Investigation Report
Crane Boom Bent During Load Testing After Welding
02-08-2007 21:45 G05625 ST/245 Crane - H2S/15MIN./20PPM
- BSEE
- Investigation Report
- Unknown
- Material fatigueMechanical failure
- Inspection and maintenanceLifting operations
- Crane
- Functional testing
- Upstream oil and gas
- Offshore installation
Summary
This investigation records a Leap Frog crane boom bending during load testing after welding at a workover service location. The boom bent when the load reached 32,000 pounds. Material fatigue was identified as the probable cause. Following repair, the boom passed inspections and the reassembled crane was retested.
Classifications: Material fatigue; metal fatigue.
Classifications: Mechanical failure; equipment failure.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Crane; cranes.
Classifications: Functional testing; function test.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.