Video Camera Footage of Explosion mentioned in Anglo “Learning From Incidents” Investigation Report into the Methane Ignition on LW 104. Why has it not been shown during Grosvenor Mine Inquiry Public Hearings?

As the old saying goes a Picture is worth a Thousand Words.

How valuable would video camera footage of the Longwall 104 Face immediately preceding the time of the explosion and the face explosion be?

Underground Mine Workers all over Queensland and Australia as well as the General Public seeking to understand what happened at Anglo, could make a more informed decision about what occurred at Grosvenor.

So would the Grosvenor Mines Inquiry and members of the General Public.

There is mention of recorded camera footage of the explosion on the Longwall 104 face in Anglo “Learning From Incidents” Investigation Report Incident Number: IN.00224943 into the Methane Ignition on LW 104

 

If recorded video that shows the following happened why has it not been provided as evidence.

Anglo “Learning From Incidents” lists these as 2 out of at least 6 distinct events that can be seen.

Dust / pressure wave from TG to MG (as seen on MG camera looking inbye).

Flash near shearer (as seen on Bretby camera).

 

Before I get to what is said about the video footage I just wish to draw attention to several facts.

Firstly the footage must preserve the rights of those Mineworkers grievously burnt.

However this must be possible to view, as it seems that at least the entire Anglo Grosvenor Investigation Team of some 13 people have viewed the footage.

 

All electrically powered equipment on the Longwall Face has to have power tripped when the methane detectors on the face reach 2.5%.

If the Maingate, Bretby and I assume the Tailgate Cameras are still powered and recording, there must still be AC high voltage power to the face.

Therefore the methane monitors on the shearer or the Tailgate Drive have not measured 2.5% Methane and tripped the power.

That means that the Shearer, Maingate and Tailgate Drives and Chock Controls are all powered, as other sundry electrical equipment such as Cameras and Methane Sensors

As well as that by all evidence so far the AFC (Armoured Face Conveyor) would still be running

This is what the Anglo “Learning From Incidents” Investigation Report Incident Number: IN.00224943 into the Methane Ignition on LW 104

Visible Sequence of Events over an approximate 20 second period (as seen on operational cameras underground):

Maingate brattice wing pushed into the goaf (as seen on MG camera looking inbye).

Increased dust at Shearer (as seen on Bretby Camera).

Maingate brattice wing being sucked back away from the goaf (as seen on MG camera looking inbye).

MG brattice wing pushed back into the goaf a second time (as seen on MG camera bokhg inbye).

Dust / pressure wave from TG to MG (as seen on MG camera looking inbye).

Flash near shearer (as seen on Bretby camera).