Text For Citation: 01 Item/Group: 002 Hazard: STRUCK BY

Section 5(a)(1) of the Occupational Safety and Health Act of 1970: The employer did not furnish employment and a place of employment which were free from recognized hazards that were causing or likely to cause death or serious physical harm to employees in that employees were exposed to: a. Employee(s) exposed to fall from the rod basket approximately 80 feet and being struck by an overturning service rig resulting from the failure to install adequate anchorage at the well site and the failure to place and secure the rig's guylines to ground anchors immediately following raising of the mast. This occurred on or about March 1, 1991; Wilson model 96-150 service rig, S/N 82896150, while employees were required to work from the rig floor and rod basket. Among other methods, one feasible and acceptable abatement method to correct this hazard would be to provide anchorage at each well site capable of withstanding the maximum guyline loads determined by conducting pull tests; and ensuring the rig's guylines are in place and secure immediately following raising of the mast to assure overturn stability. Essential elements of this procedure would include: 1. Following the rig manufacturer's instruction manual for requirements on guying, guylines and anchorage. 2. Verifying the holding capacity required for each dead weight or guy anchor. 3. Conducting and recording data on representative pull tests for the areas, size, and type of anchor involved by recognized testing methods. 4. Installing anchors using the exact mode of installation corresponding to representative pull test data for the area which assures adequate anchorage.