Elements and Performance Criteria
- Plan underwater search and recovery.
- Identify size, weight and other characteristics of lost object.
- Assess probable and possible location of lost object and define search area.
- Identify and assess site characteristics and hazards that impact the search and recovery operation.
- Determine suitable search methods and patterns according to situation.
- Determine suitable recovery methods according to size, weight and depth of object to be recovered.
- Select search and recovery equipment according to requirements.
- Confirm diver roles and protocols for communications between buddy and crew through a pre-dive briefing.
- Conduct search.
- Use surface techniques and above water landmarks to assist in locating position of submerged objects before descent.
- Establish boundaries of underwater search area, after descent, and mark starting point with appropriate equipment.
- Follow underwater patterns of travel to locate lost objects.
- Utilise search lines to assist navigating patterns of travel.
- Communicate with buddy and others throughout search using appropriate signals.
- Mark position of submerged objects for later retrieval if required.
- Recover objects.
- Retrieve small items by hand, stow in bag and secure for ascent.
- Mark location of heavy objects with buoy and line, in case of sinking during retrieval.
- Rig lift bag using appropriate knots or clips and check security.
- Inflate lift bag gradually to achieve appropriate buoyancy of object, and free object from obstructions as required.
- Swim to surface with lift bag or allow to rise independently, assuming safe position in relation to bag.
- Secure lift bag at surface and retrieve from water.
- Retrieve all markers on search and recovery conclusion.