Bulletin 74-005: Shipment of an Improperly Shielded Source
BL74005 SHIPMENT OF AN IMPROPERLY SHIELDED SOURCE April 12, 1974 DRO Bulletin No. 74-5 A. Description of Circumstances A recent air shipment of a radiographic sealed source containing 32 curies of iridium 192 was received by the consignee with the sealed source in an essentially unshielded condition. The shipment was made in a Gamma Industries Model C-10 shipping container. Preliminary investigation results indicate that the manufacturer's instructions were not followed and the package was improperly loaded by the shipper. As a result, some passengers and transportation cargo handlers received unnecessary radiation exposure. Copies of the public announcements issued by AEC on April 9 and 10, 1974, summarizing the preliminary information are enclosed. The extent and significance of the radiation exposures and the details concerning the loading of the package are being investigated at this time. This occurrence dramatically illustrates the need for all radiography licensees to assure that all shipments of radiographic sources are properly packaged and confirmed to meet DOT regulations prior to shipment, as required by your licensee. The procedures developed by you in accordance with the below action items will be examined during subsequent inspections of your licensed activities. B. Action To Be Taken In view of the above, you will take all necessary steps to assure that all subsequent shipments of radiographic sources are made safely. As a minimum, these steps should provide assurance that: 1. Only shipping containers authorized by your license are used. 2. The step-by-step instructions issued by the manufacturer of the container are followed in detail and in the sequence presented. 3. The source is securely locked in the fully shielded position as confirmed by carefully performed and recorded radiation surveys. 4. No package with radiation levels in excess of 200 milliroentgens per hour at the package surface, or 10 milliroentgens per hour at three feet, should be released for shipment, as specified in DOT regulations. 5. Package labeling and accompanying shipping papers should be properly completed. Attachments: 1. AEC Press Release No. T-161 2. AEC Press Release No. T-162 Attachment K
Page Last Reviewed/Updated Tuesday, March 09, 2021
Page Last Reviewed/Updated Tuesday, March 09, 2021