NVIC 14-14 Task 4.7.A

Contribute to the safe operation of deck equipment and machinery

ABD-C1.2 Knowledge of the following procedures and ability to rig and unrig bosun’s chairs and staging

On board ship or in a laboratory,

the candidate rigs and unrigs a bosun’s chair.

The candidate:

1. Gathers all required materials;

2. Inspects the bosun’s chair:

   a. The material has not been chafed;

   b. The material has not been compromised by the sun or chemicals;

   c. Strapping is undamaged; and

   d. Hardware is undamaged and unworn;

3. Inspects the gantline to be used:

   a. The material has not been chafed; and

   b. The material has not been compromised by the sun or chemicals;

4. Inspects that hardware is serviceable;

5. Inspects the safety harness:

   a. The material has not been chafed;

   b. The material has not been compromised by the sun or chemicals;

   c. Strapping is undamaged; and

   d. Hardware is undamaged and unworn;

6. Gathers personnel who will be assisting and briefs them on commands to be used and safety precautions;
7. Rigs the gantline;

8. Rigs the bosun’s chair:

   a. For a modern bosun’s chair, follow the manufacturer’s recommendations; or

   b. For an old style bosun’s chair, use a gantline;

9. Tests the rigged bosun’s chair, staging, and gantlines by sitting in and/or standing on at the lowest point of the drop and bounce in the rig;
10. When raised so that feet clear the deck, secures themselves and performs a small task with both hands;
11. Frees the securing and lowers themselves to the deck; and
12. Unrigs and stows all equipment per the manufacturer’s instructions.