TT Talk - Costly pickings: the persistent accidental twin-lift problem
- crane operator error in not selecting a twin-lift mode or indeed in trying to lift with a fixed 40’ spreader;
- twistlocks not engaged properly;
- difficulty in observing what is being lifted, exacerbated by the depth of the hold and height of gantry cranes for the latest generation of container ships;
- override or disabling of the sensor system, either by the operator or the maintenance department (sometimes without informing the operational staff!);
- the ship’s manifest information being incorrect.
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