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97Fatality Resulting From A Continuous Miner Crushing Injury

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Brief Description of Incident/Accident & Description of Consequences/Outcomes:

INCIDENT A mechanical tradesperson was fatally injured as a result of the automatic operation of a continuous miner’s stabiliser cylinder whilst re-installing a conveyor boom assembly.

CIRCUMSTANCES Whilst connecting an elevating hydraulic cylinder to the conveyor boom, power was applied to the machine to assist with the installation of the top pin of the elevating cylinder. Upon operation of the hydraulic pump motor, the automatic operation of the stabiliser cylinder caught the tradesperson across the legs resulting in the fatal injury.

Energy Type(s) Involved:

Uncontrolled movement of equipment

Equipment Type(s):

Continuous Miner

Root & Contributing Cause(s):

LTA hazard identification

LTA isolation

LTA maintenance procedure

LTA maintenance work method

Stated or Potential Consequence(s):


Preventative/Recommended/Accepted Steps of Risk Mitigation, Points of Interest:

Managers and Engineers of Coal Mines should conduct an audit of all machinery where procedures require power to be applied to effect the installation, maintenance and removal of equipment.

Prior to any maintenance work being performed Supervisors should ensure appropriate isolation procedures exist and are fully implemented to ensure maintenance personnel cannot be inadvertently put at risk by the unplanned operation of machinery.

When preparing isolation procedures reference should be made to appropriate Australian standards for example AS 4024.1 “Safeguarding of machinery Part:1 General Principles”, AS 4804 “Occupational Health & Safety Management Systems - General Guidelines on Principles, Systems and Supporting Technologies” and AS 2671 “Fluid Power - Hydraulic Systems and Components”. Reference is also made to the Departmental Guideline MDG 1010 “Risk Management Handbook for the Mining Industry”.


New South Wales Department of Primary Industries, Minerals and Petroleum


Here are the results.


Reference Type:

Mine Safety Report #SA99-12

Mine Type:

Underground Mine > Underground Coal Mine


Potential & Kinetic - Mechanical > Crush





Australia, New South Wales

ICAM Categories

Organisational Factors

• LTA supervision

Task or Environmental Conditions


Individual or Team Actions

• LTA hazard analysis/job safety analysis

• LTA hazard identification

• LTA isolation

• LTA maintenance procedures

• LTA work method

Failed or Absent Defences


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