Which item is included in the emergency shutdown order?

• A. Throttles, Bottles, Batteries.
• B. Bottles, Throttles, Batteries.
• C. Batteries, Throttles, Bottles.
• D. Bottles, Batteries, Throttles.

Answer: (A)

In an aircraft fire emergency, the shutdown sequence is designed to rapidly reduce fuel and heat, then apply suppression, and finally secure remaining power. First, you shut down the throttles to stop engine power and cut off the primary fuel source, which immediately lowers the fire’s energy and growth potential. Next, you discharge the fire bottles to release the extinguishing agent directly into the affected area, suppressing the flames while the fuel source is being isolated. Finally, you cut the batteries to remove electrical power from the aircraft systems, minimizing the risk of arcing or re-ignition and simplifying the scene for responders. This order—throttles, bottles, batteries—provides the fastest, safest way to control the fire and protect the crew and responders.