The following was received from the
New Hampshire Radiological Health Section via email:
[In January 2017], during routine maintenance of a generally licensed fill-level gauge, it was discovered that the gauge shutter would not close by ordinary means. A manual shutter handle within the actuation assembly was used to attempt to close the shutter, but the linkage was binding and causing the shutter to remain open. The gauge was already out of service for maintenance, and remained so until the shutter mechanism was repaired. No personnel exposure resulted.
The cause was determined by the service technician as a binding solenoid spool. The spool bushing was reamed out and the shutter linkage was lubricated, which allowed the solenoid spool to resume moving freely as designed.
Gauge Details: Americium-241, 300mCi (11.1 GBq) sealed source; Industrial Dynamics Model 19567; s/n 156LX; no detectable leakage
The New Hampshire Radiological Health Section considers this event closed.
Report ID #: #NH17-0003