The following was excerpted from information received from the State of
New Jersey by email:
Event Narrative: On November 7, 2016, during the six-month shutter checks, the pneumatically operated shutter on the Vega source holder Phillips 66-Bayway Tag # PBL002 (source capsule S/N 0321CG) failed to close when tested. Several attempts were made wherein the shutter position indicator seemed to move slightly. It was concluded that the issue was not a failure of the air system controlling the pneumatic shutter actuator. The manufacturer was contacted to assess the problem.
Root cause(s) and contributing factors: The source remained in the holder attached to the vessel in its normal operating position. The integrity of the source holder remains intact so there should be no exposures.
Source/Radioactive Material/Devices: radioactive level gauge
Isotope and activity; manufacturer, model and serial number, leak test results as applicable: The source is a 50 mCi Cs-137 solid sealed source, S/N 0321CG. The last leak test was 10/19/15.
The equipment is an Ohmart/Vega model SH-F1A source holder mounted to a vessel.
New Jersey Case Number: 161107162023
The following update was received from the State of New Jersey via email:
Vega serviced the unit on November 11, 2016, with lubrication. It was considered to work properly after service. Phillips 66 notified NJDEP [New Jersey Department of Environmental Protection] on November 30, 2016, that a new unit will be purchased to replace the old unit. Event status is 'closed'.
Notified R1DO (Bower) and NMSS_Events_Notification via email.