered to less than the required improved technical specification (ITS) voltage of 127.6 VDC. This resulted in declaring High Pressure Core Spray (HPCS) system inoperable per technical specification LCO 3.8.4 and 3.8.9 actions. Division 4 DC bus voltage was restored to greater than 127.6 VDC at 1227 CST. The HPCS system remains inoperable due to Division 4 DC battery charger inoperability.

"Since HPCS is an emergency core cooling system and is a single train safety system, this condition is reportable under 10 CFR 50.72(b)(3)(v)(D).

"The NRC Resident Inspector has been notified."

Clinton Power Station has implemented required compensatory actions due to the Division 4 DC battery charger and HPCS remaining inoperable.

* * * RETRACTION ON 1/10/20 AT 1145 EST FROM JACOB HENRY TO KARL DIEDERICH * * *

"The purpose of this notification is to retract a previous report made on 11/21/2019 (EN 54403) under 10 CFR 50.72(b)(3)(v)(D). Subsequent to the initial notification, the event and the NRC guidance in NUREG-1022 pertaining to 10 CFR 50.72(b)(3)(v)(D) were reviewed further. The evaluation determined that the Division 4 DC bus voltage oscillations were caused by a degraded but operable charger. The Division 4 battery remained fully charged during the event and its operability was not impacted. Therefore, the HPCS system remained Operable.

"Under these circumstances, this event does not represent an inoperability of an accident mitigation system under 10 CFR 50.72(b)(3)(v)(D). Therefore, EN 54403 is retracted.

"The NRC Resident Inspector has been notified."

Notified R3DO (Hanna).

Non-Agreement State	Event Number: 54461
Rep Org: ALLIANCE HEALTH SERVICES Licensee: ALLIANCE HEALTH SERVICES Region: 1 City: BECKLEY State: WV County: License #: 47-25570 Agreement: N Docket: NRC Notified By: KAY KASSEL HQ OPS Officer: CATY NOLAN	Notification Date: 01/02/2020 Notification Time: 13:47 [ET] Event Date: 01/02/2020 Event Time: 07:00 [EST] Last Update Date: 01/02/2020
Emergency Class: NON EMERGENCY 10 CFR Section: 30.50(b)(1) - UNPLANNED CONTAMINATION	Person (Organization): MICHAEL KUNOWSKI (R3DO) NMSS_EVENTS_NOTIFICATION (EMAIL) JOSEPH DEBOER (R1DO)

Event Text

UNPLANNED CONTAMINATION ON PET CT SCANNER MOBILE UNIT

The following is a summary of information received from Alliance Health Services (Alliance) via the phone:

At approximately 0800 CST on January 2, 2020, a mobile PET CT scanner unit was received by Alliance from CardioNavix at the Henry Ford Medical Center in West Bloomfield, MI with rubidium-82 contamination on the top exterior surface of the generator cart. The initial wipes on the surface of the generator cart were 17,697 dpm and 112,368 dpm (2 different areas of the top of the cart). No other contamination was found. The contaminated generator cart is located inside the mobile unit with limited access. The unit has not been used since the discovery of contamination. No personnel were contaminated. The licensee notified CardioNavix and the unit will be picked up by CardioNavix later today.

Non-Agreement State	Event Number: 54462
Rep Org: BAYER CROPSCIENCE Licensee: BAYER CROPSCIENCE Region: 3 City: KANSAS CITY State: MO County: License #: 24-03830-01 Agreement: N Docket: NRC Notified By: STEVEN SCHERICH HQ OPS Officer: DONALD NORWOOD	Notification Date: 01/03/2020 Notification Time: 13:15 [ET] Event Date: 01/02/2020 Event Time: 00:00 [CST] Last Update Date: 01/03/2020
Emergency Class: NON EMERGENCY 10 CFR Section: 30.50(b)(2) - SAFETY EQUIPMENT FAILURE	Person (Organization): MICHAEL KUNOWSKI (R3DO) NMSS_EVENTS_NOTIFICATION (EMAIL)

Event Text

STUCK OPEN PROCESS GAUGE SHUTTER

On 1/2/2020, it was discovered that the shutter on a centrifuge process level gauge was stuck in the open position. The gauge is a Berthold model LB7442F, serial number 6005 containing a 3000 mCi Cs-137 source. The source serial number is 5559GN. The shutter is normally open during process operation and closed during maintenance. Red tape and plywood have been erected in order to prevent inadvertent personnel entry into the area. No over-exposures have occurred. A Berthold representative should be on-site next week to repair the shutter.

Part 21	Event Number: 54471
Rep Org: CARRIER CORPORATION Licensee: CARRIER CORPORATION Region: 1 City: SYRACUSE State: NY County: License #: Agreement: Y Docket: NRC Notified By: DAVID KWASIGROCH HQ OPS Officer: BRIAN P. SMITH	Notification Date: 01/10/2020 Notification Time: 13:44 [ET] Event Date: 01/10/2020 Event Time: 00:00 [EST] Last Update Date: 01/10/2020
Emergency Class: NON EMERGENCY 10 CFR Section: 21.21(a)(2) - INTERIM EVAL OF DEVIATION	Person (Organization): STEVEN RUDISAIL (R2DO) - PART 21/50.55 REACTORS (EMAIL)

Event Text

PART 21 - FAILED OIL PUMP DUE TO IMPROPER MOTOR ASSEMBLY

The following was received via facsimile:

"Duke Energy via Mr. James M. Smith issued a letter to Carrier Corporation's Customer Service Organization on November 21, 2019 reporting that on November 4, 2019, a Carrier 17FA999-1200-107 Oil Pump (Duke Energy UTC Number 30110654) failed rendering one train of the Control Room Area Chilled Water System inoperable. A failure investigation by Duke Energy representatives determined that the oil pump, which had been in service for less than two months, had a broken shaft and failed due to improperly assembled oil pump motor assembly. The failed oil pump and a replacement (spare) oil pump in the warehouse (Duke Energy UTC Number 30078287) both had loose fasteners and unstaked alignment pins.

"Prior to Duke Energy's November 21, 2019 notice, Carrier issued a corrective action to their supplier on April 28, 2017 to address failures with a different non-safety related oil pump (Carrier Model 17FA512- 968) at a non-nuclear facility. The corrective action applied to all 17FA oil pump assemblies supplied to Carrier after April 28, 2017, including both safety and non-safety related oil pumps. The corrective action consisted of cleaning of threaded holes and application of red Loctite, ensuring specified torque requirements are met using a calibrated digital torque wrench, and verifying the staking operation. Both oil pump issues described by Duke Energy in the November 21, 2019 notice concerned oil pumps built prior to the April 28, 2017 corrective action. Carrier is not aware of reports of any other defects in pumps in the same series in either nuclear or non-nuclear applications built since the corrective action.

"Carrier will provide a final report to the U.S. Nuclear Regulatory Commission no later than March 11, 2020. If you have questions regarding this matter, please contact the undersigned."

David Kwasigroch, Associate Director of Engineering, (315) 432-3461, dave.kwasigroch@carrier.com.

This issue affects McGuire Nuclear Station.

Page Last Reviewed/Updated Wednesday, March 24, 2021