Asked about the number of managers, he said the mine had "had a lot of issues and challenges".
The miners are still not back underground, although some safety work is being done underground. The mine was not producing coal at the time and has been in development phase for the past month or so.
The Department of Labour lifted its prohibition notice more than two weeks ago. It brought work to a halt after a diesel generator above ground caught fire and injected high concentrations of carbon monoxide into the mine, one of the main fans tripped with no alert to management for 90 minutes, and an underground auxiliary fan tripped on two consecutive days, but did not stop the mining machine as it should have.
On Sunday, a change in the barometric pressure meant some seals in panel eight showed increased oxygen levels. Nitrogen was pumped in to keep the atmosphere inert, which is standard procedure.
Both the Department of Labour and Solid Energy said that was not a notifiable event.
- Greymouth Star