Safety Alert

Crane Anti-Two Block Weight Pulled into Boom Tip Causing Damages to Auxiliary Cable and Sheave

BSEEBureau of Safety and Environmental EnforcementBSEE Safety Alert 433

Crane Anti-Two Block Weight Pulled into Boom Tip Causing Damages to Auxiliary Cable and Sheave

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Summary

This alert describes repeated anti-two-block weight failures on a platform crane, with bypassed alarms and damage to the auxiliary cable and boom-tip sheave. It links an earlier sensor and chain incident to subsequent component changes, and recommends considering improved inspections, change management, operating procedures, training and oversight of safety-system bypasses.

Topics

About This Record
Publisher
Bureau of Safety and Environmental Enforcement
Type
Safety Alert
Reference
BSEE Safety Alert 433
Date
16 March 2022
Topic
Dropped Objects, Mechanical Failure
Activity
Inspection and Maintenance, Lifting Operations
Equipment
Crane, Wire Rope
Control
Competence and Training, Operating and Work Procedures, Pre-Use Checks, Safety Communication
Sector
Upstream Oil and Gas
Link
Checked , working
Record
bsee-safety-alert-433 · added 2 September 2026

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