Incident date: 2025-07-09
NAICS industry code: 213111

During maintenance of an annular blowout preventer, air pressure was applied to dislodge a stuck internal piston. The piston ejected and struck an employee's left bicep, causing a laceration and a fracture.

Hazard classification:
code_event: title: Struck by dislodged or detached object(s)
code_source: title: Combustion engine blocks, cylinders, pistons
code_nature: title: Fractures and surface, flesh wounds
code_body: title: Upper arm(s)
severity: moderate