Question:
Is Purple K Dry Chem the preferred extinguishers to put on Airfield Fuel trucks? We see many that come with White BC and I'd like to recommend replacement at the next hydro.
Answer:
Regulations do not specify a specific agent for this application. Purple K does have superior knock down and firefighting ability on flammable spill fires. Your recommendation to “upgrade” to a better extinguisher for the hazard is reasonable. Be sure to confirm that the Air Field allows dry chemical to be used around the airplanes as well.