Incident date: 2016-09-11
NAICS industry code: 213112

An employee was working on a rig floor. A casing basket fell into the tongs of a nearby rig, and the tongs would not release. Both retaining chains to the tongs released and the tong movement lever activated. The tongs swung and hit an employee, pinning him between the tongs and a derrick mast. He suffered one broken rib and one bruised lung.

Hazard classification:
code_event: title: Struck by swinging or slipping object, other than handheld, n.e.c.
code_source: title: Oil drilling rigs and machinery
code_nature: title: Fractures
code_body: title: Chest, except internal location of diseases or disorders
severity: moderate