An incident was reported involving the failure of a crane access platform during routine operations. The report, issued by IMCA, highlights structural failure at a connection point that led to a fall incident involving the crane operator. No injuries were sustained.
What Happened
While preparing to start work, the Crane Operator (Bosun) began climbing the ladder to the crane cab. As the operator ascended, the access platform and its protective cage, which were connected to the crane base, suddenly failed. The operator fell within the protective enclosure of the ladder, which partially reduced the impact. The individual was shaken but not injured.
Why It Happened
The structural failure occurred at the connection point between the access platform and the crane base due to a hidden crack and corrosion at the weld seam. The platform and ladder protection structure were attached via a flange connection, leaving only a narrow inspection gap between the flange and pedestal. This configuration made visual inspection of the weld area impossible, allowing deterioration to go undetected over time.
The crane had recently been repainted by a third-party shipyard contractor. The previous paint was not completely removed during surface preparation, which likely concealed pre-existing cracks and corrosion. These defects remained unnoticed during maintenance and inspection activities.
Actions Taken
No specific corrective actions were detailed in the report. However, the findings emphasize the need for improved inspection accessibility, enhanced maintenance procedures, and stricter oversight of third-party work during shipyard or dry-dock periods.
Lessons Learned
- Ensure that all structural areas, including those difficult to access, are thoroughly inspected for corrosion or cracks.
- Consider design or modification improvements that allow easier visual and physical inspection of critical connection points.
- Apply non-destructive testing (NDT) techniques—such as ultrasonic or magnetic particle testing—where visual checks are not possible.
- Strengthen supervision and verification of third-party work, especially during shipyard maintenance or painting operations.
- Be alert to visible signs of deterioration such as rust or cracks and report them immediately.
- During surface preparation, ensure complete removal of old paint and coatings to expose any underlying damage before repainting.
Did you subscribe to our Daily newsletter?
It’s Free! Click here to Subscribe!
Source: IMCA
