Incident date: 2017-10-02
NAICS industry code: 213111

An employee and coworkers were attempting to change out a leaking O-ring. They were using a 3-ton come-a-long to create a gap when the hook on the come-a-long broke, causing the gap to close and smash the employee's right and left thumbs.

Hazard classification:
code_event: title: Compressed or pinched by shifting objects or equipment
code_source: title: Oil drilling rigs and machinery
code_nature: title: Crushing injuries
code_body: title: Finger(s), fingernail(s), unspecified
severity: moderate