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
Free Click
Source: IMCA
