What people issues were included in the hazard/incident (e.g competency level, training, procedures followed, fitness for work, etc)?
What plant/equipment/material issues were involved in the hazard/incident (e.g fit for purpose maintained equipment, protective devices/guards,PPE labelling etc )?
What work environment/natural environment issues were involved in the hazard/incident (e.g ventilation, ground conditions, wind, lighting, space, storage conditions, explosive atmosphere, etc ) ?
What procedural issues were involved in the hazard/incident (e.g permit system, isolation, standard operating procedures, maintenance, pre-use checks,etc )?