Defective self-contained breathing apparatus cylinder units should be:

Defective self-contained breathing apparatus cylinder units should be:

• A. Repaired by a company officer
• B. Removed from service
• C. Put on reserve fire apparatus
• D. Filled to 80 percent capacity

Answer: (B)

Defective self-contained breathing apparatus cylinders present a serious safety risk because they are high‑pressure life‑support components. A damaged or suspect cylinder can fail unpredictably, potentially with explosive consequences if pressurized. Because field repairs aren’t appropriate for these vessels, the safe action is to remove the cylinder from service immediately and tag it out so it isn’t used. It should be evaluated and requalified only by the manufacturer or an authorized service center; until that assessment is complete, a serviceable cylinder should be used in its place to ensure reliable air supply. Filling to a partial capacity does not address a defect and could give a false sense of remaining air, and keeping a defective cylinder in service or attempting a repair would introduce unnecessary danger.

Defective self-contained breathing apparatus cylinders present a serious safety risk because they are high‑pressure life‑support components. A damaged or suspect cylinder can fail unpredictably, potentially with explosive consequences if pressurized. Because field repairs aren’t appropriate for these vessels, the safe action is to remove the cylinder from service immediately and tag it out so it isn’t used. It should be evaluated and requalified only by the manufacturer or an authorized service center; until that assessment is complete, a serviceable cylinder should be used in its place to ensure reliable air supply. Filling to a partial capacity does not address a defect and could give a false sense of remaining air, and keeping a defective cylinder in service or attempting a repair would introduce unnecessary danger.