[All_jlab_accounts] April 22 Briefing: Investigation Results of Florida State Univ. Fatal Mishap

[deborah magaldi]

/This message is sent on behalf of Jefferson Lab ESH&Q Division 
Associate Director, Mary Logue./

All:

On October 21, 2015, two National High Magnetic Field Laboratory (NHMFL) 
mechanical technicians were involved in an incident while attempting to 
remove a Victaulic blind flange from supply piping on a Magnet Cooling 
Water (MCW) System. The mechanical technicians were assisting a welder 
to obtain final measurements to make final connections from the MCW 
system to a new Cell 14 cryostat as part of the Series-Connected Hybrid 
magnet project. When loosening the nuts on the Victaulic flange collar, 
an explosion occurred. The flange, the water behind the flange, or some 
combination of both, struck and propelled one mechanical technician 
backward and into the metal support structure for the cryostat, 
resulting in his death. A second technician, who was approximately 10 
feet away at the time of the explosion, sustained minor injuries.

Leading the investigation of this mishap was the Environmental, Safety 
and Health (ESH) Director at Argonne National Lab, Betsy Dunn.On Friday, 
April 22, 2016, Betsy will be at Jefferson Lab to share the results of 
the investigation.The causes of this event are widespread, ranging from 
design issues, to Lock/Tag Try, training, and human performance, all of 
which are pertinent to our work planning at Jefferson Lab.We have 
scheduled two sessions of this presentation in the CEBAF Center 
auditorium to accommodate the schedules of all who may be interested: 10 
a.m. and 1 p.m.

Betsy's presentation in both powerful and sorrowful.I encourage you to 
attend, and ask that you encourage your work groups that perform 
hands-on work, or anyone interested to attend.A separate invitation will 
be issued by the Pressure Systems Committee to Design Authorities and 
Pressure System Owners.

Mary

-- 

Mary Logue

Associate Director, ESH&Q

Thomas Jefferson National Accelerator Facility

12050 Jefferson Avenue, Suite 602

Newport News, VA 23606

757-269-7447


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