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The following information was received via … The following information was received via email.</br>North Carolina (NC) Radioactive Materials Branch (RMB) is submitting the following reportable event: Radiography Camera Source Unable to Retract.</br> Reportable per: 10 CFR 30.50(b)(2) & 10 CFR 34.101(a)(2)</br> Event Date & Discovered Date: 6/25/18</br> Date Reported to RMB: 6/26/18</br> Location where event took place: Stoneville, NC</br> Reporting Licensee: Applied Technical Services (ATS)</br> NC License Number: 1510-1</br> Radiography Camera Manufacturer: QSA Global, Inc.</br> Radiography Camera Model #: Delta 880</br> Radiography Camera S/N: D5059</br> Source: Ir-192</br> Source Activity: 71.4 Ci</br> Source Manufacturer: QSA Global, Inc.</br> Source Model #: A424-9</br> Source S/N: 65909G</br> </br>While conducting radiography shots at a water tank construction site, ATS radiography crew experienced a source hang up. Radiographers initially believed the cause to be a crimped guide tube due to source not moving in either direction. While maintaining a 2 mR/hr boundary, additional personnel were dispatched to the work site by ATS with additional shielding material and (the) RSO (radiation safety officer) who is responsible for source retrievals. Lead blankets were placed on the guide tube and the RSO determined that the guide tube was not compromised, kinked, crimped or otherwise damaged. Probable cause was determined to be in the control assembly. RSO unthreaded the guide from the outlet adapter and exercised the controls with no effect. Guide tube was reconnected and RSO began to troubleshoot the connection side of the camera by removing the housing from the connection to observe the cable while again exercising the controls. Cable would flex but was observed to be either wedged or pinned at the connector. During this process, it was observed that since the cable would not flex on the outlet side of the camera it was determined that extreme force on the controls side would not result in the cable being disconnected from the pig tail. The housing was reattached, and extreme force was used on the controls to break the cable free and the source was returned to its secured and shielded position. The RSO observed the control assembly crank did have more movement than usual, and root cause was determined to be debris from a damaged bearing that had moved down the control cable housing and locked up the controls. This equipment had quarterly maintenance and weekly inspections conducted on it. (The) controls were shipped to QSA for repair or disposal. All personnel involved in the source retrieval received doses well within annual limits for radiation workers.</br> </br>RMB has concluded its investigation and consider this event Closed & Complete. No other agencies were informed of this event and no other generic issues identified.</br>NMED Event ID: 180329</br>NC Tracking ID: 180029ntified.
NMED Event ID: 180329
NC Tracking ID: 180029
04:00:00, 25 June 2018 +
53,508 +
08:58:00, 17 July 2018 +
04:00:00, 25 June 2018 +
The following information was received via … The following information was received via email.</br>North Carolina (NC) Radioactive Materials Branch (RMB) is submitting the following reportable event: Radiography Camera Source Unable to Retract.</br> Reportable per: 10 CFR 30.50(b)(2) & 10 CFR 34.101(a)(2)</br> Event Date & Discovered Date: 6/25/18</br> Date Reported to RMB: 6/26/18</br> Location where event took place: Stoneville, NC</br> Reporting Licensee: Applied Technical Services (ATS)</br> NC License Number: 1510-1</br> Radiography Camera Manufacturer: QSA Global, Inc.</br> Radiography Camera Model #: Delta 880</br> Radiography Camera S/N: D5059</br> Source: Ir-192</br> Source Activity: 71.4 Ci</br> Source Manufacturer: QSA Global, Inc.</br> Source Model #: A424-9</br> Source S/N: 65909G</br> </br>While conducting radiography shots at a water tank construction site, ATS radiography crew experienced a source hang up. Radiographers initially believed the cause to be a crimped guide tube due to source not moving in either direction. While maintaining a 2 mR/hr boundary, additional personnel were dispatched to the work site by ATS with additional shielding material and (the) RSO (radiation safety officer) who is responsible for source retrievals. Lead blankets were placed on the guide tube and the RSO determined that the guide tube was not compromised, kinked, crimped or otherwise damaged. Probable cause was determined to be in the control assembly. RSO unthreaded the guide from the outlet adapter and exercised the controls with no effect. Guide tube was reconnected and RSO began to troubleshoot the connection side of the camera by removing the housing from the connection to observe the cable while again exercising the controls. Cable would flex but was observed to be either wedged or pinned at the connector. During this process, it was observed that since the cable would not flex on the outlet side of the camera it was determined that extreme force on the controls side would not result in the cable being disconnected from the pig tail. The housing was reattached, and extreme force was used on the controls to break the cable free and the source was returned to its secured and shielded position. The RSO observed the control assembly crank did have more movement than usual, and root cause was determined to be debris from a damaged bearing that had moved down the control cable housing and locked up the controls. This equipment had quarterly maintenance and weekly inspections conducted on it. (The) controls were shipped to QSA for repair or disposal. All personnel involved in the source retrieval received doses well within annual limits for radiation workers.</br> </br>RMB has concluded its investigation and consider this event Closed & Complete. No other agencies were informed of this event and no other generic issues identified.</br>NMED Event ID: 180329</br>NC Tracking ID: 180029ntified.
NMED Event ID: 180329
NC Tracking ID: 180029
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00:00:00, 17 July 2018 +
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22.207 d (532.97 hours, 3.172 weeks, 0.73 months) +
04:00:00, 25 June 2018 +
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