Lessons Learnt: High-Pressure System Failure High-pressure systems are widely used throughout ships and are essential to many maintenance activities. However, when the risks associated with stored energy, equipment condition and line-of-fire hazards are not fully appreciated, the consequences can be severe. This video examines a serious injury sustained during maintenance on a main engine cylinder unit following the failure of a hydraulic tool. The case highlights the importance of equipment integrity, effective risk assessment, energy isolation and safe positioning when working with high-pressure systems.  While centred on an engineering task, the lessons are relevant to all personnel involved in planning, supervising or carrying out maintenance activities on board. Watch the video here English  Japanese Simplified Chinese Spanish Korean