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RT-130, Wildland Fire Safety Training Annual Refresher (WFSTAR)

RT-130 Decorative banner. Group of photos depicting wildland firefighters performing various duties.

Chainsaw Operational Complexity and Tree Size-Up - When Complexity Changes

Identify common themes from the Wildland Fire Lessons Learned Center “2004-2019 Tree Felling Accident Analysis” to promote discussion between new and experienced sawyers about ongoing procedural size-up and complexity analysis, human factors affecting the cutting process, and complexity changing throughout a chainsaw operation.
Category: Hazards
Core Component(s):
Local Topics, Incident Reviews and Lessons Learned, Fire and Aviation Operational Safety, Human Factors, Communication and Decision Making
Estimated Delivery Time: 45 minutes
Video Length: 20:26

Intent

Identify common themes from the Wildland Fire Lessons Learned Center 2004-2019 Tree Felling Accident Analysis to promote discussion between new and experienced sawyers about ongoing procedural size-up and complexity analysis, human factors affecting the cutting process, and complexity changing throughout a chainsaw operation.

Facilitator Preparation

  • Review the video, module tools, and additional resources linked below.
  • Consider additional discussion questions pertinent to your location and agency.
  • Guide discussion based on the topics and guidance provided below from the NWCG Hazard Tree and Tree Felling Subcommittee.

Facilitating the Discussion

  • Show the video.
  • Pause video as questions appear on screen to facilitate discussion.
  • Optional: Conduct additional activities pertinent to your location and agency.

Discussion Questions

  1. What size-up process(es) have you used or seen?
  2. What factors affect which is the good side vs. bad side of the tree?
  3. What does cutting area control mean to you?
  4. What other human factors might influence the size-up process, complexity analysis, or overall cutting operation?
  5. What experiences have caused you to reevaluate your felling operation? How do you maintain your cutting area control?

Resources

Video Information

  • This video is also available as a download (zip file, size 1.2 GB) with .srt file for closed captioning (you may need to right click and Save As). For information on how to add closed captioning to a video, see this how-to page.
  • Note: For Chrome, Firefox, and Edge, right click the word download and select Save Link As; for Internet Explorer (IE), right click and select Save Target As.

Last Modified / Reviewed:

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NWCG Latest Announcements

NWCG Equipment Technology Committee Releases Safety Warning: 24-001 Stihl Chainsaw Toolless Fuel Cap Spill Prevention

Date: November 14, 2024
Contact: Equipment Technology Committee

The Equipment Technology Committee (ETC) has released Safety Warning: 24-001 Stihl Chainsaw Toolless Fuel Cap Spill Prevention. Misaligned toolless fuel caps on Stihl chainsaws have led to recurring fuel spillage, fuel ignition, and burn injuries during wildland fire management operations.

This Safety Warning is intended to highlight the details and recommended procedures for the installation of a Stihl chainsaw toolless fuel cap, as well as how to identify and correct a misaligned, damaged, or broken fuel cap to help prevent fuel spillage.

References:

NWCG Safety Warning: 24-001 Stihl Chainsaw Toolless Fuel Cap Spill Prevention

Advertencia de equipos 24-001: Prevención de derrames de la tapa de combustible sin herramientas de la motosierra Stihl

NWCG Alerts

The Incident Position Standards and Next Generation Position Task Book are now available for Equipment Time Recorder (EQTR)

Date: November 13, 2024
Contact: Incident Business Committee

NWCG is excited to announce that the NWCG Incident Position Standards for Equipment Time Recorder, PMS 350-51 and NWCG Position Task Book for Equipment Time Recorder (EQTR), PMS 311-51 are now available.

The Performance Support Package, which for EQTR, includes the Incident Position Standards and Next Generation Position Task Book were developed through the Incident Performance and Training Modernization (IPTM) effort. The Performance Support Package will support trainees, those qualified in the position, and evaluators.

References:

NWCG Equipment Time Recorder Position Page

NWCG Incident Position Standards for Equipment Time Recorder, PMS 350-51

NWCG Position Task Book for Equipment Time Recorder (EQTR), PMS 311-51

The Incident Position Standards and Next Generation Position Task Book are now available for Personnel Time Recorder (PTRC)

Date: November 13, 2024
Contact: Incident Business Committee

NWCG is excited to announce that the NWCG Incident Position Standards for Personnel Time Recorder, PMS 350-53 and NWCG Position Task Book for Personnel Time Recorder (PTRC), PMS 311-53 are now available.

The Performance Support Package, which for PTRC, includes the Incident Position Standards and Next Generation Position Task Book were developed through the Incident Performance and Training Modernization (IPTM) effort. The Performance Support Package will support trainees, those qualified in the position, and evaluators.

References:

NWCG Personnel Time Recorder Position Page

NWCG Incident Position Standards for Personnel Time Recorder, PMS 350-53

NWCG Position Task Book for Personnel Time Recorder (PTRC), PMS 311-53

NWCG Risk Management Committee Releases Safety Bulletin: 24-001 Use of Respirators on Wildland Fires

Date: November 7, 2024
Contact: Risk Management Committee

The Risk Management Committee (RMC) has released Safety Bulletin: 24-001 Use of Respirators on Wildland Fires. As wildland fire respirators are available through several established vendors, wildland fire personnel need to understand regulations and limitations of respirator use in the workplace.

Safety Bulletin 24-001 outlines the following topics regarding respirator use for wildland fires:

  • Requirements for Respirator Use
  • Voluntary Respirator Use
  • Current Respirator Options
  • Unknown Risks of Respirator Use

This bulletin also provides mitigation recommendations to help reduce smoke exposure for wildland firefighting efforts.

References:

NWCG Safety Bulletin: 24-001 Use of Respirators on Wildland Fires

NWCG Smoke Management Guide for Prescribed Fire, PMS 420-3

VIDEO: Protecting Wildfire Personnel from Smoke - How Incident Management Teams Address Smokes Risks

VIDEO: Smoke, Knowing the Risks