Condition

On board ship or in a laboratory.

Performance requirement

Behavior Standard
The student will: During assessment, the student shall, at a minimum:

Gather materials.

Gather

  • bosun’s chair
  • gantline
  • hardware
  • safety harness
  • any other required equipment

Inspect the bosun’s chair.

Ensure that:

  • The material has not been chafed
  • The material has not been compromised by the sun or chemicals
  • Strapping is undamaged. and
  • Hardware is undamaged and unworn.

Inspect the gantline.

Ensure that:

  • The material has not been chafed, and
  • The material has not been compromised by the sun or chemicals.

Inspect that hardware.

Ensure that all hardware is servicable.

Inspect the safety harness.

Ensure that:

  • The material has not been chafed
  • The material has not been compromised by the sun or chemicals
  • Strapping is undamaged, and
  • Hardware is undamaged and unworn.

Gather personnel who will be assisting and brief them

Discuss commands to be used and safety precautions.

Rig the gantline and bosun’s chair

Ensure that:

  • For a modern bosun’s chair, follow the manufacturer’s recommendations,or
  • For an old style bosun’s chair, use a gantline.

Test the rigged bosun’s chair, staging, and gantlines.

sit in and/or stand on at the lowest point of the drop and bounce in the rig.

Perform a task while aloft.

Raise chair so that feet clear the deck.

Secure themselves.

Use both hands to perform a small task.

Unrig bosun’s chair.

Free the securing and lower themselves safely to the deck.

Unrig and stow all equipment per the manufacturer’s instructions.

Location

Assessed in MT‑2231 Basic Seamanship.

References

STCW Knowledge, Understanding and Proficiency

  1. ABD-C1.2

NVIC Tasks

  1. NVIC 14-14 Task 4.7.A Demonstrate rigging and unrigging a bosun’s chair