1. © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident

2. 2 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident  On November 13/2010, there was a Fall Arrest Incident that could have had dire consequences if procedures were not followed.  A worker was in the process of cleaning the floor with a blow pipe on a blast that benched when the ground he was standing on failed.

3. 3 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident  Through the investigation there are some key points that have come to light.  A 6’ X 6’ drop raise was blasted without any incident  On November 10, 2010 a driller on N/S was instructed to assist the client to blast 3 rings to open the slot and then to go to another level and continue drilling  The client decided to blast 13 rings into the slot raise against the advice from our driller. The blast subsequently benched.

4. 4 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident What went wrong  There was no blast letter issued hence no engineering control  The decision to blast that much ground into a 6’X6’ opening didn’t allow for the swell of the rock. Possibly what caused the blast to bench  The failure of the bench was slow enough that the locking mechanism of the Sala block didn’t engage  The worker fell approximately 15 feet into the open stope  When he fell he lost his hard hat  While the worker was suspended, material was falling from the edge, striking him

5. 5 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident What went right  A site inspection was done on the mucking level and on the working level to inspect bench  Worker was trained and using a fall arrest system  There were other workers present on watch  There was a rescue ladder nearby  The spotter was well experienced and knew what to do

6. 6 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident What could have been done better  There should have been a rescue plan in place  Worker should not have been working on the bench.  There should have been 3 anchors in place. One for the worker, one for the spotter and one for the rescue ladder  The rescue ladder should have been anchored and ready for use  A Sala block should not have been used in this situation. Use fall restraint instead

7. 7 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident Here are some pictures from the scene See if you can spot any mistakes

8. 8 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident Plan view Benched area where floor failed (3 rings blasted) Pillar Open Hole (10 rings blasted) Sala block Worker blowing bench here 6’X6’ Drop Raise Drift

9. 9 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident

10. 10 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident Shock absorber on harness Shock absorbing lanyard

11. 11 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident

12. 12 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident Improper anchor, not rated for 5000 lbs

13. 13 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident

14. 14 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident Snap hooks are connected together, roll out could occur

15. 15 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident

16. 16 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident Ladder wasn’t secured before incident

17. 17 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident Bench failure – Top view

18. 18 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident  Draw point was empty before incident

19. 19 © 2010 Boart Longyear. All rights reserved. TM Company confidential – unauthorized use or distribution prohibited Fall Arrest Incident Questions?