Incident date: 2018-01-16
NAICS industry code: 213112

Employees were rigging down a well-servicing rig as an operator station was being lowered with a winch line. The operator station became temporarily hung up on the gears, causing the winch line to develop approximately 4 feet of slack on the line. When the operator station freed itself, it fell approximately 4 feet and struck an employee. The employee suffered fractured vertebrae.

Hazard classification:
code_event: title: Struck by falling object or equipment, unspecified
code_source: title: Oil drilling rigs and machinery
code_nature: title: Fractures
code_body: title: Nonclassifiable
severity: moderate