Investigation Report

Butterfly-Valve Flange Escapes Bench Vice and Strikes Mechanic

BSEEBureau of Safety and Environmental Enforcement

02-08-2016 13:15 G17565 AC 857 Required Evacuation – LTA (1-3 days)

Read at BSEEOpens the document on bsee.gov

Summary

An investigation examines facial injuries sustained by a rig mechanic tightening a butterfly-valve flange in a bench vice. The flange escaped and struck him. Findings identify excessive force, improper body positioning and worn vice jaws, and discuss tool selection and JSA provisions. He received stitches following medical evacuation and returned the next day.

Topics

About This Record
Original title
02-08-2016 13:15 G17565 AC 857 Required Evacuation – LTA (1-3 days)
Publisher
Bureau of Safety and Environmental Enforcement
Type
Investigation Report
Date
Unknown
Topic
Line of Fire
Activity
Inspection and Maintenance
Equipment
Hand Tools
Control
Job Safety Analysis
Sector
Upstream Oil and Gas
Setting
Offshore Installation
Link
Checked , working
Record
bsee-a2e9da976b · added 2 October 2026

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