According to NFPA 414, what is the minimum amount of dry chemical required on Index E ARFF vehicles?

• A. 500 lbs
• B. 800 lbs
• C. 900 lbs
• D. 1000 lbs

Answer: (C)

The correct amount of dry chemical required for Index E Aircraft Rescue and Firefighting (ARFF) vehicles according to NFPA 414 is based on the specifications set out for the different index classifications of vehicles designed to handle various levels of aircraft emergencies. For Index E, which pertains to larger aircraft with higher potential hazards, the standard mandates that the vehicle is equipped with a minimum of 900 pounds of dry chemical.

This quantity is determined to ensure that the ARFF vehicle has sufficient agent to effectively combat fuel fires that are likely to occur during aircraft incidents involving larger aircraft, as they present a greater risk due to their increased size and fuel load. The 900-pound requirement is reflective of the need for enhanced firefighting capabilities, providing the necessary resources to achieve effective suppression of fire in critical situations.

Larger amounts of dry chemical ensure better coverage and effectiveness in suppressing flames, particularly those resulting from aviation fuel. Understanding these standards is crucial for maintaining readiness in airport fire operations, ensuring that personnel can respond proficiently to emergencies involving larger aircraft.