A small cargo vessel with eight crew on board had berthed in port and was finishing up deck upkeep. The vessel, a single hatch ship, had one maintain geared up with 10 pontoon hatch covers that have been moved utilizing a hydraulic gantry crane working on rails. The gantry crane operator’s platform was positioned on prime of the gantry on the starboard aspect.
The deliberate upkeep for the day was to vary the rubber gaskets for hatch cowl quantity 8. To perform this, hatch cowl 8 was lifted and positioned onto hatches covers 9 and 10.
To maintain the hatch cowl secure in its non permanent place and take a number of the load, wood stanchions have been improvised below a part of the hatch. Two deck crew have been to put the stanchions beneath the hatch cowl earlier than altering the gasket. The gantry crane operator couldn’t see the 2 crew beneath the hatch cowl and relied on VHF radio contact for communication.
The 2 crew chosen what they thought-about appropriate wood stanchions, every about 1.5m lengthy and about 150mm on all sides. As hatch cowl 8 was lowered, they positioned the stanchions vertically, one at all sides of the duvet. With the intention to accomplish this, the crew needed to stay below the hatch cowl all through the operation. As the burden of the hatch cowl was taken on the stanchions, the gantry crane hooks unexpectedly disconnected from the duvet lifting lugs. The sudden enhance in weight broke the wood stanchions and derailed the gantry. The crew member on the port aspect was capable of escape to security in time, however the crew on the starboard aspect was crushed by the hatch cowl.
In a short time, rescue operations have been undertaken however the crew member was discovered deceased.
- Improvising work procedures will increase dangers.
- By no means place your self below a load.
- Gantry cranes are helpful instruments, however have intrinsic design particulars that will increase dangers, such because the crane operator not having a transparent view of your entire work space.