Which action must be completed first in the PASS procedure for Halon extinguisher?

Which action must be completed first in the PASS procedure for Halon extinguisher?

• A. Squeeze lever for discharge operation
• B. Sweep using a side to side motion
• C. Pull pin and break seal
• D. Aim at the base of the fire

Answer: (C)

In the PASS sequence for a Halon extinguisher, the first action is to pull the pin and break the seal. The pin keeps the handle from being actuated, so removing it unlocks the mechanism and allows discharge. Once the pin is removed, you aim at the base of the fire to target the fuel source, then squeeze the lever to release the extinguishing agent, and sweep side to side to blanket the flames. The order matters because you can’t discharge until the pin is removed, and aiming and sweeping are steps that follow beginning discharge.

In the PASS sequence for a Halon extinguisher, the first action is to pull the pin and break the seal. The pin keeps the handle from being actuated, so removing it unlocks the mechanism and allows discharge. Once the pin is removed, you aim at the base of the fire to target the fuel source, then squeeze the lever to release the extinguishing agent, and sweep side to side to blanket the flames. The order matters because you can’t discharge until the pin is removed, and aiming and sweeping are steps that follow beginning discharge.