The following was received from the
New Hampshire Radiological Health Section via email:
[In January 2018], during routine semi-annual leak testing of a generally licensed fill-level gauge, it was discovered that the gauge shutter would not close completely by ordinary means and the red 'Source ON' status indicator lamp remained continuously lit. A manual shutter handle within the actuation assembly was used to close the shutter. While doing so, a green wire was noted as brushing against the shutter linkage and impeding its operation. The gauge was already out of service for maintenance, and remained so until the shutter mechanism was repaired. No personnel exposure.
The cause was determined by the service technician as a wire interfering with the path of the shutter linkage, preventing full closer of the shutter. The wire was moved out of the way, allowing the shutter to move along its full path 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 #: #NH18-0001