Alerts & Learnings Safer Together: Servicing a well A worker was removing a 40mm plug from a riser to install a reducer and temperature probe during construction activities. The plug ejected under pressure, striking the worker in the forehead. The worker sustained skull fractures, internal bleeding and a laceration.To view this Safer Together alert in full, click the 'Download Alert' button. Download Alert Share: Share on Linkedin Share on Facebook Share on Twitter Share with Email