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	Start date	Reporting criterion	Title	Event description
ENS 51105	30 May 2015 06:10:00	10 CFR 30.50(b)(2)	Radiography Source Stuck in Guide Tube	The equipment supporting the collimator, guide tube, and extension tube fell from a height of 9 feet causing the guide tube to become entangled in the piping below. (The guide tubes fell on equipment below and the short radius bends prevented source retrieval.) Equipment Involved: 7 foot flexible guide tube Serial Number GT060 7 foot flexible extension tube serial number EXT-15 Exposure device model: Sentinel Delta 880D, serial # D11876 Isotope: Ir-192, source Serial Number 17211G Source Activity: 102.3 Ci 35 foot Control Assembly S/N 16681 Place: Salt Water Treatment Plant, Central Operating Area, Prudhoe Bay, Alaska Actions taken to establish normal operations: The radiographer extended his restricted area and contacted the plant operator to inform him of the situation. He and the assistant radiographer then maintained security of the restricted area throughout the duration of the event. At no time did any member of the public enter the restricted area. The Radiation Safety Officer was contacted by the radiographer and arrived on the scene at 2320 hours (AKDT). Remote handling tools were used to untangle the guide tube and extension tube. Once the equipment was properly laid out the source was retracted to the shielded position using the control assembly. Corrective actions taken and planned to prevent reoccurrence: Retrain personnel on setup techniques with an increased focus on the stabilization of equipment. Qualifications (and dose) of personnel involved in incident: (1) IRRSP card holder, dose received, 7mR (2) Assistant Radiographer, dose received, 17mR (3) IRRSP card holder, dose received, 2mR (4) Jeremey A. Dunning, Site Radiation Safety Officer, IRRSP card holder, Source Retrieval trained by LAMCO & Associate February 25, 2011, dose received, 23mR (Dosimeter)
ENS 54809	31 July 2020 16:55:00	10 CFR 30.50(b)(2)	Non-Agreement State Report - Damaged Radiography Camera Guide Tube	The following is a summary of information received from the licensee's Radiation Safety Officer (RSO) via phone: While two radiographers where shooting pipe welds in Saint Albans, WV with a 100 Ci Ir-192 radiography camera, a separate pipe rolled off and crimped the guide tube with the source in the collimator. They extended the work area to 1 mR/h and called a retrieval team. The team arrived 1.5 hours later with lead bags, which were placed on the collimator, reducing the dose rate to 1 mR/h at the source. They cut some of the crimped metal in order to retract the source. The camera was returned to the licensee's South Point, Ohio storage unit. The guide tube will be cut and replaced. The dose to the radiographer and radiographer assistant was 30 mrem and 19 mrem, respectively. The dose to the retrieval team RSO and RSO assistant was 30 mrem and 22 mrem, respectively.
ENS 55344	7 July 2021 21:00:00	10 CFR 30.50(b)(2)	Source Retrieval	The following event synopsis was received by the licensee via phone call: The Headquarters Operations Officer (HOO) was notified by the licensee that during operations a source was disconnected from its drive cable and required retrieval. The licensee established a 2 mRem perimeter as well as other safety precautions in preparation for retrieval. The Radiation Safety Officer (RSO) was able to arrive and successfully retrieve the source. A formal report will be subsequently issued for the event. Wyoming is still considered a non-agreement state regarding material events with the only exception being uranium recovery events.
ENS 57089	23 April 2024 03:30:00	10 CFR 30.50(b)(2)	Radiography Camera Source Retrieval	The following report is a summary of the event provided via phone from the licensees radiation safety officer: At 0030 AKDT on April 23, 2024, a radiography crew utilizing a QSA Global 880D exposure device with a 50.9 Ci Ir-192 sealed source experienced an issue where the slide lock of the device actuated prior to the source being in the fully shielded position. The licensees radiation safety personnel were notified. The source was properly secured in the device at 0440 AKDT by trained personnel using a U tool to reengage the slide lock. There were no overexposures during this incident.

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