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Coal Inspectorate | Alert | No.445 V 1 | 09 February 2024

Uncontrolled movement of longwall transformer cart

What happened?

On 21 December 2023, an underground coal mine longwall transformer cart was being trammed into position when it moved down the grade in an uncontrolled manner for approximately 20 metres until it came to rest against a stationary load haul dump (LHD) machine.

Four coal mine workers (CMWs) were in the vicinity of the longwall transformer cart at the time of the incident. None were in the travel path of the out-of-control cart, however, the potential for a serious incident was evident.

Background information

How did it happen?


All site senior executives should:

All supervisors should:

All operators should:

Investigations are ongoing and further information may be published as it becomes available. The information in this publication is what is known at the time of writing.

We issue Safety Notices to draw attention to the occurrence of a serious incident, raise awareness of risks, and prompt assessment of your existing controls.

Authorised by Jacques le Roux - Chief Inspector – Coal

Contact: Mick Scully, Inspector of Mines , +61 7 3199 8001

Issued by Resources Safety & Health Queensland

Safety: This information is issued to promote safety through experience. It is not to be taken as a statement of law and must not be construed to waive or modify any legal obligation.
Placement: Place this announcement on noticeboards and ensure all relevant people in your organisation receive a copy, understand the content, findings and recommendations as applicable to their operation. SSEs should validate that recommendations have been implemented.

All information on this page (Uncontrolled movement of longwall transformer cart - is correct as of time of printing (Mar 3, 2024 2:46 am).