09 Sep How Cargo Accidents Occur And How To Prevent Them
Let’s start with a scenario:
Imagine a container is lifted onto a ship and everything looks fine from the outside. But inside, the cargo has shifted dangerously during inland transport to the port. The straps were frayed. The load wasn’t properly balanced. And now that unit is en route across a rough sea.
The result? A preventable cargo accident that can lead to lost freight, vessel instability, or worse.
Cargo load securement issues are typically associated with road haulage, but they’re just as critical when shipping containers are moved globally. Poor securing practices during the packing of cargo transport units (CTUs) can have devastating consequences during handling, transit, and unloading.
Let’s explore the risks and how to prevent them turning into cargo accidents.
What Happens When Cargo Securing Fails in CTUs?
Whether it’s a 20-foot shipping container or a flat rack loaded with break bulk cargo, improper securing puts everyone at risk.
Here’s what can go wrong:
- Container imbalance: Uneven weight distribution can affect vessel stability, especially in rough seas. Poor packing may lead to tipping, rolling, or even container stack collapse.
- Cargo shift or loss: If the load isn’t properly blocked or braced, it can slide or tip inside the CTU. In break bulk scenarios, unsecured items can become dangerous projectiles.
- Damage to cargo and vessels: Freight that’s not immobilised during sea transit may arrive damaged—or cause damage to other containers and ship infrastructure.
- Injuries and fatalities: From stevedores handling CTUs to crew members at sea, unsecured cargo presents a serious safety risk.
Regulatory breaches: Non-compliance with the CTU Code can trigger penalties, detentions, or rejection of cargo—plus liability exposure in case of incidents.
Why Do Cargo Accidents Keep Happening?
The frustrating truth is: many cargo accidents are preventable.
The most common culprits?
- Using worn or inappropriate securing materials
- Failure to follow the CTU Code recommendations
- Poor understanding of weight distribution and centre of gravity
- Inadequate training for packing teams
Rushing the process to meet vessel cut-off times
Remember, once a container is sealed and on board, no one sees the inside again until it reaches the destination. This makes it absolutely critical for all types of cargo to be secured right at the point of packing.
How To Prevent Cargo Accidents In Container Shipping?
According to the IMO/ILO/UNECE CTU Code, preventing cargo incidents is a matter of diligence, training, and using the right securing methods for the cargo and transport conditions.
Here’s how to do it right:
1. Use Certified Equipment
Inspect lashing equipment, blocking materials, and friction mats before use. Avoid outdated gear and always use certified materials that match the securing demands of sea transport.
2. Understand Load Distribution
CTUs should be packed to distribute cargo weight evenly, with the centre of gravity appropriately positioned. Avoid concentrated loads unless supported by structural reinforcement or specific bracing.
3. Pack for the Sea
Ship motion creates acceleration forces in all directions, especially during heavy seas. Your securing method should account for vertical, lateral, and longitudinal movement—not just simple braking forces like in road transport.
4. Apply the Right Securing Method
Use form-locking (tight stowage to boundaries), direct cargo lashing, or friction-based restraint where appropriate. Annex 7 of the CTU Code provides calculations for securing force requirements based on transport mode and cargo type.
5. Train Everyone Involved
From the warehouse packer to the person signing the packing certificate, everyone in the chain should be trained on CTU Code requirements and container packing best practices.
6. Verify and Document
Record gross mass correctly and affix seals when needed. The Container Packing Certificate must be filled accurately and submitted alongside shipping documents.
Final Thoughts
Poor cargo securing isn’t just an oversight—it’s a risk multiplier. It jeopardises the cargo, the vessel, the crew, and the entire logistics operation.
Whether you’re loading steel coils, timber, or project cargo into a container or onto a break bulk vessel, the takeaway is the same: secure it like lives depend on it—because they do.
Looking for expert advice on how to meet CTU Code standards and prevent cargo accidents for global shipping? Let’s talk. Your freight and your peace of mind deserve nothing less. Contact the DunLash team today.
