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Forwards info in response to request for analysis & follow-up of 970429 ltr from Tucker Technologies to NRC re positive leak test on Amersham Model CDC.CY well logging source.

Accession Number: ML20198L519

Date Released: Monday, October 28, 2024

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• ML20198L515 - Forwards info in response to request for analysis & follow-up of 970429 ltr from Tucker Technologies to NRC re positive leak test on Amersham Model CDC.CY well logging source. (5 page(s), 10/23/1997)
• ML20198L537 - Informs that Trucker Technologies,Inc has investigated several possibilities for upgrading 2 Ci Cesium source holder.Options include replacing O-ring item 4 w/waffle or wave spring or replacing O-ring item 4 w/coil spring. (5 page(s), 8/14/1997)
• ML20198L542 - Informs of confirmation that Tucker Wireline had stated that source assembly was welded prior to utilization.Only issue w/welds regarded tack welds vs 360 degree weld. (1 page(s), 9/3/1997)
• ML20198L549 - Informs that draft of insp notice appears to be complete. Notice incorrectly states that source was assembled by screwing two pieces together & spot welded to prevent unscrewing. (10 page(s), 8/26/1997)
• ML20198L557 - Informs that 2 Ci Cesium source 1634GW was in Victoria,Texas during 941202-950310,950526-0814 & 950823-1010.Radioactive Source utilization sheet finally located.List dates & company names source was used on. (1 page(s), 7/23/1997)
• ML20198L572 - Informs that source (Model CDC.CY4, 2 Ci Cs-137,Serial 1634GW) was originally installed in bull plug when it was supplied to Tucker Technologies in Aug 1992.Void space w/o o-rings less than 1 millimeter. (1 page(s), 7/28/1997)
• ML20198L590 - Informs that no major violations of note were evident after 970715 visit to Tucker Technologies In Tulsa Oklahoma. Initial concern whether source plug had been used in harsh or abusive environ. (3 page(s), 7/24/1997)
• ML20198L606 - Discusses 970520 converstation w/W London re leaking source from Tucker technologies.Informs that W London claimed that source had been used downhole but not within last 6 months. (6 page(s), 4/30/1997)
• ML20198L612 - Forwards documents re leaking sources.Matter being looked into. (1 page(s), 4/29/1997)
• ML20198L624 - Informs that Wayne was not aware that source had been used downhole.Amersham visual analysis indicated that source had been subjected to unusual abuse.Professional opinion that source not generic problem.Epoxy applied to leaking source. (1 page(s), 4/28/1997)
• ML20198L629 - Forwards info re leaking sources.Tucker Technologies identified as well logging company.Amersham CDC.Cy Series source.Source not used in WL environment,just in tests in office.J Horn identified as Amersham customer support. (1 page(s), 4/28/1997)
• ML20198L640 - Informs that L Howell from Region IV called to inform about two leaking Amersham sources.Sources are from CDC Cy series & are used for developing well logging sources. (9 page(s), 4/25/1997)