Fall from Scaffold Tower in Cargo Hold Causes Serious Injuries

By
Mfame Editor
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251
Credits: AUSTRALIAN TRANSPORT SAFETY BUREAU (ATSB)

As part of its BSafe campaign, the Britannia P&I Club shared lessons learned from the serious injury of two crew members after falling from a mobile scaffold tower, while painting the cargo holds, onboard a bulk carrier. The investigation identified absence of formal supervision and safety equipment, as well as lack of the manufacturer’s identification plate in the scaffolding.

The incident

A geared bulk carrier was at anchor awaiting a berth while the ship’s crew were carrying out routine duties, including painting work in cargo holds No.1 and 4. At about 0830 the C/O, the bosun, two able seamen (AB2 and AB3), the ordinary seaman (OS), and the deck cadet began work in No.1 hold. This required them to use the ship’s portable modular scaffold tower in order to access the upper aft bulkhead and topside tank about 6 to 9m above the tank top.

The crew members assembled five sections of scaffolding, which were held by two guy ropes that had been run up out of the hold and secured on deck. The C/O, as the supervisor, oversaw the work from the tank top and the bosun and AB3 painted from the scaffold tower. Both were wearing safety harnesses with safety lines secured on the ship’s main deck. The remaining crew members (AB2, OS and cadet) were assisting, which included handling the security and safety lines.

As each section was completed, the tower needed to be repositioned to access the next area. To do this, the bosun and AB3’s safety lines were released and they climbed down from the scaffolding. The scaffold tower’s securing lines were then released and it was repositioned and resecured. The bosun and AB3 then climbed up the tower, resecured their safety lines, and restarted painting. This was the process that was followed all morning and by 1130 the work in hold No.1 had been completed. The scaffold tower was disassembled and moved to hold No.4 ready for work to begin there after lunch.

At 1300 the bosun, AB1 (who had replaced AB2, who was now on duty on the bridge), AB3, the cadet, and the OS went to hold No.4, while the C/O was resting. As before, the bosun and AB3 painted from the scaffold tower (Figure 3) while the remaining crew members assisted.

A similar work sequence to that in hold No.1 was followed. However, this time when the scaffolding was moved, the bosun and AB3 remained on the tower while the OS and cadet repositioned it. Unlike in the morning, neither the bosun nor AB3 wore safety harnesses or used safety lines.

The work proceeded across the hold, with the scaffolding moved five times. The bosun was on tier five of the scaffold tower, about 8 m above the deck, and AB3 was one tier below, facing aft, about 6m above the deck.

After they had finished on the aft bulkhead, the bosun decided to touch up the hopper tank edge. He instructed the OS and cadet to move the scaffold tower forward so that they could reach the topside tank surface; the AB3 was aware the tower would be moved.

The cadet and OS released the tower securing lines and went down into the hold to move the tower. At about 1410 they released the wheel brakes and started to push the structure forward. The tower moved about 0.5m when it suddenly toppled forward onto the deck along with the bosun and AB3.

The scaffold tower came apart on impact with the tank top and the bosun and AB3 were entangled in the scaffolding components. AB1, the OS, and the cadet hurried to help, while the master, who had been in his cabin, went on deck to investigate. The bosun and AB3 were given first aid on the tank top, before later being moved to the main deck.

The bosun and AB3 were later airlifted by helicopter to hospital. The bosun received multiple injuries to his pelvis, chest, and arm and AB3 sustained a fractured sternum and back injury. They remained in hospital for 19 and 8 days respectively.

Subsequent inspection of the scaffolding identified that it had no manufacturer’s identification plate, and all components showed signs of regular use, wear and tear, damage, and some repairs.

Lessons learned

  • The bosun and AB remaining on the unsecured scaffold tower while it was being repositioned would have made it top-heavy and unstable and therefore would have contributed to its toppling.
  • The absence of formal supervision in the afternoon, along with a desire to expedite the task, probably led to the crew members remaining on the scaffolding as it was repositioned.
  • Scaffolding should always be in good condition and fit for purpose. It should also comply with relevant standards and be suitable for the work to be carried out.
  • Guidelines for the provision, care, and use of the scaffold tower were not supported by suitable onboard documentation. However, this did state that scaffolding should not be moved with people on it. The incident would probably have been prevented had this been followed.
  • The use of safety harnesses and lines would have prevented the crew members from falling while on the tower.
  • The proper completion of a risk assessment and working aloft checklist should have identified and mitigated the risks associated with moving the scaffolding with personnel on it.
  • An effective onboard Stop Work Authority programme should have prevented the incident by enabling any of the attending crew members to challenge the unsafe practices.

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Source: Britannia P&I