Safety Flash
Trencher angle inadvertently altered
Trencher angle inadvertently altered
- IMCA
- Safety Flash
- IMCA SF 10/20
- Human FactorsMachinery and Equipment
- Human factors
- ExcavationROV operations
- Operator displays and control interfaces
- Alarm managementCompetence and trainingHuman-centred design
- Subsea
Summary
Accidental joystick activation during offshore trenching raised the cutting wheel and reduced cutting depth, unnoticed during a shift handover and computer reboot. No equipment or permanent material damage occurred. The flash examines interface design and alarm tolerances, describing revised alarm settings, cessation of trenching during handovers and joystick deactivation.
Classifications: Human factors; human performance; ergonomics.
Classifications: Excavation; trenching.
Classifications: ROV operations; remotely operated vehicle operations.
Classifications: Operator displays and control interfaces.
Classifications: Alarm management.
Classifications: Competence and training; competency assurance; safety training.
Classifications: Human-centred design.
Classifications: Subsea; underwater worksite.
Summary
During offshore trenching operations, the ROV pilot unknowingly made contact with the control joystick, inadvertently raising the cutting wheel and thereby decreasing the cutting depth
IMCA SF 10/20. Themes: human factors, machinery and equipment.