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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 52737 | 8 May 2017 11:45:00 | Agreement State | Agreement State Report - Co-60 Irradiator Source Down Switch Failure | According to 180 NAC 3-026.02 (NRC 10 CFR 30.50) this is the twenty four hour report to the HOO (NRC Headquarters Operations Officer) due to an event in which equipment is disabled or fails to function as designed and is required to regulation or license condition and no redundant equipment was available and operable to perform the required safety function. The RSO (Radiation Safety Officer), called to report that on May 6th, (2017) at approximately 0645 (CDT) in the morning, Becton Dickinson had a source rack time-out alarm. The Source Rack down switched failed to indicate the rack reached the down position. Upon initial investigations they determined the source was in the down and shielded position. With the help of their service company, Nordion, they bypassed the door interlock and with survey instruments, they ensured the sources were down in the shielded position. No exposure to personnel occurred. Upon initial visual inspection, it appears there may have been a broken (electrical) cable that caused the alarm. Nordion is expected to be on-site today, Monday, May 8, to fix the problem. Will update when we receive the written report. |