Event Notification Report for December 07, 2020

EN Revision Imported Date: 12/7/2020

EN Revision Text: PART 21 - ISSUES IDENTIFIED WITH THE ENTERPRISE DIESEL ENGINE SUBCOVER

The following information is excerpted from a facsimile report submitted:

"Engine Systems Inc. (ESI) began a 10 CFR 21 evaluation on November 18, 2016 upon notification of an issue with a subcover assembly at Perry Nuclear Plant. Attempts to install the subcover on their Enterprise diesel engine revealed two issues that prevented successful installation. First, one of the bolt holes was not fully machined through the entire depth of the subcover. Though the bolt could be inserted into the top of its corresponding hole, it would not pass completely through. The second issue was an interference between the rocker arm shaft and its mating pedestal. It was found that incomplete machining of the pedestal prevented the shaft from sitting flat on the pedestal.

"The evaluation was concluded on 12/21/16 and it was determined that this issue is a reportable defect as defined by 10 CFR 21."

The affected facilities are:
First Energy - Perry
Georgia Power - Vogtle

Also listed was the following affected facility:
Korea - Yonggwang

Component: Subcover Assembly, P/N 1A-7846

* * * UPDATE ON 12/4/20 AT 1435 EST FROM DAN ROBERTS TO THOMAS KENDZIA * * *

The following is the summary of a facsimile:

Engine Systems Inc. (ESI) determined that in addition part number 03-362-04-AH was affected by this defect. Two of these parts were supplied to Commanche Peak with an ESI certification date of 8/6/2014.

Notified R4DO (Gepford) and Part 21 Reactors Group (email).

EN Revision Imported Date: 12/7/2020

EN Revision Text: AGREEMENT STATE REPORT - STOLEN NUCLEAR GAUGES

The following is a summary of information received from the Texas Department of State Health Services (the Agency) via email:

"On November 5, 2020, the Agency was notified by the licensee that three of their nuclear density/level measurements gauges had been stolen from one of their storage sites. The storage site had been vandalized and various pieces of equipment were damaged as well. The licensee has contacted local law enforcement about this incident.

"The gauges contain Cs-137 sources. The total activity of the missing sources is estimated to not exceed 200 mCi. The licensee does not have any additional information regarding the incident or gauges at this time."

Texas Incident Number: 9808

* * * UPDATE ON 11/10/20 AT 0813 EST FROM ART TUCKER TO BRIAN LIN * * *

"On November 9, 2020, the licensee provided additional information on the stolen gauges. All gauges contained cesium-137 sources. Two of the gauges were Thermo Fisher model 5192 gauges. One of the two gauges contained a 250 milliCurie (mCi) (original activity now 215 mCi) source and the other contained a 200 mCi (now 162 mCi) source. The third gauge was a Thermo Fisher model 5190 gauge containing a 200 mCi (now 166 mCi) source. The gauges had been stored in a locked cage on the licensee's site. The gauges were still installed on the pipes they were used on. The licensee stated the last time the gauges were seen was September 1, 2020. The Agency instructed the licensee to notify local scrap yards of the theft and provided them with a copy of the attached picture. The Agency has requested additional information from the licensee. Additional information will be provided as it is received in accordance with SA-300."

Notified R4DO (Dixon), ILTAB (email), NMSS Events Notification (email), and CNSNS-Mexico (email)

* * * UPDATE ON 12/6/20 AT 2301 EST FROM ART TUCKER TO THOMAS KENDZIA * * *

"On December 6, 2020 at 2033 [CST] hours the Agency was notified by the licensee that the three devices reported stolen in this event have been recovered. The gauges are in the possession of the licensee and are locked inside a secured location. Additional information will be provided through NMED as it is received.."

Notified R4DO (Gepford), ILTAB (email), NMSS Events Notification (email), and CNSNS-Mexico (email)

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

EN Revision Imported Date: 12/8/2020

EN Revision Text: DAMAGED MOISTURE DENSITY GAUGE

The following information was received from ALLWEST Testing & Engineering, Inc. via email:

"On October 29, 2020, an ALLWEST employee [the authorized user] was testing the density of freshly placed asphalt on Painted Sky Street in the Spring Hollow Ranch subdivision in Nampa, Idaho using a CPN MC-1 portable nuclear densometer (SN 9216). At approximately 1115 Mountain Daylight time, the gauge was damaged by a Cat CCS9 combination roller under the direction of Nampa Paving.

"[The authorized user] was in the process of running a density test in AC mode when the roller backed up and impacted the gauge. The roller moved off of the gauge after impact. After impact, the handle was oriented at a 45-degree angle from the base of the gauge and the case was detached from the base. [The authorized user] moved away from the damaged gauge and cordoned off the area to prevent anyone from approaching the damaged gauge.

"[The authorized user] immediately contacted the Meridian office assistant RSO [radiation safety officer] who contacted the Corporate RS. [The assistant RSO] and another ALLWEST employee [the employee] responded to the accident and initiated ALLWEST's emergency protocol. [The assistant RSO] used a survey meter to obtain readings around the damaged gauge. The readings indicated the nuclear sources were not exposed and the shielding was intact. The handle was placed back in the case, and the handle, case and base were placed in the transport box. The transport box was then placed in an overpak barrel and transported back to the ALLWEST office.

