Intro / summary
The client contracted ALATAS following a catastrophic crane failure.
The Crane toppled backward due to a faulty boom limit switch. A local contractor recently inspected the crane, but the limits were never checked.
ALATAS provided a full onsite forensic investigation into what caused this catastrophic failure. We pinpointed the issue with the boom limit and dump valves and proceeded to rectify the items.
- ALATAS was contracted to complete the initial accident investigation
- We presented a safe lifting plan and procedure for component & boom removal
- Alatas then made a successful recovery with all the components without any further asset damage
- Alatas did a critical load path NDT inspection on all the remaining structure
- ALATAS removed all the essential items for complete refurbishment at the ALATAS repair facility. Things included: Fixed Bridle, Control Valves, dump valves, limit valves, Floating Bridle, Boom Tip, etc.
- Additional items were procured: boom sections, wire ropes, connection pins, Pendants, Hook blocks, etc.
- All items were rebuilt, tested, and then returned to the ALATAS repair facility.
- ALATAS installed all items that were ordered new
- ALATAS completed reeving of all cables
- ALATAS completed hosing up and connecting all rebuilt valves, dump valves & limit switch valves.
- ALATAS commissioned the system with all the new & rebuilt components successfully. All the while ensuring all limits and safeties were adequately working.
- ALATAS installed a safe load indication system, LSI. That replaced the obsolete system that was no longer working.
- ALATAS successfully carried out load testing
- ALATAS handed the crane back over to the customer, fully functional.