Skidder listed

Safety Alert Type: 
Date of Incident / Close Call: 
Company Name: 
District of Mission Forestry
Details of Incident / Close Call: 

A skidder operator was attempting to pull a turn of logs out of a brushy section of a block when the skidder listed onto the driver’s side and the two passenger tires went up in the air. This almost resulted in a roll-over.

The operator immediately stopped the skidder and was able to minimize the “over centre” problem by repositioning the turn and safely driving out. The operator used a different route for the rest of the turns. The soft spot was obscured by brush and a small area of the site then had a side slope over 15%. The turn of logs was effectively pushing the skidder, compounding the situation.

Other Conditions:

  1. The worker was wearing his seatbelt which prevented him from being injured.
  2. The site had a maximum side slope of 15%.
  3. This was the first turn from this portion of the block.
  4. Block was initially planned/layout for tower yarding, however there were no site limiting factors against using ground-based equipment.


Learnings and Suggestions: 
  • Risk assessment and action plan should be done if grade is over 35%, although this was not the case here.
  • Discuss potential issues during work site inspection. If changing yarding equipment, ensure block is able to be yarded safely with new equipment.
  • Continue to be diligent in outlining plan of attack (Foreman/worker). Forestry manager responsible to identify in pre-work.
  • Always expect the unexpected, especially if the site is brushy.
  • Walk trail on foot before skidding in extreme brushy conditions.
  • If hoe chucker is available, use it to clear debris/brush.


File attachments
2008-11-21 Skidder listed.pdf
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