Event Notification Report for January 17, 2023

AGREEMENT STATE REPORT - DAMAGED TROXLER GAUGE

The following information was provided by the Florida Bureau of Radiation Control (BRC) via email:

"Professional Service Industries (PSI), Inc. called the BRC in Tallahassee to report a Troxler gauge [Troxler model 2440 (serial number (SL): 27404) containing Cs-137(SL: 750-1167) and Am-241:Be (SL:47-23791) sources] had been run over on a construction site in Winter Garden. BRC in Orlando was notified at 1005 EST. The Duty Officer in Orlando called PSI, who reported that the yellow gauge casing was broken, and the guide rod was also damaged. The source rod was reported to be in the fully retracted position. Reported survey readings onsite were normal for the Troxler gauge. An inspector from BRC, who was already enroute to the construction site, was notified and will conduct an investigation."

Florida Event Number: FL23-002


* * * UPDATE ON 01/06/2023 AT 1514 EST FROM FLORIDA BUREAU OF RADIATION CONTROL TO KAREN COTTON * * *
Source date of both isotopes 4/21/1997; initial activity for Cs137 was 8 mCi, serial number 750-1167; initial activity for Am241:Be was 40 mCi, serial number 47-23791. Contact dose rate is 18 mR/hr. Machinery was a tractor driven steam roller that backed over the gauge, with gauge going between the back tires. The rear axle area hit the gauge, not the tires or the steam roller cylinder. Gauge is being transported back to Troxler in the Orlando Metro area, in the original Type A transport case.

Notified R1DO (Deboer) and NMSS Events Notification via email

AGREEMENT STATE REPORT - STUCK SHUTTER

The following information was provided by the Tennessee Division of Radiological Health via email:

"During a scheduled source disposal with a Berthold technician, a licensee staff member broke the handle off the gauge when trying to close the shutter. The technician took surveys to verify the shutter was stuck in the open position. The plan from the Berthold technician is to design lead plates to simulate a closed shutter for the device to be shipped offsite.

"Corrective actions or reports as well as additional information will be updated with an NMED report within 30 days."

Manufacturer: Ohmart/Vega
Model: SH-F1A-0
Model SN: 3368CN
Isotope: Cs-137, 5 mCi

State Event Report ID number: TN-23-001

EN Revision Imported Date: 1/17/2023

EN Revision Text: MANUAL ACTUATION OF REACTOR PROTECTION SYSTEM (RPS)

The following information was provided by the licensee via email:

"At 0721 EST on 01/14/2023, with Unit 3 in Mode 3 at 0 percent power and reactor trip breakers open, a manual actuation of the RPS occurred while conducting pre-criticality testing. The RPS manual actuation was procedurally driven in response to low gland steam pressure, resulting in the necessity to break condenser vacuum following a trip of the auxiliary boiler. The reactor trip breakers were in an open state at the time of the event.

"This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the RPS.

"There was no impact on the health and safety of the public or plant personnel.

"The NRC Resident Inspector has been notified."