Process Owner: Health & Safety Mgr Verifiers: C Bird, A Cain Status: Approved Rev No.: 1.0 Issue Date: 25/11/2009 Page 1 of 1

Unless stamped in RED, this is an ‘Uncontrolled Document’

HAZARD ALERT

Location: External Location

Department: N/A

Date: 7 June 2010

Hazard: Exploding Fire Extinguisher

Description: A fire extinguisher located on a dozer exploded throwing the extinguisher approx 20mts from the machine. The brackets attached to the dozer had bolts protruding enough to induce wear and fatigue cracks on the cylinder itself which resulted in a catastrophic failure in the cylinder body. When installing the brackets to the machine care should be taken to ensure that no part of the cylinder is touching an area that may cause rubbing and wear on the cylinder body.

Immediate Actions Taken:

1. Queensland Fire & Rescue Service notified to be aware of possible issues and to ensure any cylinders with wear and tear marks are removed from service immediately

Actions To Be Taken:

1. On daily pre-starts remove cylinder and check for signs if wear and tear

2. Check brackets for protruding bolts

3. Replace cylinders and/or brackets immediately if signs of wear are found

4. All cylinders inspected as part of their 6mth testing are checked for signs of wear on the cylinder body

5. Utilise extinguisher brackets with rubber lining for added protection of cylinder bodies

Insert Picture

For further information contact;

Contact: Darren Bracey Phone: (07) 47443623

Email: DBracey@xstratacopper.com.au

FRM-118016

See Attached

Bracket bolt head appears to have created wear arearesulting in fatigue cracking 

Second extinguisher  showing fatigue cracking

Bracket strap wear area

Actual Bracket InvolvedArrows point to bolt location

Immediately after incident

Third extinguisher showing wear frombracket strap rubbing

Fatigue cracking

Alternate bracket design showing adequate gap between bolt heads and extinguisher