"Additional readings were taken using the survey meter around the gauge at the ALLWEST office. All readings were consistent with the sources being in a shielded condition.

"[The assistant RSO] contacted lnstrotek and discussed the condition of the gauge and the readings obtained from the survey meter. lnstrotek representatives indicated it was acceptable to ship the damaged gauge to them for disposal in the transport box. As an additional precaution, [the assistant RSO] and [the employee] wrapped the damaged gauge in lead sheeting and placed the wrapped gauge in the transport box. The transport box with the damaged gauge was then shipped to lnstrotek for disposal.

"ALLWEST sent the personal dosimetry badges for [the authorized user], [the assistant RSO], and [the employee] to Landaeur for immediate evaluation. The radiation dosimetry report from Landauer indicated minimal exposure to all three individuals."

The gauge contained 10 mCi Cs-137 source and a 50 mCi Am-241 source.

AGREEMENT STATE REPORT - WELL LOGGING, STUCK SOURCE

The following information was received from the State of Kansas, Department of Health & Environment via email:

"On 10/16/2020 Kansas licensee #27-B1008 ELI Wireline Services LLC was logging a gas storage well when the tool became stuck in 2 3/8" tubing at approximately 2100 feet from surface. Attempts to free the tool while still attached to the wireline were unsuccessful and the wireline was pulled resulting in the rope socket leaving the cable head, two weight bars, gamma ray neutron tool, and a 3 Curie AmBe-241 sealed source lodged inside the tubing. The licensee's attempts to retrieve the source have so far been unsuccessful, partly due to windy weather conditions and 1500 pounds of gas pressure on the well. The licensee contacted the state of Kansas on 10/21/2020 to report a stuck radioactive source downhole. The licensee made the decision to wait until spring when the field had less pressure and the weather was better to clean out the tubing to enable the fishing tool to reach the stuck logging tool. Kansas agreed with the delay on source recovery for better weather and required that a sign matching the requirements of K.A.R. 28-35-362 [with the exception of (2)(C) and (2)(H)(i)] be placed at the wellhead no later than December 24, 2020. At this time this incident is not considered an abandoned source, however, The state of Kansas determined that it was appropriate to go ahead and report to the HOO out of an abundance of caution in the event that the source is unable to be retrieved in the spring of 2021."

AGREEMENT STATE REPORT - LOST STATIC CONTROL DEVICE

The following was received from the state of Utah via email:

"The licensee indicated that while conducting an inventory of their radioactive devices it was discovered that a small Static Control Device (SCD) was missing containing an estimated 16.27 mCi, Po-210 source, manufacturer: NRD, model: 1U400. The source was licensed and distributed under a general license. The licensee believes the SCD may have been disposed of as lab waste, been moved to a different location within the building, or was inadvertently added to a field project kit that has not been located. The current location of the device is unknown."

Event Report ID No.: UT 200002

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

EN Revision Imported Date: 12/8/2020

EN Revision Text: AGREEMENT STATE REPORT - DAMAGED GAUGE

The following information was received from the Commonwealth of Virginia via email:

"On October 20, 2020, a representative of the Virginia Radioactive Materials Program (VRMP) received a report from a licensee via email that a portable nuclear moisture/density gauge was damaged in a vehicle accident at the intersection of Airport Road and Hwy 156 in Sandston, Virginia. The report indicated that a Troxler soil density gauge (Model 3430, Serial # 36803, containing 8 milliCuries of Cesium-137 and 40 milliCuries of Americium-241/Beryllium) was being transported in its case in the bed of a truck. During the accident, the case was damaged and the gauge housing was cracked, but there appeared to be no significant damage to the baseplate, rod, shielding or sources. The licensee's survey of the gauge yielded readings of 8-10 mR/hr at a 6 inch distance from the gauge. The gauge was returned to the Ashland office then transferred to an intact case and transported to North East Technical Services [(NETS)] for further evaluation. The VRMP is working with the licensee to obtain additional information and this report will be updated once the licensee's investigation is complete and the information is received."

VA incident no.: VA20005

* * * RETRACTION ON 12/08/20 AT 0922 EST FROM ASFAW FENTA TO SOLOMON SAHLE * * *

The following retraction was received from the Commonwealth of Virginia via email:

"On November 4, 2020, VRMP performed a reactive inspection. The inspector noted that on October 20, 2020, the licensee sent the gauge to NETS for leak testing and evaluation. The record from NETS indicated that no removable contamination was detected. It also concluded that every component of the gauge is functioning as it should and the gauge was deemed serviceable for field use. The licensee, however, reported this initially as a damaged gauge because of the small crack observed on the plastic case of the gauge. Since the gauge still functioned properly with no damage to any shielding components, the incident does not meet the reporting requirements of 12VAC5-481-1110 B. 2.(10 CFR 30.50 b.2). Thus, VRMP requests the NRC Operation Center retract this event report. "

Notified R1DO (Bower) and NMSS Event Notification via email.