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Elements and Performance Criteria

  1. Prepare for underwater air-lift operation
  2. Operate air-lift devices
  3. Conclude air-lift operations

Required Skills

This describes the essential skills and knowledge and their level required for this unit

Required Skills

check equipment

control neutrally buoyant objects

inflate airlift bags

inspect equipment for serviceability and functionality


rig equipment

Required Knowledge

characteristics and employment of airlift bags

determination of mass of submerged objects

dive equipment

dive physics

general occupationaldiving safety awareness

marine hazards


relevant references and Australian Standards

Evidence Required

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessment must confirm the ability to attend to personal and collective safety and to consider the environmental impact as part of the dive plan

Consistency in performance

Competency should be demonstrated during the following airlift operations with manually inflated airbags

Competency should be demonstrated during the following airlift operations with manually inflated airbags:

x vertical lift to surface

lift distance at least metres object must breach surface

depth between to metres

weight at least kg

x lateral lift

lateral distance at least metres

depth between to metres

weight at least kg

Context of and specific resources for assessment

Context of assessment

Competency should be assessed in the ocean

When practicable assessment should relate to the divers vocational focus

Specific resources for assessment

Access to a complete range of diving safety and accessory equipment airlift equipment and submerged objects

Access to a complete range of diving, safety and accessory equipment; airlift equipment; and submerged objects.

Range Statement

The Range Statement relates to the Unit of Competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording in the Performance Criteria is detailed below.

Load metrics may include:

centre of gravity



lift points


Worksite data may include:






Selecting, inspecting and preparing air-lift bags may include:

checking attachment lines and points

inspecting the neck

inspecting the outer skin

test fill

Action to remove/reduce the risk may include:

erecting signage

using patrol/sentry craft

Effectively controlling the object's movement may include:

both lateral and vertical adjustments

Environmental impact may include:

contamination of surrounding water (e.g. leaking oil)

physical damage to reef and associated floor eco-systems (e.g. coral)

visual pollution of waste material (e.g. concrete and metal parts)

De-servicing may include:


logging work details into equipment logs


washing in fresh water