This skill video demonstrates how to extinguish an APU/EPU or engine fire.NOTE: Some aircraft APU panels may take special tools such as wrenches to access. B…
Aircraft Rescue Fire Fighting – Extinguish an APU/EPU or Engine Fire
The engine and APU fire switches are typically installed on the center overhead panel or center console in the flight deck. When an engine fire switch is activated, the following happens: the engine stops because the fuel control shuts off, the engine is isolated from the aircraft systems, and the fire extinguishing system is activated.
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What is an aircraft fire extinguishing system?
Onboard systems designed to extinguish fires which occur either in the air or on the ground. For information on detecting and fighting fires in the cabin, see also the separate article: "Passenger Cabin Fire" Four types of fire extinguishing installations are found on commercial transport aircraft.
What happens when a fire extinguisher is activated on a plane?
If the flight crew activates the fire extinguisher system, a yellow disk is ejected from the skin of the aircraft fuselage. This is an indication for the maintenance crew that the fire extinguishing system was activated by the flight crew, and the fire extinguishing container needs to be replaced before next flight.
How do you distribute fire extinguishers on an aircraft?
Hand held fire extinguisher distribution within the aircraft (e.g. number of extinguishers in the cockpit, cabin, cargo compartments, etc.). Mounting and marking (e.g. there should be a special sign in case the fire extinguisher is not clearly visible). The need for regulatory approval and acceptable means of compliance.
What type of fire extinguisher should be used on older aircraft?
Where the dual fit of extinguisher is encountered on older aircraft, it is essential that Water Glycol extinguishers are used on solid material fires and Carbon Dioxide extinguishers on liquid or electrical equipment fires.
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Aircraft Engine / Cargo Bay Fire Extinguishers Explained Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher