Type: Lessons Learned
Publisher: Z - Not used - Was Lawrence Livermore National Laboratory ( see Federal Agency U. S. DOE or under DOE Contractor LL National Security), Livermore, CA
Published As: Public
A pneumatic nail gun did not fully seat a nail as expected, leaving the nail head protruding from the wood surface surrounding it. The worker attempted to hammer the nail into place, but it bent. Several attempts to remove the nail with a 12-inch crowbar and then a 24-inch crowbar were unsuccessful. The worker was pulling the free end of the crowbar toward himself when the nail head eventually deformed, allowing crowbar to suddenly and unexpectedly slip off the nail and strike him in the forehead. This resulted in a small laceration and some swelling.
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