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Investigation reports

Where a critical industry or causal investigation is commenced an Investigation Information Release (IIR) is published (generally within 14-21 days) to share early learnings. A final report is published at the conclusion of the investigation.

The final reports provide information useful for a risk assessment, cause and circumstance of the incident, findings, and the actions taken after the incident.

Learning from investigations videos

Investigation reports may include incident animation videos as additional resources. All Learning from investigations videos can be viewed on the Regulator YouTube channel.

Hazard Incident details (by date of incident)
Fire or explosion
Worker suffers serious burns in underground loader fire
Cadia East Underground Mine, Orange NSW | 25 October 2021
Report: Investigation information release (IIR21-14) (PDF, 593.29 KB)
Roads or other vehicle operating areas
Rear dump truck narrowly avoids collision with light vehicle
Maules Creek Mine, near Boggabri NSW | 6 December 2021
Report: Investigation information release (IIR21-13) (PDF, 988.07 KB)
Ground or strata failure
Roof ply rock falls on two workers during pillar extraction
Clarence Colliery | 2 November 2021
Report: Investigation information release (IIR21-12) (PDF, 752.64 KB)
  Worker suffers serious injuries after falling into conveyor chute
Thuddungra Mine, Young NSW | 10 August 2021
Report: Investigation information release (IIR21-11) (PDF, 815.21 KB)
Roads or other vehicle operating areas
Collision between an excavator and a dozer
Maules Creek | 26 May 2021
Report: Investigation information release (IIR21-10) (PDF, 1.4 MB)
Roads or other vehicle operating areas
Worker seriously injured by recoiling pipe
Tahmoor | 24 April 2021
Report: Investigation information release (IIR21-09) (PDF, 176.7 KB)
Roads or other vehicle operating areas
Worker seriously injured during transit in underground roadway
Appin | 20 May 2021
Report: Investigation information release (IIR21-08) (PDF, 316.81 KB)
Roads or other vehicle operating areas
Fatality involving worker being struck by light vehicle
West Wyalong | 24 May 2021
Report: Investigation information release (IIR21-07) (PDF, 278.78 KB)
Explosives control plan
Person at risk from flyrock at quarry
Cootamundra | 8 April 2021
Report: Investigation information release (IIR21-06) (PDF, 412.07 KB)
Mechanical engineering control plan
Worker seriously injured by ejected object
Lynwood Quarry, Marulan NSW | 11 March 2021
Report: Investigation information release (IIR21-05) (PDF, 395.09 KB)
Mechanical engineering control plan
Worker injured by failed components during mobile jaw crusher maintenance
Buckaroo Mine, Mudgee NSW | 26 February 2021
Report: Investigation information release (IIR21-04) (PDF, 1.45 MB)
Mechanical engineering control plan
Worker suffers serious injuries when pinned by boom of a continuous miner
Myuna Colliery, Lake Macquarie NSW | 5 February 2021
Report: Investigation information release (IIR21-03) (PDF, 352.73 KB)
Mine shafts and winding systems
Drift winder head sheave pulley wheel falls from height during winder rope removal
Appin Colliery, Appin NSW | 6 October 2020
Report: Investigation information release (IIR21-02) (PDF, 673.45 KB)
Mechanical engineering control plan
Worker pinned by falling loader cab
Attunga Limestone Mine, near Tamworth, NSW | 30 November 2020
Report: Investigation information release (IIR21-01) (PDF, 571.06 KB)
Airborne dust and other airborne contaminants
Open cut coal mine worker contracts interstitial lung disease – Worker D
Undetermined but potentially workplaces within non-mining (civil construction) and mining sectors
Report: Investigation report (PDF, 845.4 KB)
Mechanical engineering control plan
Worker receives crush injury to foot from hydraulic stabilising jack on jumbo rig
CSA Mine, Cobar, NSW | 15 September 2020
Report: Investigation information release (IIR20-15) (PDF, 2.58 MB)
Roads or other vehicle operating areas
Collision between dozer and haul truck
Mangoola Coal, Wybong, NSW | 5 October 2020
Report: Investigation information release (IIR20-14) (PDF, 218.51 KB)
Electrical and mechanical engineering control plans
Worker injured when pulling electrical cable with an integrated tool carrier
Cadia Valley Operations, NSW | 1 September 2020
Report: Investigation information release (IIR20-13) (PDF, 721.24 KB)
Mine shafts and winding systems

Death of miner at opal mine
Grawin Opal Fields, NSW | 14 October 2020
Report: Investigation information release (IIR20-12) (PDF, 419.46 KB)

Investigation report: Report into the death of Brian Bryant at Grawin Opal Fields on 14 October 2020 (PDF, 7.69 MB)

  Non-work related death
Springvale Colliery | 21 August 2020
Report: Investigation information release (IIR20-11) (PDF, 249.08 KB)
Airborne dust and other airborne contaminants

Open cut coal mine worker contracts coal workers' pneumoconiosis
numerous coal mines in Qld | 1972-2015
Report: Investigation information release (IIR20-10) (PDF, 344.3 KB)

Mechanical engineering control plan
Worker injured while conducting repairs to mobile jaw crusher
Hera Mine, Cobar region via Nymagee, NSW | 13 May 2020
Report: Investigation information release (IIR20-09) (PDF, 509.85 KB)
Mechanical engineering control plan
Worker’s arm injured in belt press filter
Moolarben Coal Operations, NSW | 17 May 2020
Reports: Investigation information release (IIR20-08) (PDF, 714.13 KB)
Ground or strata failure
Partial collapse of a ventilation shaft
North Wambo Coal Mine, NSW | 3 May 2020
Report: Investigation information release (IIR20-07) (PDF, 487.31 KB)Causal investigation report (PDF, 1.22 MB)
Fire or explosion
Truck fire
Tritton Copper Mine, near Nyngan, NSW | 23 June 2018
Report: Investigation report (PDF, 10.22 MB)
  Non-work related death
Bulga Surface Operations, Singleton, NSW | 15 November 2019
Report: Investigation information release (IIR20-06) (PDF, 203.78 KB)
Mechanical engineering control plan
Worker seriously injured from fall
Wilpinjong Coal Mine, Wollar, NSW | 18 February 2020
Report: Investigation information release (IIR20-05) (PDF, 601.85 KB)

Investigation report archive

Use the document library to view the complete archive of published investigation information releases and investigation reports.