Which item is not listed among the onboard firefighting equipment?

• A. 7xPBE's
• B. 4xHalon Extinguishers
• C. 2xWater glycol extinguishers
• D. 1xCrash Axe

Answer: (C)

Onboard firefighting gear is chosen for quick, safe action in the confined spaces of an aircraft. Crew need protective breathing equipment to work through smoke, portable extinguishers to tackle different fire types, and a tool to access areas when needed. The protective breathing equipment (PBE) provides a breathable air supply so crew can stay safe while fighting a fire. Halon extinguishers are compact and effective for typical cockpit and cabin fires, including electrical fires, which is why multiple extinguishers are commonly listed. A crash axe is standard for breaking through panels or gaining access to a fire area when doors or panels are obstructed.

Water glycol extinguishers aren’t part of the standard onboard firefighting kit in many inventories because water-based agents add weight and can pose risks in electrical environments; they’re not as universally suitable for the varied fire scenarios encountered aboard an aircraft. That’s why the water glycol extinguisher isn’t listed among the typical onboard equipment.